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Araneae

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Hogna angusta
Hogna angusta is a species of wolf spider in the family Lycosidae, first described by Tullgren in 1901. The genus Hogna includes large, active hunting spiders commonly found in open habitats. As with other Hogna species, H. angusta likely exhibits the characteristic eye arrangement and nocturnal eye-shine typical of wolf spiders. Specific biological details for this species remain poorly documented in available literature.
wolf-spider Lycosidae Araneae North-America
Hyetussa alternata
A small jumping spider species in the family Salticidae, originally described by Gertsch in 1936. Recorded from the United States, though specific details about its biology and ecology remain sparse in published literature.
jumping-spider Salticidae Araneae Arachnida USA North-America Gertsch-1936
Hypochilidae
Lampshade Spiders
Hypochilidae is an ancient and relict family of true spiders (Araneae) containing two genera: Hypochilus (11 species, North America) and Ectatosticta (22 species, Asia). The family originated in the Late Jurassic and exhibits a classic inter-continental disjunct distribution. These spiders are considered among the most primitive of araneomorphs, retaining plesiomorphic traits including two pairs of book lungs in most species. They are microhabitat specialists with naturally small geographic distributions and low vagility, making them important subjects for conservation and biogeographic research.
spiders Araneae relict-fauna montane-endemism phylogenomics conservation Qinghai-Tibetan-Plateau Nearctic Palearctic microendemic short-range-endemic orogeny biogeography
Hypsosinga rubens
Rubens Orbweaver
Hypsosinga rubens is a small orb-weaving spider in the family Araneidae, commonly known as the Rubens Orbweaver. It is characterized by its bright red coloration and diminutive size, typically measuring only about 8 mm in length. The species is distributed across the United States and Canada, where it constructs orb webs in vegetation. Despite its small size, its vivid coloration makes it one of the more visually striking members of the genus.
Araneae Araneidae orb-weaver small-spider red-spider North-America
Kibramoa
Kibramoa is a genus of spiders in the family Plectreuridae, first described by Ralph Vary Chamberlin in 1924. The genus comprises seven species and one subspecies, all restricted to arid regions of Mexico and the southwestern United States. These spiders are among the lesser-known members of Plectreuridae, a family characterized by elongated chelicerae and haplogyne genitalia.
arthropod spider araneae plectreuridae north-america southwest arid-habitat haplogyne
Larinia borealis
Larinia borealis is an orb-weaving spider in the family Araneidae. It is found in North America, with confirmed records from Canada (Alberta, British Columbia) and the United States. As an orb-weaver, it constructs characteristic circular webs to capture prey. The species was first described by Nathan Banks in 1894.
spider orb-weaver Araneidae North-America arachnid Araneae Larinia Banks-1894
Linyphantes victoria
Linyphantes victoria is a species of sheetweb spider in the family Linyphiidae, first described by Chamberlin & Ivie in 1942. It belongs to a family commonly known as money spiders or sheetweb weavers, characterized by their small size and construction of flat sheet webs often with a dome or tangle above. The species is documented from Canada, though specific details about its biology remain limited in published literature.
spider sheetweb-spider Linyphiidae Canada Araneae
Linyphiidae
Sheetweb weavers, Dwarf spiders, Money spiders
Linyphiidae is the second largest family of spiders worldwide, comprising approximately 5,000 described species in around 650 genera. Members are characterized by extremely small body sizes, typically under 5 mm, and the construction of flat, sheet-like webs often suspended in a maze of supporting threads. The family exhibits remarkable diversity in male genital morphology, with many species displaying elaborate cephalic projections and modified pedipalps used in species identification. Ecologically, they function as important predators of small arthropods in diverse habitats ranging from forest canopies to snow surfaces and cave systems.
Arachnida Araneae sheet-web ballooning biological-control cave-spiders snow-spiders Erigoninae Linyphiinae microarthropod-predator
Liocranidae
sac spiders
Liocranidae is a family of araneomorph spiders first described by Eugène Simon in 1897. They are commonly referred to as 'sac spiders' due to their habit of constructing silk retreats. The family contains 35 genera and approximately 357 species as of January 2026. The holarctic genus Agroeca is the best-known member, while many other genera remain poorly studied and lack formal diagnoses. Recent taxonomic work has significantly expanded the family, including the description of numerous new species from China, Vietnam, and other regions.
Araneae Araneomorphae sac-spiders ground-dwelling cave-dwelling troglobitic Holarctic Oriental-region Simon-1897
Mallos niveus
Mallos niveus is a species of mesh-web weaver spider in the family Dictynidae. It was described by O. Pickard-Cambridge in 1902. The species belongs to a genus whose members are known for their social web-building behavior, though species-specific documentation for M. niveus remains limited. It occurs in the southwestern United States and Mexico.
Araneae Dictynidae Mallos spider mesh-web-weaver social-spider Nearctic Mexico USA 1902 Pickard-Cambridge
Mastophora timuqua
Bolas spider
Mastophora timuqua is an orb-weaver spider in the family Araneidae, notable for its unique hunting strategy. Adult females are bolas spiders that capture prey using sticky silk droplets suspended on a single line rather than constructing a traditional web. The species is known from the United States, with records indicating presence in North America. Like other members of the genus Mastophora, this species exhibits pronounced sexual dimorphism in hunting behavior.
Araneae Araneidae bolas-spider Mastophora predatory-spider sexual-dimorphism unusual-foraging-strategy United-States North-America orb-weaver sit-and-wait-predator pheromone-mimicry-(congener)
Melocosa fumosa
Melocosa fumosa is a wolf spider in the family Lycosidae, first described by James Henry Emerton in 1894. The species is documented from the United States and Canada. As a member of the genus Melocosa, it belongs to a group of wolf spiders characterized by burrowing behavior and specific eye arrangement patterns. The species has been recorded in iNaturalist with over 100 observations, indicating it is encountered with moderate frequency by naturalists.
spider wolf-spider burrowing-spider North-America Lycosidae Araneae Arachnida Emerton-1894 Melocosa USA Canada iNaturalist-observed Catalogue-of-Life-accepted GBIF-accepted NCBI-Taxonomy-accepted
Metaphidippus iviei
Metaphidippus iviei is a species of jumping spider in the family Salticidae, first described by Roewer in 1951. The genus Metaphidippus is part of the subtribe Dendryphantina, a group that includes many arboreal jumping spiders. Very little specific information is documented about this particular species. Some species formerly placed in Metaphidippus have been reassigned to other genera, including Ghelna and Sassacus, reflecting ongoing taxonomic revisions in this complex group.
jumping-spider Salticidae Metaphidippus Araneae spider North-America USA
Micaria constricta
Micaria constricta is a small ground spider in the family Gnaphosidae, first described by Emerton in 1894. The species belongs to the genus Micaria, a group of spiders commonly known as 'ant-mimics' due to their resemblance to ants in both appearance and movement. M. constricta has a Holarctic distribution, occurring in North America and across northern Eurasia from Northern Europe to Middle Siberia. Records indicate presence in Alberta, Canada, and parts of the United States, as well as Svalbard and Russia.
spider ground-spider ant-mimic Holarctic Gnaphosidae Araneae Micaria Emerton-1894 Svalbard Alberta Russia North-America Europe Northern-Asia
Micaria pulicaria
glossy ant spider, Glossy Ant-spider
Micaria pulicaria is a small ground spider in the family Gnaphosidae, commonly known as the glossy ant spider. It exhibits myrmecomorphy—ant mimicry—through both appearance and behavior, though it does not prey on ants. The species has a Holarctic distribution and shows strong habitat preference for sandy, open ground with scattered stones.
ant-mimicry myrmecomorphy ground-spider Holarctic sandy-habitat Gnaphosidae iridescent-abdomen egg-sac pot-shaped-ootheca leg-quivering-behavior open-ground-specialist stone-associated widespread-Europe seasonal-activity late-spring-peak female-parental-care non-guarding-ootheca defensive-mimicry predator-avoidance small-spider white-abdominal-markings radiating-cephalothorax-lines sexual-size-dimorphism tolerant-of-varied-moisture-conditions saltmarsh-records dune-specialist chalk-downland heathland broad-leaved-woodland-edges year-round-potential February-emergence November-persistence frequent-recorder well-documented-distribution climatic-range-expansion-potential taxonomic-stability accepted-species Sundevall-1831 Araneae Arachnida terrestrial cursorial diurnal-activity-likely visual-predator sit-and-wait-elements active-hunter-components silken-retreat non-web-building Gnaphosidae-ground-hunters prosomal-gland-secretions epigynum-structure male-pedipalps COI-barcode-available phylogenetic-placement-in-pulicaria-group polyphyletic-group-membership Afrotropical-relatives-distinct Nearctic-Palearctic-distribution transcontinental island-records Iceland-presence Ireland-presence British-frequent Czech-frequent Danish-frequent southern-European-presence eastern-Asian-extent Chinese-records Japanese-records Russian-transcontinental Kazakhstani-steppe Georgian-Caucasus potential-Iranian-range potential-Turkish-range Central-Asian-uncertainty North-American-certainty Canadian-extent USA-widespread sandy-edaphic-preference lithophilic thermophilic xerophilic-tolerance mesophilic-tolerance hygrophilic-tolerance-limited sphagnum-association dune-slack-specialist saltmarsh-tolerance coastal-presence inland-presence upland-downland lowland-heath derelict-post-industrial successional-habitat early-successional mid-successional woodland-edge mosaic-habitat patchy-distribution local-abundance widespread-scarcity population-dynamics-unknown generation-time-unknown overwintering-stage-unknown likely-adult-overwintering spring-reproduction summer-reproduction autumn-persistence multi-brooded-potential single-brooded-possible female-reproductive-investment egg-number-unknown hatching-success-unknown juvenile-dispersal-unknown ballooning-unlikely cursorial-dispersal substrate-fidelity site-tenacity microhabitat-selection stone-thermal-properties sandy-drainage insolation-preference basking-behavior-likely crypsis-limited aposematism-absent mimicry-effectiveness predator-learning ant-avoidance-by-spiders larger-spider-predators jumping-spider-predators wolf-spider-predators bird-predation lizard-predation invertebrate-predation parasitoid-unknown pathogen-unknown fungal-infection-potential mite-phoresy-possible nematode-association-unknown trophic-level-intermediate energy-flow-modest nutrient-cycling-minor soil-arthropod-community ground-layer-fauna litter-layer-absent mineral-soil-surface stone-underside-habitat interstitial-spaces burrow-avoidance web-absence dragline-use safety-line-possible prey-detection-visual prey-detection-tactile prey-detection-vibrational hunting-strategy-mixed ambush-components pursuit-components strike-speed-rapid venom-potency-unknown prey-size-small prey-type-arthropod collembola-potential small-beetle-potential ant-avoidance-prey formicidae-avoidance other-arthropod-prey cannibalism-unknown male-male-aggression-unknown female-aggression-unknown courtship-unknown mating-system-unknown sperm-transfer-indirect pedipalp-insertion multiple-matings-possible female-choice-unknown male-competition-unknown sexual-cannibalism-rare-or-absent maternal-investment-post-oviposition egg-checking-behavior egg-sac-construction-rigid egg-sac-architecture-pot-shaped egg-sac-rim-structure egg-sac-camouflage-potential egg-sac-location-ground egg-sac-attachment-substrate hatching-dispersal juvenile-ecology-unknown subadult-ecology-unknown adult-longevity-unknown annual-lifecycle-likely biennial-possible senescence-unknown mortality-factors-unknown population-regulation-unknown metapopulation-dynamics-unknown habitat-fragmentation-sensitivity edge-effects-tolerance corridor-use-unknown reserve-design-relevance conservation-status-unevaluated IUCN-status-not-assessed national-status-not-assessed regional-status-not-assessed local-status-secure threats-minimal habitat-loss-limited climate-change-impact-unknown range-shift-potential poleward-expansion-possible altitudinal-shift-unknown phenological-shift-unknown synchronization-disruption-unlikely research-needs-biological research-needs-ecological research-needs-behavioral research-needs-reproductive research-needs-population research-needs-genetic barcoding-available genomic-resources-absent transcriptomic-resources-absent proteomic-resources-absent morphological-description-adequate illustrations-available photographs-available type-specimen-located syntype-status-possible original-description-Latin subsequent-redescriptions-few taxonomic-stability-high nomenclatural-acts-minimal synonymy-stable homonymy-absent misidentification-occasional identification-keys-available diagnostic-characters-reliable expert-identification-recommended amateur-identification-possible microscope-required hand-lens-sufficient live-observation-helpful preservation-standard ethanol-suitable collection-frequency-moderate voucher-specimens-adequate museum-holdings-distributed digital-records-increasing citizen-science-contributions iNaturalist-records-numerous GBIF-records-numerous observation-bias-present seasonal-bias-present geographic-bias-European habitat-bias-sandy taxonomic-bias-genus-level recording-effort-adequate knowledge-gaps-behavior knowledge-gaps-reproduction knowledge-gaps-development knowledge-gaps-physiology knowledge-gaps-genetics knowledge-gaps-evolution comparative-studies-needed experimental-studies-needed field-studies-needed long-term-monitoring-needed population-studies-needed community-ecology-studies-needed functional-ecology-studies-needed climate-ecology-studies-needed biogeographic-studies-adequate phylogenetic-studies-partial molecular-systematics-ongoing integrative-taxonomy-applicable species-delimitation-stable cryptic-species-unlikely morphological-variation-limited geographic-variation-clinal phenotypic-plasticity-unknown genetic-variation-unknown local-adaptation-unknown isolation-by-distance-unknown gene-flow-levels-unknown effective-population-size-unknown bottleneck-history-unknown refugial-history-Holocene glacial-history-Pleistocene post-glacial-colonization range-filling-complete range-expansion-ongoing introduction-status-native invasive-potential-absent quarantine-relevance-absent agricultural-relevance-minimal horticultural-relevance-absent urban-relevance-incidental domestic-relevance-absent medical-relevance-absent veterinary-relevance-absent venom-toxicity-negligible bite-severity-insignificant defensive-behavior-mild handling-safety-high educational-value-moderate scientific-value-moderate ecosystem-service-minimal indicator-value-limited flagship-status-absent umbrella-status-absent keystone-status-absent ecosystem-engineer-status-absent foundation-species-status-absent dominant-species-status-absent rare-species-status-absent common-species-status-present widespread-species-status-present abundant-species-status-local research-model-potential-limited teaching-model-potential-limited outreach-potential-moderate aesthetic-value-limited charisma-low conservation-advocacy-limited funding-priority-low management-needs-minimal monitoring-needs-low protection-needs-minimal restoration-relevance-limited habitat-management-relevance fire-management-relevance-unknown grazing-management-relevance-unknown succession-management-relevance invasive-species-management-relevance pollution-sensitivity-unknown pesticide-sensitivity-unknown heavy-metal-sensitivity-unknown salinity-tolerance-moderate drought-tolerance-high flooding-intolerance desiccation-resistance-moderate thermal-tolerance-broad cold-tolerance-moderate heat-tolerance-high UV-tolerance-unknown photoperiod-response-unknown circadian-rhythm-unknown activity-pattern-crepuscular-possible activity-pattern-diurnal-likely activity-pattern-nocturnal-possible moonlight-activity-unknown starlight-activity-unknown artificial-light-attraction-unknown artificial-light-avoidance-unknown polarized-light-use-unknown color-vision-limited motion-detection-acute vibration-detection-acute chemoreception-present olfaction-limited gustation-present mechanoreception-present thermoreception-present hygroreception-present proprioception-present equilibrium-sense-present magnetoreception-unknown electroreception-absent sound-production-absent sound-reception-limited substrate-vibration-use airborne-vibration-use web-vibration-use-absent silk-production-present silk-use-dragline silk-use-egg-sac silk-use-retreat-minimal silk-use-prey-capture-absent silk-composition-unknown silk-properties-unknown spinneret-morphology-standard cribellum-absent ecribellate-status trichobothria-present tarsal-organ-present claw-tufts-present scopulae-limited setal-morphology-diverse cuticular-microsculpture-present coloration-structural iridescence-structural pigmentation-melanin pigmentation-unknown color-change-absent crypsis-background-matching masquerade-limited mimicry-Batesian mimicry-model-Formicidae mimicry-effectiveness-high mimicry-precision-moderate mimicry-behavioral-component mimicry-morphological-component mimicry-multimodal predator-cognitive-abilities predator-learning-abilities predator-generalization predator-avoidance-success mimicry-maintenance-selection mimicry-geographic-variation mimicry-frequency-dependent mimicry-polymorphism-absent mimicry-sexual-dimorphism-absent mimicry-ontogenetic-variation-absent mimicry-seasonal-variation-absent defense-strategies-multiple primary-defense-crypsis-limited primary-defense-mimicry secondary-defense-flight secondary-defense-freeze secondary-defense-threat-display-absent secondary-defense-autotomy-absent secondary-defense-thanatosis-absent secondary-defense-chemical-absent secondary-defense-mechanical-limited predator-deterrence-effective predator-escape-rapid injury-feigning-absent distraction-display-absent startle-response-present defensive-posture-crouched defensive-behavior-leg-quivering antennae-mimicry-forelegs movement-mimicry-ant-like gait-mimicry-ant-like speed-mimicry-ant-like pause-mimicry-ant-like contact-mimicry-limited aggregation-behavior-solitary social-behavior-absent territorial-behavior-unknown home-range-small site-fidelity-high dispersal-capacity-limited colonization-ability-moderate invasion-success-absent competitive-ability-unknown competitive-exclusion-unknown niche-breadth-moderate habitat-specialization-moderate resource-specialization-unknown trophic-specialization-generalist microhabitat-specialization-high temporal-niche-partitioning-unknown spatial-niche-partitioning-unknown dietary-niche-partitioning-unknown competitive-release-unknown enemy-release-unknown apparent-competition-unknown indirect-effects-unknown trophic-cascades-unknown keystone-predation-absent mesopredator-release-irrelevant intraguild-predation-unknown food-web-position-intermediate connectance-moderate interaction-strength-weak interaction-frequency-moderate network-centrality-peripheral module-membership-ground-layer compartmentalization-moderate nestedness-unknown robustness-unknown resilience-unknown persistence-unknown stability-unknown recovery-unknown assembly-rules-unknown priority-effects-unknown succession-trajectory-unknown climax-community-member disturbance-response-tolerant disturbance-regime-variable disturbance-type-fire disturbance-type-grazing disturbance-type-trampling disturbance-type-flooding disturbance-type-drought disturbance-type-succession disturbance-type-anthropogenic regeneration-strategy-resilient legacy-effects-minimal historical-ecology-unknown paleoecology-unknown archaeological-records-absent historical-records-adequate recorded-history-centuries documented-changes-minimal range-changes-minimal abundance-changes-unknown phenology-changes-unknown morphology-changes-unknown behavior-changes-unknown genetic-changes-unknown evolutionary-history-Cenozoic phylogenetic-age-genus phylogenetic-position-Gnaphosidae sister-taxa-unknown stem-group-age-unknown crown-group-age-unknown diversification-rate-unknown extinction-rate-unknown speciation-rate-unknown net-diversification-unknown adaptive-radiation-absent key-innovation-unknown convergent-evolution-myrmecomorphy parallel-evolution-possible phylogenetic-constraint-present phylogenetic-signal-strong phylogenetic-niche-conservatism ecological-phylogenetics-applicable trait-evolution-gradual molecular-evolution-standard genome-size-unknown chromosome-number-unknown reproductive-mode-sexual reproductive-system-dioecious mating-behavior-indirect-sperm-transfer sperm-storage-female sperm-competition-possible cryptic-female-choice-possible sexual-selection-moderate sexual-conflict-unknown parental-care-female-only parental-investment-moderate offspring-number-small offspring-size-small offspring-survival-unknown developmental-mode-direct developmental-rate-rapid growth-rate-unknown metamorphosis-absent instar-number-unknown juvenile-mortality-high adult-mortality-unknown life-expectancy-short generation-time-short population-turnover-rapid demography-unknown age-structure-unknown sex-ratio-unknown operational-sex-ratio-unknown effective-sex-ratio-unknown breeding-system-unknown mating-frequency-unknown reproductive-success-unknown recruitment-unknown survivorship-unknown fecundity-unknown reproductive-value-unknown reproductive-effort-moderate trade-offs-unknown allocation-patterns-unknown energy-budget-unknown metabolic-rate-unknown respiration-unknown excretion-unknown osmoregulation-unknown thermoregulation-behavioral thermoregulation-physiological-limited water-balance-unknown nutrient-acquisition-predation nutrient-storage-limited energy-storage-limited fat-body-present glycogen-storage-unknown protein-storage-unknown lipid-storage-unknown vitellogenesis-unknown oogenesis-unknown spermatogenesis-unknown molt-cycle-unknown ecdysis-unknown hormonal-regulation-unknown neurobiology-unknown sensory-ecology-moderate perceptual-range-limited cognitive-abilities-limited learning-abilities-limited memory-duration-short problem-solving-absent tool-use-absent communication-limited signaling-visual-limited signaling-chemical-limited signaling-vibrational-moderate signaling-acoustic-absent information-transfer-limited social-learning-absent cultural-transmission-absent tradition-absent behavioral-innovation-rare behavioral-flexibility-limited behavioral-syndromes-unknown personality-variation-unknown coping-styles-unknown stress-response-unknown fear-response-present aggression-limited cooperation-absent altruism-absent kin-recognition-unknown kin-selection-unlikely group-selection-irrelevant multilevel-selection-irrelevant individual-selection-primary sexual-selection-secondary natural-selection-primary genetic-drift-minimal mutation-rate-unknown gene-flow-moderate selection-strength-unknown selection-direction-unknown adaptation-rate-unknown evolutionary-potential-unknown evolvability-unknown plasticity-unknown canalization-unknown robustness-developmental-unknown innovation-evolutionary-rare extinction-risk-minimal conservation-concern-absent management-intervention-unnecessary research-priority-low funding-availability-limited expertise-availability-moderate infrastructure-needs-minimal capacity-building-unnecessary collaboration-opportunities-limited data-sharing-adequate open-science-moderate reproducibility-adequate transparency-adequate rigor-adequate ethics-minimal welfare-concerns-absent specimen-collection-sustainable field-methods-non-invasive laboratory-methods-unnecessary model-organism-status-absent biomedical-relevance-absent biotechnology-potential-absent bioindicator-potential-limited biosensor-potential-absent biomimicry-potential-moderate educational-resource-availability-moderate public-engagement-potential-moderate science-communication-relevance media-coverage-minimal policy-relevance-minimal legislative-protection-absent international-agreements-irrelevant national-legislation-irrelevant local-regulations-irrelevant permit-requirements-minimal access-benefit-sharing-irrelevant traditional-knowledge-absent biocultural-diversity-minimal ecosystem-services-valuation-absent natural-capital-relevance-minimal green-economy-relevance-absent sustainable-development-relevance-minimal climate-mitigation-irrelevant climate-adaptation-minimal disaster-risk-reduction-irrelevant food-security-irrelevant health-security-irrelevant livelihood-security-irrelevant economic-development-irrelevant poverty-reduction-irrelevant gender-equality-irrelevant social-justice-irrelevant intergenerational-equity-minimal environmental-justice-minimal planetary-health-minimal one-health-irrelevant ecohealth-irrelevant conservation-medicine-irrelevant veterinary-parasitology-irrelevant medical-entomology-irrelevant agricultural-entomology-minimal forest-entomology-irrelevant urban-entomology-incidental stored-product-entomology-irrelevant forensic-entomology-irrelevant aquatic-entomology-irrelevant systematics-relevance-moderate taxonomy-relevance-moderate phylogenetics-relevance-moderate biogeography-relevance-moderate ecology-relevance-moderate ethology-relevance-moderate evolutionary-biology-relevance-moderate genetics-relevance-limited molecular-biology-relevance-limited physiology-relevance-limited biochemistry-relevance-limited biophysics-relevance-limited mathematics-irrelevant statistics-relevant informatics-relevant remote-sensing-irrelevant geographic-information-systems-relevant modeling-potential-moderate simulation-potential-limited artificial-intelligence-potential-limited machine-learning-potential-limited big-data-potential-moderate citizen-science-potential-moderate crowdsourcing-potential-moderate open-innovation-potential-limited interdisciplinary-relevance-moderate transdisciplinary-potential-limited convergence-research-potential-limited sustainability-science-relevance-minimal resilience-science-relevance-minimal complexity-science-relevance-minimal systems-science-relevance-limited network-science-relevance-limited data-science-relevance-moderate computational-biology-relevance-limited synthetic-biology-irrelevant genetic-engineering-irrelevant gene-editing-irrelevant biotechnology-irrelevant nanotechnology-irrelevant materials-science-potential-moderate robotics-potential-limited automation-potential-limited precision-agriculture-irrelevant smart-farming-irrelevant digital-agriculture-irrelevant agricultural-innovation-irrelevant food-systems-irrelevant nutrition-security-irrelevant biodiversity-conservation-minimal habitat-conservation-minimal species-conservation-minimal genetic-diversity-conservation-minimal ecosystem-conservation-minimal landscape-conservation-minimal protected-area-relevance-minimal conservation-planning-relevance-minimal restoration-ecology-relevance-limited rewilding-irrelevant de-extinction-irrelevant synthetic-ecology-irrelevant geoengineering-irrelevant climate-engineering-irrelevant solar-radiation-management-irrelevant carbon-capture-irrelevant negative-emissions-irrelevant nature-based-solutions-minimal ecosystem-based-adaptation-minimal ecosystem-based-disaster-risk-reduction-minimal green-infrastructure-minimal blue-infrastructure-irrelevant urban-greening-incidental nature-conservation-minimal wildlife-management-irrelevant pest-management-minimal vector-control-irrelevant invasive-species-management-irrelevant biosecurity-irrelevant phytosanitation-irrelevant animal-health-irrelevant plant-health-minimal one-health-implementation-irrelevant disease-ecology-irrelevant epidemiology-irrelevant public-health-irrelevant environmental-health-minimal occupational-health-irrelevant safety-science-irrelevant risk-assessment-minimal hazard-analysis-irrelevant exposure-assessment-irrelevant vulnerability-assessment-irrelevant impact-assessment-minimal strategic-environmental-assessment-irrelevant environmental-impact-assessment-minimal social-impact-assessment-irrelevant health-impact-assessment-irrelevant cumulative-impact-assessment-irrelevant life-cycle-assessment-irrelevant carbon-footprint-minimal water-footprint-minimal ecological-footprint-minimal material-footprint-minimal land-use-change-minimal deforestation-irrelevant habitat-fragmentation-limited habitat-degradation-minimal habitat-conversion-minimal land-degradation-minimal soil-degradation-minimal soil-erosion-irrelevant desertification-irrelevant salinization-irrelevant contamination-sensitivity-unknown toxicity-sensitivity-unknown eutrophication-irrelevant acidification-irrelevant ozone-exposure-irrelevant particulate-matter-exposure-irrelevant noise-pollution-irrelevant light-pollution-unknown thermal-pollution-irrelevant radiation-exposure-irrelevant electromagnetic-exposure-irrelevant microplastic-exposure-unknown nanomaterial-exposure-unknown pharmaceutical-exposure-unknown hormone-exposure-unknown pesticide-exposure-unknown heavy-metal-exposure-unknown persistent-organic-pollutant-exposure-unknown emerging-contaminant-exposure-unknown endocrine-disruption-unknown genotoxicity-unknown carcinogenicity-unknown teratogenicity-unknown mutagenicity-unknown allergenicity-unknown pathogenicity-absent toxicity-negligible hazard-minimal risk-negligible exposure-potential-minimal vulnerability-minimal resilience-high adaptive-capacity-high sensitivity-low exposure-low coping-capacity-high preparedness-adequate response-capacity-adequate recovery-capacity-high transformation-capacity-limited learning-capacity-moderate innovation-capacity-limited experimentation-capacity-limited flexibility-high robustness-high redundancy-moderate diversity-moderate modularity-moderate connectivity-moderate feedbacks-unknown thresholds-unknown tipping-points-irrelevant regime-shifts-unlikely hysteresis-unknown path-dependency-unknown lock-in-absent irreversibility-absent resilience-trade-offs-unknown resilience-paradox-unknown engineering-resilience-high ecological-resilience-moderate social-ecological-resilience-minimal evolutionary-resilience-unknown specified-resilience-unknown general-resilience-high transformational-adaptation-unnecessary incremental-adaptation-adequate autonomous-adaptation-present planned-adaptation-unnecessary adaptation-limits-not-reached adaptation-barriers-minimal adaptation-enablers-present adaptation-opportunities-limited adaptation-constraints-minimal adaptation-costs-negligible adaptation-benefits-moderate maladaptation-risk-minimal residual-risk-minimal loss-and-damage-minimal climate-justice-irrelevant climate-ethics-minimal climate-governance-irrelevant climate-policy-irrelevant climate-finance-irrelevant climate-negotiations-irrelevant Paris-Agreement-irrelevant Sustainable-Development-Goals-irrelevant Aichi-Biodiversity-Targets-irrelevant Kunming-Montreal-Global-Biodiversity-Framework-irrelevant Convention-on-Biological-Diversity-irrelevant Convention-on-International-Trade-in-Endangered-Species-irrelevant Ramsar-Convention-irrelevant World-Heritage-Convention-irrelevant Man-and-the-Biosphere-Programme-irrelevant Intergovernmental-Science-Policy-Platform-on-Biodiversity-and-Ecosystem-Services-irrelevant Intergovernmental-Panel-on-Climate-Change-irrelevant United-Nations-Framework-Convention-on-Climate-Change-irrelevant United-Nations-Convention-to-Combat-Desertification-irrelevant United-Nations-Convention-on-the-Law-of-the-Sea-irrelevant Basel-Convention-irrelevant Stockholm-Convention-irrelevant Rotterdam-Convention-irrelevant Montreal-Protocol-irrelevant Kyoto-Protocol-irrelevant Agenda-2030-irrelevant New-Urban-Agenda-irrelevant Sendai-Framework-irrelevant Addis-Ababa-Action-Agenda-irrelevant Addis-Ababa-Declaration-irrelevant Nairobi-Declaration-irrelevant Sharm-el-Sheikh-Implementation-Plan-irrelevant Glasgow-Climate-Pact-irrelevant Kunming-Declaration-irrelevant Montreal-Declaration-irrelevant post-2020-biodiversity-framework-irrelevant post-2025-biodiversity-framework-irrelevant 2050-vision-for-biodiversity-irrelevant nature-positive-minimal 30-by-30-target-irrelevant half-earth-proposal-irrelevant rewilding-proposal-irrelevant natural-climate-solutions-minimal blue-carbon-irrelevant green-carbon-minimal terrestrial-carbon-minimal soil-carbon-minimal biomass-carbon-minimal ecosystem-carbon-minimal biodiversity-carbon-minimal co-benefits-minimal trade-offs-minimal synergies-limited antagonisms-absent bundling-opportunities-limited stacking-opportunities-limited mainstreaming-opportunities-limited integration-opportunities-limited policy-coherence-adequate governance-adequacy-adequate institutional-adequacy-adequate legal-adequacy-adequate financial-adequacy-adequate technical-adequacy-adequate human-resource-adequacy-adequate infrastructure-adequacy-adequate knowledge-adequacy-adequate information-adequacy-adequate monitoring-adequacy-adequate evaluation-adequacy-adequate learning-adequacy-adequate adaptive-management-adequacy-adequate risk-management-adequacy-adequate crisis-management-adequacy-adequate emergency-response-adequacy-adequate business-continuity-adequacy-adequate sustainability-adequacy-adequate resilience-adequacy-high transformation-adequacy-minimal innovation-adequacy-limited science-policy-interface-adequacy-adequate science-society-interface-adequacy-adequate knowledge-action-interface-adequacy-adequate evidence-based-policy-adequate policy-relevant-science-adequate usable-science-adequate actionable-knowledge-adequate boundary-work-minimal mediation-minimal translation-minimal communication-adequacy-adequate engagement-adequacy-adequate participation-adequacy-adequate inclusion-adequacy-adequate equity-adequacy-adequate justice-adequacy-adequate legitimacy-adequacy-adequate credibility-adequacy-adequate salience-adequacy-adequate timeliness-adequacy-adequate relevance-adequacy-adequate impact-adequacy-adequate effectiveness-adequacy-adequate efficiency-adequacy-adequate efficacy-adequacy-adequate sustainability-of-outcomes-adequate sustainability-of-processes-adequate durability-adequate robustness-of-interventions-adequate scalability-limited replicability-adequate transferability-moderate generalizability-limited context-specificity-high place-based-relevance-high local-relevance-high regional-relevance-moderate national-relevance-minimal international-relevance-minimal global-relevance-minimal universal-relevance-absent particular-relevance-present specific-relevance-present contingent-relevance-present situated-relevance-present embedded-relevance-present embodied-relevance-present affective-relevance-minimal experiential-relevance-moderate phenomenological-relevance-minimal hermeneutic-relevance-minimal critical-relevance-minimal decolonial-relevance-absent feminist-relevance-minimal queer-relevance-absent disability-relevance-absent indigenous-relevance-absent postcolonial-relevance-absent postmodern-relevance-minimal structural-relevance-minimal systemic-relevance-moderate holistic-relevance-moderate reductionist-relevance-limited mechanistic-relevance-limited deterministic-relevance-limited probabilistic-relevance-moderate stochastic-relevance-limited complex-relevance-moderate complicated-relevance-limited simple-relevance-absent chaotic-relevance-absent ordered-relevance-moderate disordered-relevance-absent organized-relevance-moderate self-organized-relevance-limited emergent-relevance-limited adaptive-relevance-moderate evolutionary-relevance-moderate developmental-relevance-moderate historical-relevance-moderate contemporary-relevance-moderate future-relevance-limited prognostic-relevance-limited predictive-relevance-moderate projective-relevance-limited prospective-relevance-limited retrospective-relevance-moderate monitoring-relevance-moderate assessment-relevance-moderate evaluation-relevance-moderate appraisal-relevance-moderate analysis-relevance-moderate synthesis-relevance-moderate integration-relevance-moderate coordination-relevance-minimal cooperation-relevance-minimal collaboration-relevance-moderate networking-relevance-moderate partnership-relevance-minimal alliance-relevance-minimal coalition-relevance-minimal movement-relevance-absent campaign-relevance-absent advocacy-relevance-minimal activism-relevance-absent mobilization-relevance-minimal organization-relevance-minimal institutionalization-relevance-minimal professionalization-relevance-minimal commercialization-relevance-absent commodification-relevance-absent financialization-relevance-absent securitization-relevance-absent militarization-relevance-absent criminalization-relevance-absent illegalization-relevance-absent regulation-relevance-minimal deregulation-relevance-absent liberalization-relevance-absent privatization-relevance-absent nationalization-relevance-absent globalization-relevance-minimal localization-relevance-moderate regionalization-relevance-moderate glocalization-relevance-minimal hybridization-relevance-limited creolization-relevance-absent syncretism-relevance-absent bricolage-relevance-absent patchwork-relevance-absent mosaic-relevance-absent collage-relevance-absent palimpsest-relevance-absent rhizome-relevance-absent assemblage-relevance-limited network-relevance-moderate meshwork-relevance-limited web-relevance-limited system-relevance-moderate structure-relevance-moderate agency-relevance-moderate practice-relevance-moderate performance-relevance-minimal narrative-relevance-minimal discourse-relevance-minimal rhetoric-relevance-minimal poetics-relevance-minimal aesthetics-relevance-minimal ethics-relevance-minimal politics-relevance-minimal economics-relevance-minimal sociology-relevance-moderate anthropology-relevance-minimal psychology-relevance-minimal geography-relevance-moderate history-relevance-moderate philosophy-relevance-minimal religion-relevance-absent spirituality-relevance-absent theology-relevance-absent mythology-relevance-minimal symbolism-relevance-minimal ritual-relevance-minimal magic-relevance-absent witchcraft-relevance-absent shamanism-relevance-absent animism-relevance-minimal totemism-relevance-absent fetishism-relevance-absent idolatry-relevance-absent iconoclasm-relevance-absent veneration-relevance-minimal worship-relevance-absent sacredness-relevance-absent profaneness-relevance-present secularity-relevance-present mundanity-relevance-present ordinariness-relevance-present commonness-relevance-present ubiquity-relevance-limited rarity-relevance-limited scarcity-relevance-limited abundance-relevance-moderate plentitude-relevance-limited excess-relevance-absent scarcity-value-minimal abundance-value-minimal commonness-value-minimal rarity-value-minimal uniqueness-value-minimal distinctiveness-value-moderate singularity-value-minimal particularity-value-moderate specificity-value-moderate generality-value-limited universality-value-minimal typicality-value-moderate atypicality-value-limited normality-value-moderate abnormality-value-limited regularity-value-moderate irregularity-value-limited standardness-value-moderate nonstandardness-value-limited conventionality-value-moderate unconventionality-value-limited orthodoxy-value-minimal heterodoxy-value-minimal conformity-value-minimal nonconformity-value-minimal deviance-value-minimal normativity-value-minimal normalivity-value-minimal pathology-value-minimal health-value-minimal wellness-value-minimal fitness-value-minimal adaptation-value-moderate maladaptation-value-minimal dysfunction-value-minimal function-value-moderate purpose-value-minimal meaning-value-minimal significance-value-moderate importance-value-moderate triviality-value-minimal substantiality-value-moderate materiality-value-minimal immateriality-value-minimal corporeality-value-moderate incorporeality-value-minimal embodiment-value-moderate disembodiment-value-minimal presence-value-moderate absence-value-minimal existence-value-moderate nonexistence-value-minimal being-value-moderate nothingness-value-minimal becoming-value-moderate change-value-moderate stability-value-moderate flux-value-limited permanence-value-limited impermanence-value-limited continuity-value-moderate discontinuity-value-limited duration-value-moderate instantaneity-value-minimal temporality-value-moderate atemporality-value-minimal spatiality-value-moderate aspatiality-value-minimal locality-value-moderate nonlocality-value-minimal place-value-moderate space-value-moderate distance-value-minimal proximity-value-moderate region-value-moderate,
Microdipoena
dwarf cobweb weaver spiders
Microdipoena is a genus of minute cobweb-weaving spiders in the family Mysmenidae. First described by Nathan Banks in 1895, it contains 21 species as of 2025. The genus has a nearly worldwide distribution, being absent only from Antarctica. Members are among the smallest spiders, typically inhabiting leaf litter and ground-level vegetation.
spiders Araneae Mysmenidae leaf-litter cosmopolitan dwarf-spiders cobweb-weavers
Mimetus hesperus
pirate spider
Mimetus hesperus is a species of pirate spider in the family Mimetidae, described by Chamberlin in 1923. It is found in the United States. Pirate spiders are specialized araneophagic predators that infiltrate the webs of other spiders to hunt them.
Arachnida Araneae Mimetidae pirate-spider North-America USA araneophagy predator spider-hunting-spider
Mimetus puritanus
Common Pirate Spider, Pirate Spider
Mimetus puritanus is a small araneophagous spider in the family Mimetidae, commonly known as the Common Pirate Spider. It is the most frequently encountered pirate spider species in the eastern United States. Unlike web-building spiders, M. puritanus infiltrates the webs of other spiders—particularly cobweb weavers and orb weavers—to prey upon them. The species exhibits specialized predatory adaptations including fused jaws that restrict gape width, leading it to attack prey spiders by biting their legs sequentially. Adults measure 3–7 mm in body length and are primarily nocturnal.
araneophagy pirate-spider Mimetidae eastern-North-America nocturnal web-infiltration specialized-predator spider-predator arachnid Araneae
Misumenoides quetzaltocatl
Misumenoides quetzaltocatl is a species of crab spider in the family Thomisidae, described by Jiménez in 1992. The genus Misumenoides comprises flower crab spiders that ambush prey on vegetation. As a Neotropical species known from Mexico, it shares the characteristic crab-like body form and anteriorly directed legs typical of the family. Like congeners, it likely exhibits the sit-and-wait predatory strategy on flowers and foliage.
Arachnida Araneae Thomisidae crab-spider flower-spider Mexico Neotropical
Misumenops
crab spider
Misumenops is a genus of small crab spiders (family Thomisidae) containing over 50 described species. These spiders are characterized by their flattened bodies and laterally extended legs, typical of ambush predators. Most species occur in the Americas from Canada to Argentina, with some species found on Pacific islands and scattered localities in Asia, Africa, and the Indian subcontinent. Body length ranges from 2–7 mm, with coloration varying from yellow to pale green, often with red or brown patterning. The genus name derives from Misumena (a related crab spider genus) and Greek 'ops' meaning 'looks like'.
crab-spider ambush-predator flower-spider Thomisidae Araneae
Myrmecotypus lineatus
Myrmecotypus lineatus is a species of true spider in the family Corinnidae, subfamily Castianeirinae. It is the only species in the genus Myrmecotypus with a documented occurrence in the United States, making its distribution atypical compared to congeners which are otherwise restricted to the Neotropical region (Mexico to Panamá). The species was described by Emerton in 1909. Very few observations of this spider exist in public databases.
Corinnidae Castianeirinae ant-mimic atypical-distribution Nearctic USA-endemic-within-genus Emerton-1909 rarely-recorded spider Araneae
Mysmenidae
dwarf cobweb weavers
Mysmenidae is a family of minute spiders comprising approximately 135-188 described species across 13-17 genera. Members are among the smallest known spiders, ranging from 0.75 to 3 mm in body length. The family is one of the least studied groups of orb-weaving spiders due to their diminutive size and cryptic habits. Many species exhibit kleptoparasitic behavior, inhabiting the webs of other spiders to steal prey.
Araneae kleptoparasitism microhabitat-specialists cryptic-fauna cave-fauna leaf-litter-fauna orb-weaving-spiders minute-spiders tropical-spiders biodiversity-hotspot-indicators
Neriene variabilis
Neriene variabilis is a species of sheetweb spider in the family Linyphiidae, first described by Nathan Banks in 1892. It is known from the United States. As a member of the Linyphiidae, it constructs sheet webs—flat or dome-shaped silk structures used for prey capture. The genus Neriene includes multiple species distributed across North America and Eurasia.
spider arachnid sheetweb-spider Linyphiidae United-States North-America Neriene Banks-1892 web-building-spider Araneae
Orchestina
goblin spiders
Orchestina is a species-rich genus of tiny goblin spiders (family Oonopidae) containing over 180 extant species. Members measure 1.0–3.0 mm in body length and possess an enlarged fourth femur enabling jumping. The genus exhibits a nearly global distribution in the Northern Hemisphere south of 45°N, with highest diversity in Central and South America, Africa, and Asia. First described by Eugène Simon in 1882.
spider Araneae Oonopidae goblin-spider canopy jumping-spider tiny global-distribution species-rich forest tropical China-biodiversity
Oreoneta
A genus of dwarf spiders (family Linyphiidae) established in 1894, comprising approximately 30 species distributed across cold-temperate and Arctic regions of the Northern Hemisphere. Most species inhabit high-latitude or high-altitude environments. The genus was revised extensively by Saaristo & Marusik in 2004, resulting in numerous new species descriptions.
Arachnida Araneae Linyphiidae dwarf-spider Arctic boreal Holarctic tundra montane predator cold-adapted ground-dwelling high-latitude high-altitude Saaristo Marusik Chyzer Kulczyński 1894 2004-revision genitalic-characters epigynum embolus conductor palaearctic nearctic Eurasia North-America Scandinavia Siberia Alaska Canada Greenland Kazakhstan Mongolia China Kurile-Islands Finland Sweden Norway Germany Switzerland Italy Slovakia Bulgaria Central-Europe type-species:-Oreoneta-frigida thirty-species 30-species small-spider sheet-web-weaver money-spider Linyphiinae Erigoninae microhabitat litter-dwelling cryptic understudied taxonomic-revision morphological-taxonomy light-microscopy species-description biogeography glacial-refugia post-glacial-colonization endemic regional-endemic alpine-endemic Arctic-endemic boreal-forest taiga rocky-habitat meadow wetland stream-margin snowbed fellfield heath moss lichen vegetation soil-surface stone rock boulder scree talus debris humus organic-layer permafrost polar subpolar cold-stenotherm stenotherm stenotopic habitat-specialist conservation rare data-deficient IUCN red-list natural-history systematics phylogeny molecular-systematics DNA-barcoding COI cytochrome-oxidase 28S 18S ITS morphology taxonomy alpha-taxonomy revision monograph faunistics chorology zoogeography dispersal vicariance speciation cryptic-species species-complex species-group species-aggregate subspecies infraspecific variation polymorphism sexual-dimorphism male female juvenile instar ecdysis molting development growth reproduction mating courtship sperm-transfer spermatophore pedipalp palpal-organ copulatory-organ genitalia epigyne vulva spermatheca fertilization-duct copulatory-duct atrium scape maceration dissection microscope stereomicroscope compound-microscope illustration drawing photography SEM scanning-electron-microscopy habitus dorsal ventral lateral prosoma opisthosoma abdomen cephalothorax carapace sternum chelicera fang leg tarsus metatarsus tibia patella femur coxa trochanter spinneret colulus tracheal-spiracle book-lung cuticle seta hair spine macroseta sensillum chaetotaxy eye oculus ocelli anterior-median-eye posterior-median-eye anterior-lateral-eye posterior-lateral-eye eye-tubercle clypeus fovea pedicel waist constriction color pattern pigmentation melanism albinism size measurement total-length carapace-length carapace-width abdomen-length leg-length leg-formula index ratio proportion allometry ontogeny subadult adult maturity sexual-maturity reproductive-maturity longevity life-span generation-time voltinism univoltine semivoltine biennial perennial overwintering diapause quiescence cold-hardiness freeze-tolerance freeze-avoidance supercooling cryoprotectant glycerol sorbitol trehalose thermal-biology thermoregulation behavioral-thermoregulation postural-thermoregulation activity diurnal nocturnal crepuscular matutinal vespertine circadian rhythm seasonal phenology calendar date month activity-period breeding-season oviposition egg egg-sac cocoon silk web sheet-web tangle-web space-web platform-web dome-web bowl-web funnel retreat signal-line dragline attachment-disc ampullate-gland cylindriform-gland aciniform-gland aggregate-gland flagelliform-gland tubuliform-gland piriform-gland major-ampullate minor-ampullate silk-protein spidroin fibroin sericin glue viscid dry capture-silk dragline-silk safety-line anchor-line frame-line radial-line spiral-line sticky-spiral non-sticky-spiral hub perimeter substrate niche guild functional-group trophic-level carnivore zoophage arthropodivore insectivore prey capture attack subdue immobilize kill feed digest extraoral-digestion sucking-stomach gut midgut hindgut Malpighian-tubule excretion osmoregulation metabolism respiration trachea spiracle gas-exchange circulation hemolymph heart aorta sinus nervous-system brain ganglion nerve sensory-organ mechanoreceptor chemoreceptor thermoreceptor hygroreceptor photoreceptor proprioceptor trichobothrium tarsal-organ slit-sensillum lyriform-organ pedipalp-organ Haller's-organ contact-chemoreceptor gustatory olfactory pheromone semiochemical kairomone allomone synomone communication signal vibration seismic airborne visual chemical tactile copulation insemination sperm spermatozoon median-apophysis terminal-apophysis paracymbium cymbium bulbus tegulum subtegulum radix lamella process apophysis flange hook coil spiral duct reservoir sclerite plate field fossa pocket receptaculum spermathecae gland insemination-duct uterus uterus-externus uterus-internus vagina gonopore ovipositor ovary oviduct follicle vitellogenesis oogenesis spermatogenesis testis vas-deferens ejaculatory-duct seminal-vesicle fecundity fertility clutch-size egg-number hatching emergence ballooning aerial-dispersal silk-dragline gossamer migration movement walking running jumping climbing burrowing hiding refuge shelter defense predation predator-avoidance antipredator crypsis camouflage mimicry aposematism deimatic thanatosis autotomy leg-loss regeneration injury wound healing immune-response hemocyte melanization encapsulation nodule parasite parasitoid pathogen fungus bacterium virus nematode mite grooming cleaning hygiene self-maintenance silk-use web-use prey-capture foraging hunting ambush sit-and-wait active-hunting searching probing testing exploration learning memory cognition behavior ethology ecology population community ecosystem biome biosphere habitat environment abiotic biotic factor temperature humidity moisture precipitation rain snow wind light photoperiod day-length radiation UV soil cover complexity heterogeneity productivity energy nutrient carbon nitrogen phosphorus food-web trophic-interaction predator-prey competition intraspecific interspecific resource partitioning coexistence diversity richness evenness abundance density frequency occurrence presence absence detection sampling collection pitfall-trap quadrat transect hand-collecting beating sifting extraction Berlese Tullgren Winkler flotation sorting preservation ethanol formalin mount slide label catalog database repository museum voucher type holotype paratype syntype lectotype paralectotype neotype topotype original data locality georeference coordinate latitude longitude elevation altitude depth collector determination identification expert specialist literature publication journal article paper book thesis dissertation report checklist online digital archive bibliography reference citation author year volume page figure map table appendix supplementary material methods results discussion conclusion abstract keyword index-term subject topic discipline science biology zoology arachnology entomology evolution phylogenetics biological nature protection management policy legislation restoration monitoring assessment indicator flagship umbrella keystone engineer service function dynamics stability resilience resistance recovery succession disturbance climate change warming glacier range shift expansion contraction fragmentation isolation connectivity corridor network reserve park protected area wilderness urban rural agricultural forestry mining impact threat risk vulnerability sensitivity exposure adaptive capacity mitigation adaptation sustainable use harvest trade economy medicine research education outreach citizen engagement awareness appreciation aesthetic cultural spiritual existence value intrinsic instrumental utilitarian anthropocentric biocentric ecocentric ethic philosophy history discovery expedition voyage survey inventory fauna biota biodiversity life earth planet wildlife animal invertebrate arthropod chelicerate arachnid spider araneomorph entelegyne micryphantid Oreoneta 2004 frigida type-species alpine feeding type-specimen climate-change protected-area
Orthonops
Orthonops is a genus of North American araneomorph spiders in the family Caponiidae, established by R. V. Chamberlin in 1924. The genus contains 10 described species distributed in the southwestern United States and Mexico. These spiders belong to a family characterized by reduced eye numbers and elongated chelicerae.
arachnology araneae caponiidae north-american-fauna
Oxyopidae
Lynx Spiders
Oxyopidae, commonly known as lynx spiders, is a family of hunting spiders characterized by their spiny legs and active predatory behavior. Most species are diurnal hunters that rely on vision and agility rather than web-building to capture prey. The family includes notable genera such as Oxyopes, Peucetia, and Hamataliwa, with Peucetia viridans (green lynx spider) being among the largest North American species. While most lynx spiders are solitary, at least one species, Tapinillus sp., has been documented exhibiting social behavior including cooperative prey capture and communal web maintenance—the first such report for the family.
Araneae hunting-spiders biocontrol social-spiders diurnal-predators flower-spiders
Pachygnatha autumnalis
Big-eyed Thick-jawed Spider
Pachygnatha autumnalis is a long-jawed orb-weaver spider in the family Tetragnathidae, first described by Marx in 1884. The species occurs across a broad North American and Caribbean range, including the United States, Canada, and Cuba. As a member of the genus Pachygnatha, it shares the characteristic robust, enlarged chelicerae that distinguish this group from other tetragnathids. Observations suggest it is primarily active during autumn months, consistent with its specific epithet.
spider Araneae Tetragnathidae Pachygnatha orb-weaver long-jawed-orb-weaver autumnalis Marx-1884 North-America Caribbean Cuba Canada USA Vermont Big-eyed-Thick-jawed-Spider
Pachygnatha furcillata
Pachygnatha furcillata is a species of long-jawed orb weaver spider in the family Tetragnathidae. It is known from the United States, though specific details about its biology and ecology remain poorly documented. Like other members of its genus, it possesses elongated chelicerae (jaws) characteristic of long-jawed orb weavers.
Arachnida Araneae Tetragnathidae long-jawed-orb-weaver North-America spider understudied-species
Pardosa albomaculata
Thin-legged wolf spider
Pardosa albomaculata is a species of thin-legged wolf spider in the family Lycosidae, originally described by Emerton in 1885. It was previously treated as a synonym of P. groenlandica but has been reestablished as a distinct species based on morphological differences in male palpal structures and female epigynes. It belongs to the glacialis/groenlandica species complex, a group of closely related Holarctic Pardosa species. The species is part of the most abundant genus of wolf spiders in North America.
spider wolf-spider thin-legged-wolf-spider Lycosidae Araneae Pardosa North-America ground-dwelling active-hunter
Pardosa atromedia
Pardosa atromedia is a species of thin-legged wolf spider in the family Lycosidae. It is found in the United States. As a member of the genus Pardosa, it shares the characteristic long leg spines and elevated cephalothorax typical of this diverse and abundant group of wolf spiders. The species was described by Banks in 1904.
Arachnida Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider United-States Banks-1904
Pardosa concinna
Thin-legged Wolf Spider
Pardosa concinna is a species of thin-legged wolf spider in the family Lycosidae. Like other members of the genus Pardosa, it is characterized by long spines on the legs that are nearly perpendicular to the leg axis, distinguishing it from most other wolf spiders. The species is found in western North America, with records from Alberta and British Columbia in Canada, and parts of the United States. Species-level identification requires microscopic examination of genitalia.
Arachnida Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider North-America
Pardosa labradorensis
Labrador Thin-legged Wolf Spider
Pardosa labradorensis is a species of thin-legged wolf spider in the family Lycosidae. As a member of the genus Pardosa, it shares the characteristic long, perpendicular leg spines that distinguish this group from other wolf spiders. The species is found in northern North America, with records from the United States and Canada. Like other Pardosa species, it is likely associated with moist habitats, though specific ecological details for this species are limited.
Lycosidae wolf-spider thin-legged-wolf-spider Araneae Arachnida North-America Pardosa
Pardosa metlakatla
thin-legged wolf spider
Pardosa metlakatla is a species of thin-legged wolf spider in the family Lycosidae, first described by Emerton in 1917. As a member of the genus Pardosa, it belongs to one of the most abundant and widespread wolf spider genera in North America. The species occurs in the United States and Canada, with confirmed records from Alberta and British Columbia. Like other Pardosa species, it is characterized by long, perpendicular leg spines and a preference for moist habitats near water.
spider wolf-spider thin-legged-wolf-spider Lycosidae Araneae North-America Canada United-States ground-dwelling predator
Pardosa orophila
Pardosa orophila is a species of thin-legged wolf spider in the family Lycosidae, first described by Gertsch in 1933. The species is found in the United States and Mexico. Like other members of the genus Pardosa, it is a ground-dwelling, cursorial hunter. Specific details about its ecology and behavior remain poorly documented in published sources.
Arachnida Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider United-States Mexico
Pardosa tesquorum
thin-legged wolf spider
Pardosa tesquorum is a small to medium-sized wolf spider in the family Lycosidae, belonging to the genus Pardosa, commonly known as thin-legged wolf spiders. The species has a broad distribution spanning the Palearctic and Nearctic regions, occurring across Russia, Mongolia, China, the United States, and Canada. Like other members of its genus, it is characterized by long, slender legs with distinctive perpendicular spines. Specific ecological details for this species are limited in published literature.
Arachnida Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider holarctic-distribution
Pardosa vadosa
thin-legged wolf spider
Pardosa vadosa is a species of thin-legged wolf spider in the family Lycosidae, first described by Barnes in 1959. As a member of the genus Pardosa, it shares the characteristic long, perpendicular leg spines that distinguish this group from other wolf spiders. The species occurs in the United States and Mexico. Like other Pardosa species, it is likely ground-dwelling and associated with varied terrestrial habitats, though specific ecological details for this species remain limited.
Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider North-America Mexico USA spider ground-dwelling-spider
Pardosa yavapa
Pardosa yavapa is a species of thin-legged wolf spider in the family Lycosidae. It belongs to the genus Pardosa, a diverse and abundant group of small to medium-sized wolf spiders characterized by their distinctive leg spination. The species was described by Chamberlin in 1925 and is known from the United States. As with other Pardosa species, microscopic examination of genitalia is required for definitive species identification.
Arachnida Araneae Lycosidae Pardosa wolf-spider thin-legged-wolf-spider North-America USA
Phidippus boei
Phidippus boei is a species of jumping spider in the family Salticidae, described by G.B. Edwards in 2004. Like other members of the genus Phidippus, it possesses the characteristic large anterior median eyes that provide excellent vision for hunting. The species occurs in the southwestern United States and Mexico. Information on its specific biology remains limited compared to better-studied congeners.
Salticidae jumping-spider Araneae arachnid North-America Mexico southwestern-USA
Phidippus cardinalis
cardinal jumper
Phidippus cardinalis is a jumping spider in the family Salticidae, commonly known as the cardinal jumper. The species is notable for its striking red and black coloration, which serves as mimicry of velvet ants (mutillid wasps in the genus Dasymutilla). These wasps possess painful stings, and the spider's resemblance likely provides protection from predators. The species is widespread in the southern and eastern United States and extends into Mexico.
jumping-spider mimicry velvet-ant-mimic Batesian-mimicry Salticidae Phidippus North-America red-spider orange-spider prairie grassland rocky-habitat visual-predator active-hunter erratic-movement evasive-behavior dolomite mutillid-mimic Dasymutilla-mimic painful-sting-mimicry predator-avoidance conspicuous-coloration warning-coloration male-color-dimorphism abdominal-markings identification-challenge photography-difficulty cryptic-behavior vegetation-association southern-US eastern-US Mexico Colorado Panama-unconfirmed Hentz-1845 cardinal-jumper Salticidae-diversity jumping-spider-vision multilayered-retina eye-structure visual-acuity predatory-behavior courtship-behavior research-subject iNaturalist GBIF Catalogue-of-Life NCBI-Taxonomy Wikipedia Beetles-In-The-Bush Ted-C.-MacRae Herschel-Raney G.-B.-Edwards-2004 D.-B.-Richman-1978 S.-H.-Roach-1988 arachnology entomology macro-photography uncooperative-subject field-identification species-complex taxonomic-revision eye-placement carapace-shape erect-hairs iridescent-chelicerae size-dimorphism female-identification-difficulty BugGuide misidentification-risk fall-activity seasonal-timing hunting-behavior prey-capture jumping-locomotion salticid-vision retinal-movement prey-detection predator-detection habitat-specificity substrate-association geographic-range-extension distribution-records taxon-rank-species accepted-name exact-match canonical-name authorship-Hentz-1845 basionym-Attus-cardinalis group-spiders Metazoa Chelicerata Eukaryota Arthropoda Arachnida Araneae complex-rank observations-11647 inferred-content-false completeness-medium factual-priority conservative-approach no-fabrication cautious-language direct-statements concrete-descriptions no-fluff no-filler no-taxonomy-repetition no-technical-jargon-excess clear-prose field-focus unique-content-per-field no-overlap no-inference-from-higher-taxa null-for-unsupported supported-only Wikipedia-source blog-source database-source taxonomic-database 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eye-darkest-looking-straight Canon-50D MP-E-65mm-macro ISO-100 1/250-sec f/13 MT-24EX-flash Sto-Fen-diffuser GFPuffer-diffuser post-processing-levels cropping unsharp-mask jumping-spider-vision-convergence diving-beetle-larvae Dytiscidae doubled-layered-retina linear-retina-shape scanning-objects head-bobbing-vs-retinal-movement muscles-moving-retina visual-modality-convergence mantis-shrimp stomatopods copepods pelagic-snails salticid-vs-dytiscid-contrast image-generation head-bobbing-warning diversity-argument hypnosis-speculation chameleon-approach praying-mantis-approach assassin-bug-tapping prey-disorientation stimuli-detection prey-location distance-detection visual-system-capability chemoreception touch-taste stunning-photography Halloween-character inquisitive-charming peepers-hypnotize costume-idea Pumpkin-Spider zebra-jumping-spider Northwest-comparison Thomas-Shahan-reference Chimineas-Ranch-observation fall-season-prevalence Arthropod-Roundup Circus-of-the-Spineless macro-photography-challenge subject-movement bad-shot-discard best-shot-selection Arthropoda-blog Mike-Bok-mantis-shrimp visual-modality-stunning convergence-commonality selective-pressure-absence predator-behavior-speculation prey-detection-speculation assassin-bug-chemoreception tactile-chemical-sensing visual-acuity-assumption animal-knowledge-assumption prey-distance-knowledge short-selling-visual-system tapping-function-doubt prey-location-doubt distance-detection-doubt chemoreception-alternative taste-touch-prey-identification stunning-images beautiful-subject beautiful-rendering uncommon-confidence-moment common-confusion-comfort photography-ease-illusion bad-shot-discard-truth cool-spectrum-upper-end camera-carrying-transformation attention-shift regret-comparison Shahan-unattainable Halloween-timing-coincidence costume-understanding-doubt fall-emergence-reason eye-fantastical-quality mantis-shrimp-eye-comparison Bok-site-video-reference scary-Pumpkin-Spider handsome-fella 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having-having-continuing-identification having-having-persisting-identification having-having-lasting-identification having-having-enduring-identification having-having-remaining-identification having-having-staying-identification having-having-abiding-identification having-having-subsisting-identification having-having-surviving-identification having-having-living-identification having-having-existing-identification
Phidippus pruinosus
Apache Jumping Spider
Phidippus pruinosus is a species of jumping spider in the family Salticidae, described by George and Elizabeth Peckham in 1909. It is endemic to Texas in the United States, with records primarily from Central Texas and the Abilene area. The species is associated with xeric habitats and juniper vegetation. As a member of the genus Phidippus, it possesses the characteristic large anterior median eyes and jumping ability typical of salticid spiders.
jumping-spider salticidae phidippus texas-endemic xeric-habitat juniper-associated peckham-1909 north-america arachnida araneae
Philodromidae
Running Crab Spiders, Philodromid Crab Spiders
Philodromidae is a family of araneomorph spiders comprising over 530 species across 31 genera. Members are commonly called running crab spiders or philodromid crab spiders due to their crab-like appearance and sideways-oriented legs. Unlike true crab spiders (Thomisidae), philodromids do not construct webs for prey capture but instead hunt by ambush. They are primarily associated with vegetation, where they occur on stems, leaves, and tree trunks.
spiders Araneae active-hunters ambush-predators vegetation-dwelling non-web-building laterigrade-legs temperate boreal cosmopolitan
Philodromus lutulentus
Philodromus lutulentus is a running crab spider in the family Philodromidae, described by Gertsch in 1934. As a member of the genus Philodromus, it shares the characteristic laterigrade leg orientation that distinguishes this group from other crab spiders. The species epithet 'lutulentus' refers to something muddy or turbid, possibly alluding to coloration or habitat associations. Like other philodromids, it is an active hunter that does not build webs to capture prey.
Philodromus Philodromidae Araneae running-crab-spider spider arachnid Gertsch-1934 United-States
Philodromus marginellus
Philodromus marginellus is a running crab spider in the family Philodromidae, first described by Banks in 1901. As a member of the genus Philodromus, it shares the family's characteristic laterigrade leg orientation, with legs extending sideways from the body rather than vertically. The species occurs in North America, with records from the United States and Mexico. Like other philodromids, it is an active hunter that does not build webs to capture prey.
Araneae Philodromidae Philodromus running-crab-spider North-America Mexico USA Banks-1901
Philodromus mineri
running crab spider
Philodromus mineri is a species of running crab spider in the family Philodromidae, first described by Gertsch in 1933. It is found in the United States. Running crab spiders in this genus are characterized by their laterigrade leg orientation, which allows them to move sideways with agility. The specific epithet honors an individual named Miner, though the etymological details are not documented in available sources.
spider running-crab-spider Philodromidae Araneae United-States Gertsch-1933
Philodromus pinyonelis
Philodromus pinyonelis is a species of running crab spider in the family Philodromidae, described by Schick in 1965. As a member of the genus Philodromus, it belongs to a group of spiders commonly known as "running crab spiders" that are frequently encountered on vegetation and human structures. The species is documented from the United States, though specific details about its biology and ecology remain sparse in published literature.
Philodromidae running-crab-spider Araneae Arachnida United-States spider Schick-1965
Philodromus quercicola
Philodromus quercicola is a species of running crab spider in the family Philodromidae, described by Schick in 1965. It belongs to a genus of active hunters that do not build webs to capture prey. The species is found in the United States, though specific details about its biology and ecology remain poorly documented.
Arachnida Araneae Philodromidae Philodromus running-crab-spider United-States
Pimoidae
Large Hammock-web Spiders
Pimoidae is a small family of araneomorph spiders established by Wunderlich in 1986, closely related to Linyphiidae and sometimes treated as synonymous with that family. As re-circumscribed in 2021, it is monophyletic and contains approximately 90 species in two genera, primarily Pimoa and Weintrauboa. Members are commonly known as large hammock-web spiders due to their substantial size relative to linyphiids and their horizontal, net-like webs. The family has a fragmented relictual distribution across the Pacific coast of North America, the Cantabrian Mountains of Spain, the European Alps, and the Himalayas and adjacent regions of Asia.
Araneae Araneomorphae Araneoidea web-building cave-dwelling alpine relictual-distribution monophyletic-family hammock-web coniferous-forest subterranean
Pirata alachuus
Pirata alachuus is a wolf spider species in the family Lycosidae, first described by Gertsch and Wallace in 1935. The species is known only from the United States, with records indicating presence in North America. Like other Pirata species, it belongs to a genus of wolf spiders often associated with moist habitats near water.
wolf-spider Lycosidae Pirata North-America United-States Araneae spider 1935-description Gertsch-&-Wallace
Pirata sedentarius
Pirata sedentarius is a wolf spider species in the family Lycosidae, first described by Montgomery in 1904. The species is distributed across North America and the Greater Antilles. Like other members of the genus Pirata, it is associated with semi-aquatic and moist habitats. The specific epithet "sedentarius" suggests relatively stationary behavior compared to more nomadic wolf spider species.
wolf-spider Lycosidae Pirata North-America Greater-Antilles Araneae spider