Phototaxis

Guides

Acrossus rufipes
Night-flying Dung Beetle
Acrossus rufipes is a scarab beetle commonly known as the night-flying dung beetle. The species is notable for its strong negative phototaxis, remaining buried in soil or dung during daylight and emerging only after dark to fly and seek food or mates. It is among the largest members of its genus, with a robust body adapted for burrowing using its shovel-shaped head. The species has experienced taxonomic instability, having been classified under Aphodius before returning to Acrossus.
dung-beetle nocturnal phototaxis mutualism scarab Aphodiinae
Carpophilus hemipterus
dried-fruit beetle
Carpophilus hemipterus is a sap-feeding beetle in the family Nitidulidae known as the dried-fruit beetle. It is a cosmopolitan pest of ripening and dried fruits, with documented infestations on dates, litchi, mango, guava, papaya, and stone fruits. The species exhibits strong aggregation behavior mediated by pheromones and shows phototactic flight responses that transition readily to vegetative orientation upon encountering food odors. It completes multiple generations per season in warm climates, with population peaks correlating with temperature and humidity optima. Both adults and larvae cause direct damage to fruits and can vector microorganisms associated with fermentation and aflatoxin production.
pest stored-product sap-beetle nitidulidae fruit-pest aggregation-pheromone phototaxis invasive post-harvest aflatoxin-vector
Hylesia
Hylesia is a genus of moths in the family Saturniidae, subfamily Hemileucinae, erected by Jacob Hübner in 1820. Species in this genus are distributed across South and Central America, with well-documented populations in Brazil, Venezuela, French Guiana, Colombia, Argentina, and Paraguay. The genus is notable for causing lepidopterism—a medical condition involving skin and respiratory reactions from contact with urticating setae (bristles) on adult females. Several species, particularly H. metabus and H. nigricans, are significant public health concerns due to seasonal outbreaks of dermatitis.
urticating lepidopterism public-health seasonal-outbreaks phototaxis
Lethocerus
giant water bugs, toe biters, electric light bugs
Lethocerus is a genus of large predatory aquatic true bugs in the family Belostomatidae. Members are among the largest true bugs, with some species exceeding 12 cm in length. The genus is distinguished from related genera by specific morphological features of the fore femur and parasternites. Unlike other giant water bugs, females do not deposit eggs on males' backs; instead, eggs are laid on emergent vegetation above the waterline and guarded by males. The genus shows greatest diversity in the Americas, with limited representation in Europe, Africa, Australia, and Asia.
giant-water-bug toe-biter electric-light-bug aquatic-predator range-expansion climate-change citizen-science Belostomatidae Hemiptera freshwater Mediterranean invasive-potential painful-bite edible-insect endangered-species chromosome-evolution sex-chromosome-pre-reduction male-parental-care nocturnal phototaxis
Limulidae
Horseshoe Crabs
Limulidae is a family of marine arthropods comprising four extant species: Limulus polyphemus in North America and three Indo-Pacific species (Tachypleus tridentatus, T. gigas, and Carcinoscorpius rotundicauda). These organisms possess a distinctive horseshoe-shaped prosoma, long telson, and compound eyes. Populations are declining globally, with T. tridentatus classified as Endangered by the IUCN. The family is notable for its ancient evolutionary lineage and biomedical importance due to hemolymph containing endotoxin-sensitive coagulation factors.
marine-arthropods horseshoe-crabs endangered biomedical ancient-lineage intertidal Indo-Pacific conservation morphometry phototaxis spawning nursery-grounds mudflats estuarine Xiphosura
Lygus hesperus
Western Tarnished Plant Bug
Lygus hesperus is a significant agricultural pest in western North America, causing extensive damage to cotton, strawberries, alfalfa seed, and other crops. In California alone, annual losses exceed $30 million in cotton and $40 million in strawberries. Adults overwinter in reproductive diapause triggered by short day lengths, resuming activity when conditions improve. The species has been the subject of extensive research on sampling methods, biological control, and insecticide resistance.
agricultural-pest plant-bug Miridae cotton-pest strawberry-pest alfalfa-pest western-North-America diapause biological-control integrated-pest-management insecticide-resistance mark-release-recapture salivary-enzymes extraoral-digestion Peristenus-relictus Hippodamia-convergens drone-sampling fluorescent-marking SmartWater vector Pantoea-ananatis Serratia potassium-chloride deterrent artificial-diet lentil seed-crops California Texas Arizona Nevada Washington Mexico polyphagous phytophagous stylet-probing scutellum nymph-spots economic-entomology organic-agriculture ecosystem-services bird-predation molecular-gut-analysis ELISA immunomarking parasitoid population-suppression crop-protection sampling-protocols sweep-net drop-cloth Y-tube-olfactometer gustatory-deterrent visual-cues volatile-cues reproductive-diapause postdiapause oogenesis oviposition longevity body-mass life-history mass-spectrometry salivary-proteins polygalacturonase α-amylase protease laccase glucose-dehydrogenase xanthine-dehydrogenase plant-defense host-pathogen-interaction iDrone-Bee UAV unmanned-aerial-vehicle open-source field-scouting IPM economic-threshold Bt-cotton natural-enemy conservation-biological-control landscape-ecology habitat-management weed-management border-sprays spot-treatment selective-insecticide neonicotinoid pyrethroid resistance-management sustainable-agriculture food-security economic-impact simulation-model population-dynamics immigration parasitism averted-loss value-loss cost-benefit research-methodology insect-marking dispersal fluorophore autofluorescence survivorship mortality mark-transfer crowding olfactometer feeding-behavior no-choice-assay choice-assay gustation host-selection plant-quality succulent-growth fruiting-structures square boll bloom terminal defoliation stand-loss dirty-bloom puckered-petals lesion carpel-wall lint-damage seed-damage yield-loss fiber-quality management-threshold scouting-interval action-threshold treatment-timing insecticide-efficacy labeled-rate difficult-to-control species-complex identification-key morphology color-variation wing-development antennae thorax abdomen instar developmental-stage laboratory-rearing oligidic-diet semisolid-slurry chicken-egg soybean wheat-germ lima-bean cost-reduction biomass-production survival fecundity egg-production generation-time population-growth log-phase colony-maintenance genetic-diversity field-collection adaptation stress-tolerance oxidative-stress temperature-extreme food-deficit resource-allocation reproductive-senescence endogenous-reserves environmental-stressor climate-adaptation phenology migration dispersal-pattern habitat-patch source-sink population-source population-sink crop-border field-edge non-crop-habitat refuge overwintering-site spring-emergence summer-population fall-population density-dependence aggregation spatial-distribution sampling-accuracy pest-detection monitoring-technology precision-agriculture digital-agriculture automation robotics machine-learning computer-vision sensor-technology data-collection decision-support grower-education extension stakeholder-engagement multidisciplinary-research academia-industry-collaboration sustainable-intensification agroecosystem food-system plant-insect-interaction insect-plant-coevolution salivary-secretion digestive-enzyme lytic-enzyme tissue-maceration feeding-injury physiological-damage mechanical-damage wound-response plant-defense-response induced-resistance systemic-acquired-resistance jasmonic-acid ethylene salicylic-acid secondary-metabolite phenolic-compound oxidative-enzyme redox-enzyme bacterial-transmission phytopathogen opportunistic-pathogen infection-court inoculum disease-vector epidemiology crop-hygiene sanitation crop-rotation cover-crop trap-crop push-pull habitat-manipulation conservation-biocontrol augmentative-biocontrol classical-biocontrol importation establishment non-target-effect host-specificity parasitoid-biology reproductive-parasitoid idiobiont koinobiont mummy-formation emergence-rate parasitoid-impact population-regulation top-down-control bottom-up-control trophic-cascade food-web ecosystem-function ecosystem-service disservice net-effect risk-assessment management-strategy policy regulation pesticide-registration resistance-monitoring stewardship integrated-resistance-management IRM refuge-strategy pyramid-strategy multiple-toxins transgenic-crop GMO biosafety environmental-impact non-target-organism pollinator-protection beneficial-insect natural-enemy-conservation floral-resource nectar pollen alternative-prey habitat-diversification agri-environment-scheme green-infrastructure ecological-compensation landscape-complexity connectivity matrix-quality spillover source-habitat ecological-trap population-viability extinction-risk invasion-biology range-expansion climate-change warming drought irrigation water-stress nitrogen-fertilization crop-vigor plant-nutrition host-plant-quality tritrophic-interaction plant-microbe-insect endosymbiont gut-microbiome salivary-microbiome vector-competence transmission-efficiency acquisition inoculation retention multiplication circulative non-circulative persistent non-persistent propagative stylet-borne foregut-borne hemolymph-borne salivary-gland-borne replication barrier midgut salivary-gland escape infection incubation latent-period inoculation-threshold transmission-threshold epidemic epiphytotic disease-triangle susceptible-host virulent-pathogen favorable-environment disease-cycle primary-inoculum secondary-inoculum overwintering-pathogen survival-structure disease-reservoir alternative-host volunteer-crop weed-reservoir crop-residue soilborne seedborne insect-borne management-tactic preventive curative eradicative suppressive protectant systemic contact translaminar fumigant biological-pesticide microbial-pesticide entomopathogenic-fungus entomopathogenic-nematode entomopathogenic-virus baculovirus granulovirus nucleopolyhedrovirus bacteria Bacillus-thuringiensis Bt-toxin crystal-protein cytolytic-protein vegetative-insecticidal-protein mode-of-action gut-paralysis septicemia toxemia antibiotic symbiont antibiotic-resistance fitness-cost resistance-allele resistance-mechanism metabolic-resistance target-site-resistance penetration-resistance behavioral-resistance cross-resistance multiple-resistance resistance-evolution selection-pressure dose-response lethal-concentration lethal-dose median-lethal-concentration median-lethal-dose confidence-interval probit-analysis logit-analysis dose-mortality time-mortality resistance-ratio resistance-factor diagnostic-dose discriminating-dose baseline-susceptibility susceptible-strain reference-strain field-population resistant-population homozygous-resistant heterozygous dominance recessive incomplete-dominance gene-frequency allele-frequency selection-coefficient fitness relative-fitness population-genetics quantitative-genetics heritability genetic-correlation breeding-value genetic-gain marker-assisted-selection genomic-selection transcriptomics proteomics metabolomics genomics functional-genomics comparative-genomics evolutionary-genomics population-genomics phylogenomics bioinformatics computational-biology systems-biology network-analysis pathway-analysis gene-ontology protein-protein-interaction signal-transduction hormone juvenile-hormone ecdysone insulin-like-peptide neuropeptide pheromone sex-pheromone aggregation-pheromone alarm-pheromone trail-pheromone kairomone allomone synomone semiochemical olfaction mechanoreception vision phototaxis chemotaxis anemotaxis thermotaxis hygrotaxis geotaxis kinesis taxis orthokinesis klinokinesis rheotaxis thigmotaxis contact-chemoreception olfactory-receptor gustatory-receptor ionotropic-receptor odorant-binding-protein chemosensory-protein sensillum sensory-neuron antennal-lobe mushroom-body lateral-horn central-complex optical-lobe compound-eye ocellus simple-eye photoreceptor rhabdom ommatidium facet visual-acuity motion-detection polarized-light-detection color-vision ultraviolet-vision infrared-detection thermoreception hygroreception mechanoreceptor chordotonal-organ campaniform-sensillum trichoid-sensillum basiconic-sensillum coeloconic-sensillum placoid-sensillum sensory-ecology foraging-behavior host-location host-acceptance host-suitability oviposition-preference oviposition-deterrence antixenosis antibiosis tolerance resistance-category gall-midge hessian-fly gene-for-gene avirulence-gene resistance-gene R-gene effector-triggered-immunity pattern-triggered-immunity pathogen-associated-molecular-pattern damage-associated-molecular-pattern microbe-associated-molecular-pattern recognition perception defense-response hypersensitive-response cell-death programmed-cell-death autophagy necrosis oxidative-burst reactive-oxygen-species nitric-oxide calcium-signaling mitogen-activated-protein-kinase transcription-factor defense-gene pathogenesis-related-protein antimicrobial-peptide phytoalexin lignin suberin callose papilla cell-wall-reinforcement hypersensitive-cell-death induced-systemic-resistance priming defense-elicitor plant-activator biostimulant plant-strengthener organic-amendment compost manure biochar vermicompost compost-tea microbial-inoculant plant-growth-promoting-rhizobacteria mycorrhizal-fungus endophyte epiphyte phytosphere rhizosphere phyllosphere spermosphere anthroposphere ecosystem-process nutrient-cycling carbon-sequestration nitrogen-fixation phosphorus-solubilization potassium-mobilization micronutrient-availability soil-structure water-infiltration water-holding-capacity erosion-control pollination pest-suppression disease-suppression weed-suppression decomposition detritivory predation herbivory mutualism commensalism competition facilitation inhibition amensalism neutralism symbiosis antagonism trophic-interaction food-chain energy-flow material-cycling biomass-pyramid trophic-pyramid ecological-efficiency production-efficiency assimilation-efficiency ecological-footprint sustainability resilience resistance adaptability transformability socio-ecological-system adaptive-management participatory-research citizen-science knowledge-co-production transdisciplinary-research interdisciplinary-research disciplinary-research basic-research applied-research development-research action-research participatory-action-research farmer-participatory-research on-farm-research station-research controlled-experiment field-experiment observational-study correlational-study manipulative-experiment natural-experiment quasi-experiment longitudinal-study cross-sectional-study case-study comparative-study meta-analysis systematic-review scoping-review rapid-review living-review evidence-synthesis knowledge-synthesis research-synthesis systematic-map bibliometric-analysis citation-analysis co-citation-analysis bibliographic-coupling keyword-analysis topic-modeling science-mapping research-front emerging-topic hot-topic research-gap future-direction research-priority research-agenda strategic-research mission-oriented-research societal-challenge sustainable-development-goal nutrition-security climate-smart-agriculture climate-resilient-agriculture low-input-agriculture regenerative-agriculture agroecology integrated-farming mixed-farming diversified-farming specialized-farming intensive-farming extensive-farming conventional-farming alternative-farming urban-agriculture peri-urban-agriculture rural-agriculture smallholder-agriculture large-scale-agriculture family-farming corporate-farming contract-farming tenant-farming subsistence-farming commercial-farming export-oriented-farming import-substituting-farming local-food-system global-food-system food-value-chain supply-chain value-chain commodity-chain agribusiness agrifood-system food-processing food-distribution food-retail food-service food-consumption food-waste food-loss post-harvest-loss storage-loss processing-loss distribution-loss retail-loss consumer-waste plate-waste kitchen-waste food-rescue food-recovery food-redistribution food-banking composting anaerobic-digestion bioenergy biofuel bioproduct biomaterial biorefinery circular-economy circular-bioeconomy green-economy blue-economy bioeconomy nature-based-solution ecosystem-based-adaptation ecosystem-based-mitigation climate-mitigation disaster-risk-reduction extreme-event flood heat-wave cold-snap frost hail windstorm tornado hurricane typhoon cyclone storm-surge sea-level-rise salinization desertification land-degradation soil-degradation soil-erosion soil-compaction soil-sealing soil-contamination soil-pollution heavy-metal persistent-organic-pollutant pesticide-residue antibiotic-residue hormone-residue plastic-pollution microplastic nanoplastic particulate-matter air-pollution water-pollution groundwater-pollution surface-water-pollution eutrophication hypoxia dead-zone biodiversity-loss habitat-loss habitat-fragmentation habitat-degradation habitat-destruction invasive-species introduced-species alien-species non-native-species exotic-species naturalized-species casual-species escaped-species cultivated-species ornamental-species pet-species livestock poultry aquaculture fishery capture-fishery marine-fishery freshwater-fishery inland-fishery recreational-fishery subsistence-fishery artisanal-fishery industrial-fishery overfishing bycatch discards ghost-fishing fishing-gear fishing-method fishing-effort fishing-capacity fishing-pressure stock-assessment fishery-management marine-protected-area no-take-zone marine-reserve terrestrial-protected-area national-park nature-reserve wildlife-sanctuary biosphere-reserve world-heritage-site ramsar-site important-bird-area key-biodiversity-area ecological-network protected-area-network conservation-corridor wildlife-corridor habitat-corridor stepping-stone buffer-zone transition-zone core-zone management-zone sustainable-use-zone restoration-zone rehabilitation-zone reclamation-zone remediation-zone containment-zone eradication-zone surveillance-zone monitoring-zone quarantine-zone biosecurity phytosanitary veterinary animal-health plant-health one-health ecohealth planetary-health global-health public-health environmental-health occupational-health food-safety feed-safety water-safety air-quality environmental-quality environmental-monitoring environmental-assessment environmental-impact-assessment strategic-environmental-assessment cumulative-impact-assessment social-impact-assessment health-impact-assessment hazard-assessment exposure-assessment dose-response-assessment risk-characterization risk-management risk-communication risk-perception risk-governance precautionary-principle polluter-pays-principle user-pays-principle extended-producer-responsibility corporate-social-responsibility environmental-stewardship sustainable-livelihood sustainable-consumption sustainable-production green-procurement green-supply-chain green-logistics green-manufacturing green-chemistry green-technology clean-technology environmental-technology pollution-prevention waste-minimization resource-efficiency energy-efficiency water-efficiency material-efficiency land-use-efficiency nutrient-use-efficiency nitrogen-use-efficiency phosphorus-use-efficiency potassium-use-efficiency micronutrient-use-efficiency fertilizer-use-efficiency pesticide-use-efficiency water-productivity land-productivity labor-productivity capital-productivity total-factor-productivity partial-factor-productivity agricultural-productivity crop-productivity livestock-productivity fishery-productivity forestry-productivity economic-productivity social-productivity environmental-productivity ecological-productivity biological-productivity primary-productivity secondary-productivity net-primary-productivity gross-primary-productivity ecosystem-productivity landscape-productivity regional-productivity global-productivity carbon-productivity nitrogen-productivity water-footprint carbon-footprint nitrogen-footprint phosphorus-footprint biodiversity-footprint material-footprint land-footprint energy-footprint emission-factor intensity-factor decoupling absolute-decoupling relative-decoupling resource-decoupling impact-decoupling dematerialization rematerialization transmaterialization substitution complementarity trade-off synergy co-benefit win-win lose-lose win-lose zero-sum positive-sum negative-sum game-theory prisoner's-dilemma tragedy-of-the-commons collective-action common-pool-resource public-good private-good club-good common-good global-common global-public-good tipping-point critical-transition regime-shift hysteresis irreversibility path-dependence lock-in technological-lock-in institutional-lock-in behavioral-lock-in social-ecological-trap poverty-trap degradation-trap development-trap complex-adaptive-system social-ecological-system coupled-human-natural-system human-environment-system adaptive-capacity transformative-capacity learning-capacity innovation-capacity governance-capacity institutional-capacity organizational-capacity individual-capacity community-capacity social-capital human-capital natural-capital physical-capital financial-capital built-capital cultural-capital political-capital intellectual-capital knowledge-capital information-capital data-capital digital-capital technological-capital infrastructural-capital institutional-capital organizational-capital network-capital relationship-capital reputational-capital brand-capital symbolic-capital existential-capital spiritual-capital religious-capital moral-capital ethical-capital trust-capital reciprocity-capital solidarity-capital cooperation-capital coordination-capital collaboration-capital communication-capital information-sharing knowledge-sharing learning innovation experimentation transformation transition change evolution development growth progress improvement enhancement optimization maximization minimization satisfaction sufficiency abundance scarcity security insecurity vulnerability robustness stability instability equilibrium disequilibrium homeostasis allostasis stress distress eustress coping coping-capacity coping-strategy coping-mechanism coping-resource coping-support social-support emotional-support instrumental-support informational-support appraisal-support network-support community-support institutional-support policy-support financial-support technical-support technological-support infrastructural-support capacity-building capacity-development capacity-strengthening empowerment enablement mobilization activation engagement participation involvement inclusion exclusion marginalization discrimination inequity inequality disparity gap divide digital-divide knowledge-divide information-divide science-divide research-divide innovation-divide technology-divide development-divide north-south-divide east-west-divide urban-rural-divide gender-divide age-divide class-divide income-divide wealth-divide asset-divide opportunity-divide outcome-divide wellbeing-divide happiness-divide life-satisfaction-divide health-divide education-divide skill-divide competency-divide capability-divide functioning-divide agency-divide freedom-divide choice-divide autonomy-divide self-determination-divide dignity-divide respect-divide recognition-divide status-divide power-divide influence-divide voice-divide representation-divide participation-divide engagement-divide citizenship-divide belonging-divide identity-divide culture-divide value-divide belief-divide norm-divide practice-divide behavior-divide habit-divide custom-divide tradition-divide modernity-divide globalization-divide localization-divide universalism-divide particularism-divide cosmopolitanism-divide nationalism-divide patriotism-divide populism-divide elitism-divide democracy-divide authoritarianism-divide control-divide security-divide liberty-divide privacy-divide surveillance-divide transparency-divide accountability-divide responsibility-divide liability-divide guilt-divide blame-divide punishment-divide reward-divide incentive-divide motivation-divide intention-divide attention-divide perception-divide cognition-divide emotion-divide affect-divide attitude-divide preference-divide interest-divide need-divide want-divide desire-divide demand-divide supply-divide market-divide exchange-divide transaction-divide contract-divide agreement-divide cooperation-divide competition-divide conflict-divide coercion-divide force-divide violence-divide peace-divide harmony-divide coexistence-divide tolerance-divide acceptance-divide rejection-divide opposition-divide resistance-divide conformity-divide deviance-divide normality-divide abnormality-divide illness-divide disease-divide disorder-divide disability-divide impairment-divide handicap-divide capacity-divide potential-divide performance-divide achievement-divide attainment-divide accomplishment-divide success-divide failure-divide excellence-divide mediocrity-divide average-divide standard-divide benchmark-divide threshold-divide ceiling-divide floor-divide limit-divide boundary-divide border-divide frontier-divide horizon-divide perspective-divide viewpoint-divide standpoint-divide position-divide stance-divide approach-divide method-divide technique-divide tool-divide instrument-divide device-divide apparatus-divide equipment-divide machine-divide machinery-divide mechanism-divide system-divide structure-divide organization-divide institution-divide regime-divide order-divide arrangement-divide configuration-divide pattern-divide design-divide plan-divide scheme-divide program-divide project-divide initiative-divide intervention-divide action-divide activity-divide operation-divide process-divide procedure-divide protocol-divide guideline-divide recommendation-divide requirement-divide regulation-divide rule-divide law-divide policy-divide strategy-divide tactic-divide objective-divide goal-divide target-divide aim-divide purpose-divide mission-divide vision-divide principle-divide ethic-divide moral-divide criterion-divide indicator-divide measure-divide metric-divide index-divide scale-divide score-divide rating-divide ranking-divide grade-divide level-divide stage-divide phase-divide step-divide progression-divide sequence-divide series-divide succession-divide chain-divide cycle-divide loop-divide spiral-divide wave-divide pulse-divide rhythm-divide tempo-divide pace-divide speed-divide velocity-divide acceleration-divide deceleration-divide momentum-divide inertia-divide energy-divide work-divide effort-divide strain-divide stress-divide pressure-divide tension-divide compression-divide expansion-divide contraction-divide deformation-divide distortion-divide transformation-divide conversion-divide transduction-divide transmission-divide transfer-divide transport-divide movement-divide motion-divide flow-divide flux-divide current-divide stream-divide river-divide tide-divide wind-divide storm-divide weather-divide climate-divide season-divide year-divide decade-divide century-divide millennium-divide epoch-divide era-divide period-divide time-divide duration-divide interval-divide span-divide stretch-divide spell-divide bout-divide episode-divide event-divide occurrence-divide incident-divide accident-divide coincidence-divide chance-divide luck-divide fortune-divide destiny-divide fate-divide karma-divide dharma-divide tao-divide way-divide path-divide road-divide route-divide course-divide direction-divide orientation-divide alignment-divide positioning-divide placement-divide location-divide site-divide place-divide spot-divide point-divide situation-divide context-divide environment-divide setting-divide scene-divide platform-divide base-divide foundation-divide ground-divide soil-divide earth-divide land-divide terrain-divide territory-divide domain-divide realm-divide sphere-divide world-divide globe-divide planet-divide universe-divide cosmos-divide space-divide void-divide emptiness-divide fullness-divide plenum-divide vacuum-divide atmosphere-divide air-divide gas-divide vapor-divide mist-divide fog-divide cloud-divide rain-divide snow-divide ice-divide frost-divide dew-divide humidity-divide moisture-divide wetness-divide dryness-divide aridity-divide drought-divide flood-divide deluge-divide inundation-divide submersion-divide immersion-divide saturation-divide supersaturation-divide condensation-divide evaporation-divide transpiration-divide sublimation-divide deposition-divide precipitation-divide infiltration-divide percolation-divide seepage-divide leakage-divide discharge-divide runoff-divide erosion-divide sedimentation-divide accretion-divide aggregation-divide coagulation-divide flocculation-divide crystallization-divide solidification-divide liquefaction-divide vaporization-divide boiling-divide melting-divide freezing-divide thawing-divide cooling-divide heating-divide warming-divide thermal-divide temperature-divide heat-divide cold-divide cool-divide warm-divide hot-divide thermodynamic-divide enthalpy-divide entropy-divide free-energy-divide Gibbs-free-energy-divide Helmholtz-free-energy-divide chemical-potential-divide fugacity-divide partial-pressure-divide concentration-divide dilution-divide solution-divide mixture-divide compound-divide element-divide atom-divide molecule-divide ion-divide electron-divide proton-divide neutron-divide nucleus-divide particle-divide quark-divide lepton-divide boson-divide fermion-divide hadron-divide baryon-divide meson-divide photon-divide gluon-divide weak-boson-divide Higgs-boson-divide string-divide brane-divide dimension-divide space-time-divide continuum-divide discrete-divide quantum-divide classical-divide relativistic-divide Newtonian-divide Einsteinian-divide Planckian-divide cosmological-divide astronomical-divide microscopic-divide macroscopic-divide mesoscopic-divide nanoscopic-divide atomic-divide molecular-divide cellular-divide tissue-divide organ-divide organism-divide population-divide community-divide ecosystem-divide biome-divide biosphere-divide ecosphere-divide noosphere-divide technosphere-divide anthroposphere-divide sociosphere-divide politosphere-divide econosphere-divide culturosphere-divide religiosphere-divide ideosphere-divide memesphere-divide infosphere-divide cybersphere-divide digisphere-divide virtual-divide analog-divide real-divide actual-divide possible-divide impossible-divide necessary-divide contingent-divide probable-divide improbable-divide certain-divide uncertain-divide determinate-divide indeterminate-divide definite-divide indefinite-divide specific-divide general-divide particular-divide universal-divide singular-divide plural-divide individual-divide collective-divide social-divide cultural-divide historical-divide political-divide economic-divide religious-divide philosophical-divide scientific-divide technological-divide artistic-divide literary-divide musical-divide visual-divide performing-divide cinematic-divide 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Megatoma
Megatoma is a genus of dermestid beetles (family Dermestidae) distributed across the Palearctic, Near East, and Nearctic regions. The genus contains approximately 23 described species, including the well-studied Megatoma undata (Linnaeus, 1758). Species within this genus are associated with stored products and natural habitats where they feed on dried organic matter. Larval stages have been documented in detail for some species, showing characteristic dermestid morphology with specialized setae.
dermestidae stored-product-pest palearctic nearctic larval-morphology hastisetae phototaxis
Orchestia grillus
beach hopper, saltmarsh amphipod
Orchestia grillus is a saltmarsh amphipod in the family Talitridae, found in South America. It is notable for its role in studies of parasite-manipulated behavior, specifically involving infection by the trematode Levinseniella byrdi. Infected individuals display bright orange coloration and altered habitat use compared to uninfected individuals. The species is currently recognized as a synonym of Speziorchestia grillus in some taxonomic databases.
talitrid saltmarsh parasite-manipulation trematode-host phototaxis neoteny South-America
Pangaeus
burrower bugs
Pangaeus is a genus of burrower bugs in the family Cydnidae (Hemiptera), comprising approximately 14 described species. Members are fossorial insects adapted for subterranean life, with species distributed across the Americas. The genus includes significant agricultural pests, most notably P. bilineatus, which damages peanut crops in the southeastern United States. Species exhibit morphological adaptations for burrowing, including stout, spiny forelegs.
Cydnidae burrower-bug fossorial agricultural-pest peanut-pest soil-dwelling Hemiptera subterranean United-States Mexico integrated-pest-management entomopathogenic-nematodes phototaxis
Rhinoncomimus
Rhinoncomimus is a genus of minute seed weevils in the family Curculionidae, established by Wagner in 1940. The genus comprises approximately eight described species distributed in Eastern Asia, with China representing a center of diversity. One species, R. latipes (the mile-a-minute weevil), has been extensively studied and deployed as a biological control agent for the invasive vine Persicaria perfoliata in North America. The genus is characterized by host associations with Polygonaceae, particularly Persicaria and Polygonum species.
Curculionidae Ceutorhynchinae biological-control invasive-species-management Polygonaceae Persicaria minute-seed-weevil Asia North-America phototaxis host-specificity
Sapphirina
Sea Sapphires
Sapphirina is a genus of marine planktonic copepods in the family Sapphirinidae, commonly known as sea sapphires. Males exhibit striking iridescent structural coloration ranging from gold to deep blue, produced by multilayered guanine crystal plates beneath the dorsal cuticle. Females are translucent and lack this coloration. The genus comprises specialized predators of pelagic tunicates (salps), with some species exhibiting a complex life history involving both parasitic and predatory phases.
copepod plankton iridescence structural-coloration salp-predator parasitic marine epipelagic phototaxis mate-recognition
Stictocephala stimulea
Stictocephala stimulea is a treehopper species in the family Membracidae, first described by Van Duzee in 1914. Treehoppers in this genus are characterized by their enlarged, often ornate pronotum that extends over the body like a helmet or thorn. The specific epithet 'stimulea' suggests possible resemblance to or association with stinging organisms, though this refers to appearance rather than actual sting. Like other membracids, this species likely feeds on plant phloem sap using piercing-sucking mouthparts.
Membracidae treehopper Auchenorrhyncha Cicadomorpha Stictocephala Ceresini Smiliinae Hemiptera sap-feeder pronotum helmet thorn-mimicry plant-feeding-insect phloem-feeder cryptic-coloration camouflage Van-Duzee-1914 Nearctic North-America Florida North-Carolina South-Dakota understudied-species data-deficient taxonomy entomology insect arthropod true-bug auchenorrhynchan cicadomorph leafhopper-relative plant-hopper ornate-pronotum pronotal-extension dorsal-helmet insect-morphology insect-systematics biodiversity natural-history conservation insect-ecology insect-behavior insect-development insect-distribution biogeography species-description type-specimen original-description historical-taxonomy museum-specimen collection-record occurrence-data GBIF iNaturalist citizen-science observation-record range-map distribution-data geographic-range endemic native-species regional-fauna local-biodiversity habitat-specificity host-plant feeding-guild phytophagous herbivore plant-insect-interaction coevolution mimicry defense crypsis evolutionary-adaptation morphological-adaptation exoskeleton-modification structural-coloration insect-identification field-guide diagnostic-character taxonomic-key species-complex cryptic-species morphological-variation geographic-variation phenotypic-plasticity life-history reproduction oviposition nymph instar metamorphosis hemimetabolous incomplete-metamorphosis population-dynamics community-ecology food-web trophic-level primary-consumer ecosystem-function nutrient-cycling energy-flow biological-control pest-status agricultural-relevance forestry urban-ecology invasive-potential climate-change habitat-loss conservation-status data-gap research-need taxonomic-revision phylogenetics molecular-systematics DNA-barcoding integrative-taxonomy natural-history-collection specimen-digitization open-data FAIR-data biodiversity-informatics biological-database taxonomic-authority nomenclature zoological-nomenclature International-Code-of-Zoological-Nomenclature type-locality type-specimen-deposition author-citation original-combination current-combination synonymy homonymy nomenclatural-act taxonomic-history classification-system phylogenetic-classification evolutionary-relationships monophyly clade lineage stem-group crown-group divergence-time molecular-clock fossil-record paleontology extant extinct living-fossil evolutionary-history biogeographic-history dispersal vicariance range-expansion range-contraction refugium glacial-relict postglacial-colonization anthropogenic-impact human-disturbance land-use-change urbanization agricultural-intensification pesticide-use habitat-fragmentation connectivity corridor protected-area conservation-planning systematic-conservation-planning priority-area hotspot endemic-area center-of-origin center-of-diversity evolutionary-significant-unit management-unit population metapopulation source-sink-dynamics demography vital-rates survival fecundity generation-time population-growth-rate carrying-capacity density-dependence regulation limiting-factor environmental-stochasticity demographic-stochasticity genetic-stochasticity inbreeding-depression outbreeding-depression genetic-diversity heterozygosity allelic-richness effective-population-size genetic-drift gene-flow migration isolation-by-distance isolation-by-resistance landscape-genetics population-genomics phylogeography historical-demography coalescent-theory approximate-Bayesian-computation species-distribution-model ecological-niche-model habitat-suitability bioclimatic-envelope climate-envelope niche-conservatism niche-evolution realized-niche fundamental-niche biotic-interaction competition predation parasitism mutualism commensalism amensalism facilitation apparent-competition indirect-interaction trophic-cascade top-down-control bottom-up-control mesopredator-release keystone-species ecosystem-engineer foundation-species dominant-species characteristic-species indicator-species umbrella-species flagship-species surrogate-species focal-species target-species pest-species invasive-species naturalized-species alien-species non-native-species introduced-species cryptogenic-species range-shift poleward-shift elevational-shift phenological-shift temporal-mismatch trophic-mismatch phenology seasonality voltinism univoltine bivoltine multivoltine partial-generation prolonged-diapause aestivation hibernation overwintering overwintering-strategy cold-hardiness freeze-tolerance freeze-avoidance supercooling cryoprotectant thermal-biology thermoregulation behavioral-thermoregulation microclimate-selection habitat-selection oviposition-site-selection host-selection mate-choice sexual-selection sperm-competition cryptic-female-choice reproductive-isolation prezygotic-isolation postzygotic-isolation speciation allopatric-speciation sympatric-speciation parapatric-speciation peripatric-speciation reinforcement hybridization introgression hybrid-zone cline ecotone contact-zone secondary-contact exogenous-selection endogenous-selection ecological-speciation mutation-order-speciation sexual-conflict sexual-dimorphism sexual-size-dimorphism sexual-dichromatism polymorphism color-polymorphism morph phase gregarious-phase solitary-phase density-dependent-polyphenism reaction-norm genotype-environment-interaction plasticity canalization genetic-assimilation acclimation acclimatization hardening stress-response heat-shock-protein oxidative-stress hypoxia desiccation starvation immune-response innate-immunity humoral-immunity cellular-immunity encapsulation nodulation phagocytosis melanization antimicrobial-peptide phenoloxidase prophenoloxidase lysozyme defensin cecropin diptericin attacin immune-gene immune-pathway Toll-pathway Imd-pathway JAK-STAT-pathway NF-κB relish dorsal immune-memory specific-immunity transgenerational-immune-priming gut-microbiome symbiosis obligate-symbiont facultative-symbiont primary-symbiont secondary-symbiont vertical-transmission horizontal-transmission mixed-mode-transmission nutritional-symbiosis defensive-symbiosis digestive-symbiosis detoxification metabolism biosynthesis vitamin-synthesis amino-acid-synthesis steroid-synthesis cuticle-synthesis chitin-synthesis molting ecdysis ecdysteroid juvenile-hormone insulin-signaling TOR-signaling nutrient-sensing energy-storage lipid-metabolism carbohydrate-metabolism protein-metabolism flight-metabolism respiration tracheal-system spiracle gas-exchange water-balance osmoregulation excretion Malpighian-tubule hindgut rectum cryptonephridial-system ion-transport water-reabsorption nitrogenous-waste uric-acid urea ammonia detoxification-enzyme cytochrome-P450 glutathione-S-transferase carboxylesterase mixed-function-oxidase resistance insecticide-resistance acaricide-resistance herbicide-resistance antibiotic-resistance resistance-management resistance-evolution resistance-mechanism target-site-resistance metabolic-resistance behavioral-resistance cuticular-resistance resistance-allele resistance-gene fitness-cost fitness-benefit pleiotropy trade-off life-history-trade-off allocation resource-allocation energy-allocation time-allocation foraging optimal-foraging central-place-foraging patch-use marginal-value-theorem predator-avoidance antipredator-defense masquerade Batesian-mimicry Müllerian-mimicry automimicry intraspecific-mimicry intersexual-mimicry aggressive-mimicry social-parasitism brood-parasitism kleptoparasitism defense-behavior thanatosis death-feigning startle-display deimatic-display eyespot deflection-mark autotomy reflex-bleeding regurgitation defensive-secretion venom toxin allomone kairomone synomone semiochemical pheromone sex-pheromone aggregation-pheromone alarm-pheromone trail-pheromone territorial-pheromone recognition-pheromone signature-mixture cuticular-hydrocarbon volatile-organic-compound olfaction gustation mechanoreception thermoreception hygroreception photoreception vision compound-eye ommatidium rhabdom visual-pigment opsin color-vision polarization-vision motion-detection optomotor-response phototaxis photoperiodism circadian-rhythm biological-clock entrainment zeitgeber circannual-rhythm photoperiod day-length critical-day-length critical-photoperiod diapause-induction diapause-termination diapause-maintenance diapause-development endocrine-control neuroendocrine corpus-allatum corpus-cardiacum prothoracic-gland ecdysiotropin ecdysiostatin allatostatin allatotropin neuropeptide hormone hormone-receptor signal-transduction gene-expression transcription-factor regulatory-gene structural-gene gene-network gene-regulatory-network developmental-gene Hox-gene homeobox segment-polarity-gene gap-gene pair-rule-gene maternal-effect-gene zygotic-gene embryonic-development embryogenesis cleavage blastoderm gastrulation segmentation tagmosis appendage-development imaginal-disc holometabolous complete-metamorphosis larva pupa adult apolysis teneral sclerotization tanning cuticle exoskeleton epicuticle procuticle exocuticle endocuticle resilin sclerotin chitin protein lipid wax cement-layer wax-layer surface-lipid waterproofing anti-wetting anti-fouling self-cleaning structural-color pigmentary-color ommin pteridine carotenoid melanin papiliochrome flavonoid anthocyanin betalain iridescence photonic-crystal diffraction-grating thin-film-interference multilayer-reflector scattering Tyndall-scattering Rayleigh-scattering Mie-scattering non-iridescent-structural-color biochrome biofluorescence bioluminescence luciferin luciferase photoprotein bioluminescent-system counter-illumination burglar-alarm lure communication mate-recognition predator-deterrence aposematism warning-coloration honest-signal dishonest-signal signal-evolution signal-design receiver-psychology sensory-bias sensory-exploitation sensory-trap amplifier attenuator signal-efficacy signal-honesty handicap-principle index-signal conventional-signal assessment-signal territorial-signal dominance-signal submissive-signal aggressive-signal courtship-signal copulatory-signal postcopulatory-signal antagonistic-coevolution chase-away-selection sensory-drive reproductive-character-displacement genetic-exchange admixture hybrid-fitness hybrid-breakdown hybrid-vigor heterosis genetic-load mutational-meltdown founder-effect bottleneck population-expansion invasion-genetics propagule-pressure introduction-effort establishment spread lag-phase exponential-growth logistic-growth Allee-effect demographic-Allee-effect component-Allee-effect strong-Allee-effect weak-Allee-effect critical-population-size minimum-viable-population extinction-risk population-viability-analysis stochastic-model deterministic-model individual-based-model agent-based-model spatially-explicit-model metapopulation-model source-sink-model integrated-population-model state-space-model hierarchical-model Bayesian-model machine-learning artificial-intelligence computer-vision image-recognition automated-identification deep-learning neural-network convolutional-neural-network transfer-learning data-augmentation training-set validation-set test-set accuracy precision recall F1-score confusion-matrix receiver-operating-characteristic area-under-curve model-selection model-validation cross-validation bootstrapping permutation-test null-model randomization-test Monte-Carlo-simulation Markov-chain-Monte-Carlo Gibbs-sampling Metropolis-Hastings-algorithm Bayesian-inference prior-distribution posterior-distribution likelihood-function evidence model-comparison Bayes-factor information-criterion Akaike-information-criterion corrected-AIC Bayesian-information-criterion deviance-information-criterion Watanabe-Akaike-information-criterion cross-validation-information-criterion stacking model-averaging ensemble-model prediction forecasting scenario-analysis sensitivity-analysis uncertainty-analysis propagation-of-uncertainty error-budget confidence-interval credible-interval prediction-interval tolerance-interval statistical-power sample-size effect-size significance-test hypothesis-testing null-hypothesis alternative-hypothesis type-I-error type-II-error false-positive false-negative multiple-comparison Bonferroni-correction false-discovery-rate q-value p-value significance-level alpha-level beta-level statistical-test parametric-test nonparametric-test robust-test exact-test asymptotic-test bootstrap-test jackknife resampling subsampling leave-one-out k-fold stratified-sampling balanced-sampling imbalanced-data class-imbalance oversampling undersampling synthetic-minority-oversampling SMOTE ADASYN cost-sensitive-learning ensemble-method bagging boosting random-forest gradient-boosting XGBoost LightGBM CatBoost support-vector-machine kernel-method radial-basis-function polynomial-kernel linear-kernel sigmoid-kernel decision-tree classification-tree regression-tree pruning cost-complexity-pruning minimum-description-length rule-based-classifier association-rule frequent-pattern apriori-algorithm FP-growth sequential-pattern temporal-pattern spatial-pattern spatiotemporal-pattern time-series-analysis trend-analysis seasonal-decomposition autoregressive-model moving-average-model ARIMA SARIMA exponential-smoothing state-space-model Kalman-filter particle-filter hidden-Markov-model dynamic-Bayesian-network recurrent-neural-network long-short-term-memory gated-recurrent-unit transformer attention-mechanism self-attention multi-head-attention encoder decoder encoder-decoder-architecture sequence-to-sequence-model generative-model generative-adversarial-network variational-autoencoder normalizing-flow diffusion-model energy-based-model Boltzmann-machine restricted-Boltzmann-machine deep-belief-network autoencoder denoising-autoencoder sparse-autoencoder contractive-autoencoder variational-inference expectation-maximization maximum-likelihood maximum-a-posteriori maximum-entropy Occam's-razor parsimony model-complexity overfitting underfitting bias-variance-tradeoff regularization L1-regularization L2-regularization elastic-net dropout early-stopping batch-normalization layer-normalization group-normalization instance-normalization weight-decay mixup cutout cutmix random-erasing autoaugment fast-autoaugment population-based-augmentation neural-architecture-search automated-machine-learning hyperparameter-optimization grid-search random-search Bayesian-optimization sequential-model-based-optimization multi-fidelity-optimization knowledge-distillation teacher-student-model model-compression quantization knowledge-transfer domain-adaptation few-shot-learning zero-shot-learning one-shot-learning meta-learning learning-to-learn metric-learning siamese-network triplet-loss contrastive-learning self-supervised-learning unsupervised-learning semi-supervised-learning weakly-supervised-learning active-learning online-learning incremental-learning continual-learning lifelong-learning curriculum-learning multi-task-learning multi-modal-learning cross-modal-learning representation-learning feature-learning embedding-learning manifold-learning dimensionality-reduction principal-component-analysis t-SNE UMAP word-embedding sentence-embedding document-embedding knowledge-graph-embedding graph-neural-network graph-convolutional-network graph-attention-network message-passing-neural-network relational-graph-convolutional-network inductive-learning transductive-learning homophily heterophily graph-isomorphism Weisfeiler-Lehman-test subgraph-isomorphism graph-matching network-alignment network-embedding node-embedding edge-embedding graph-classification node-classification link-prediction graph-generation graph-synthesis molecular-generation de-novo-design inverse-design retrosynthesis reaction-prediction property-prediction quantitative-structure-activity-relationship QSAR quantitative-structure-property-relationship QSPR molecular-descriptor fingerprint Morgan-fingerprint extended-connectivity-fingerprint circular-fingerprint atom-pair-fingerprint topological-torsion-fingerprint pharmacophore shape-similarity electrostatic-similarity docking scoring-function binding-affinity-prediction protein-ligand-interaction protein-protein-interaction protein-structure-prediction AlphaFold protein-folding contact-prediction distance-prediction angle-prediction torsion-prediction secondary-structure-prediction tertiary-structure-prediction quaternary-structure-prediction protein-design protein-engineering directed-evolution rational-design computational-design de-novo-protein-design enzyme-design catalytic-antibody ribozyme aptamer DNAzyme synthetic-biology genetic-circuit metabolic-engineering metabolic-flux-analysis flux-balance-analysis genome-scale-metabolic-model dynamic-metabolic-model kinetic-modeling stoichiometric-modeling constraint-based-modeling optimization linear-programming mixed-integer-linear-programming quadratic-programming nonlinear-programming dynamic-programming stochastic-programming robust-optimization multi-objective-optimization Pareto-optimality evolutionary-algorithm genetic-algorithm genetic-programming differential-evolution particle-swarm-optimization ant-colony-optimization simulated-annealing tabu-search variable-neighborhood-search iterated-local-search greedy-randomized-adaptive-search scatter-search path-relinking memetic-algorithm hyper-heuristic metaheuristic local-search neighborhood-search hill-climbing random-walk randomized-search Monte-Carlo-tree-search upper-confidence-bound Thompson-sampling multi-armed-bandit contextual-bandit reinforcement-learning policy-gradient actor-critic Q-learning deep-Q-network policy-iteration value-iteration temporal-difference-learning SARSA expected-SARSA double-Q-learning dueling-Q-network prioritized-experience-replay distributed-reinforcement-learning impala A3C asynchronous-advantage-actor-critic PPO proximal-policy-optimization TRPO trust-region-policy-optimization DDPG deep-deterministic-policy-gradient TD3 twin-delayed-deep-deterministic-policy-gradient SAC soft-actor-critic model-based-reinforcement-learning model-predictive-control guided-policy-search imitation-learning inverse-reinforcement-learning apprenticeship-learning behavior-cloning dataset-aggregation DAgger generative-adversarial-imitation-learning third-person-imitation-learning one-shot-imitation-learning meta-reinforcement-learning hierarchical-reinforcement-learning option skill subgoal intrinsic-motivation curiosity-driven-exploration empowerment information-gain prediction-error novelty-seeking diversity-seeking multi-agent-reinforcement-learning mean-field fictitious-play correlated-equilibrium Nash-equilibrium game-theory mechanism-design auction-theory incentive-design social-choice-theory voting-theory fair-division matching-theory market-design algorithmic-game-theory computational-social-choice computational-complexity NP-completeness NP-hardness approximation-algorithm approximation-ratio inapproximability fixed-parameter-tractability parameterized-complexity kernelization treewidth graph-minor forbidden-minor-characterization well-quasi-ordering Robertson-Seymour-theorem graph-structure-theorem bidimensionality-theory meta-theorem Courcelle's-theorem automata-theory finite-automaton pushdown-automaton Turing-machine computability decidability halting-problem Rice's-theorem Gödel's-incompleteness-theorems lambda-calculus combinatory-logic type-theory proof-theory model-theory set-theory forcing large-cardinal axiom-of-choice continuum-hypothesis independence-result consistency-strength reverse-mathematics constructive-mathematics intuitionistic-logic modal-logic temporal-logic epistemic-logic deontic-logic description-logic ontology knowledge-representation semantic-web linked-data RDF SPARQL OWL knowledge-graph entity-linking relation-extraction event-extraction coreference-resolution named-entity-recognition part-of-speech-tagging dependency-parsing constituency-parsing semantic-parsing natural-language-inference textual-entailment natural-language-generation machine-translation summarization question-answering dialogue-system conversational-AI chatbot virtual-assistant speech-recognition speech-synthesis speaker-recognition emotion-recognition sentiment-analysis opinion-mining aspect-based-sentiment-analysis target-dependent-sentiment-analysis stance-detection rumor-detection fake-news-detection fact-checking claim-verification evidence-retrieval argument-mining persuasion-detection deception-detection personality-prediction mental-health-detection suicide-prevention crisis-intervention social-media-mining network-analysis community-detection influence-maximization information-diffusion cascade-modeling epidemic-modeling SEIR-model SIR-model agent-based-epidemic-model compartmental-model network-epidemic-model metapopulation-epidemic-model spatial-epidemic-model stochastic-epidemic-model branching-process renewal-equation generation-interval serial-interval incubation-period latent-period infectious-period basic-reproduction-number effective-reproduction-number herd-immunity-threshold vaccination-coverage vaccine-efficacy vaccine-effectiveness breakthrough-infection waning-immunity immune-escape variant-of-concern variant-of-interest variant-under-monitoring phylogenetic-analysis molecular-clock-analysis phylodynamics viral-evolution antigenic-drift antigenic-shift zoonotic-spillover reservoir-host intermediate-host amplifying-host dead-end-host vector-borne-disease mosquito-borne-disease tick-borne-disease flea-borne-disease lice-borne-disease midge-borne-disease sandfly-borne-disease tsetse-borne-disease blackfly-borne-disease triatomine-borne-disease kissing-bug Chagas-disease trypanosomiasis leishmaniasis malaria dengue yellow-fever Zika-virus chikungunya West-Nile-virus Japanese-encephalitis tick-borne-encephalitis Lyme-disease Rocky-Mountain-spotted-fever ehlichiosis anaplasmosis babesiosis tularemia plague murine-typhus epidemic-typhus endemic-typhus scrub-typhus Q-fever trench-fever bartonellosis cat-scratch-disease rat-bite-fever leptospirosis brucellosis anthrax melioidosis glanders tularaemia francisellosis coxiellosis rickettsiosis orientia-infection ehrlichiosis neoehrlichiosis neorickettsiosis anaplasmataceae rickettsiaceae coxiellaceae bartonellaceae brucellaceae francisellaceae pasteurellaceae legionellaceae chlamydiaceae mycoplasmataceae ureaplasmataceae spiroplasmataceae achaenoplasmataceae entomoplasmataceae haloplasmataceae tenericutes mollicutes bacteroidetes fusobacteria spirochaetes synergistetes deferribacteres thermotogae aquificae caldiserica caldithrix deferrisoma desulfurobacterium thermovibrio thermocrinis hydrogenobacter sulfurihydrogenibium persephonella hydrogenobaculum hydrothermus thermothrix sulfuricurvum sulfurimonas sulfurovum thiovulum thiomicrospira pseudomonas vibrio aeromonas photobacterium aliivibrio gracilibacillus halobacillus halomonas chromohalobacter cobetia salinicola kushneria halotalea halovibrio salinivibrio thioalkalivibrio thiohalophilus ectothiorhodospira halorhodospira thiorhodospira halochromatium thioflavicoccus marichromatium thiocapsa lamprocystis thiodictyon thiopedia amoebobacter thiocystis chromatium allo-chromatium thermochromatium rhabdochromatium thiobaca thiohalocapsa halocapsa thiolamprovum thioploca thiomargarita beggiatoa methylococcus methylomonas methylomicrobium methylosinus methylocystis methylocella methylocapsa methylacidiphilum verrucomicrobia planctomycetes chlamydiae lentisphaerae kiritimatiellaeota calditrichaeota fervidibacteria
Stygoparnus
Comal Springs dryopid beetle (for sole species S. comalensis)
Stygoparnus is a monotypic genus of dryopid beetles containing the single species Stygoparnus comalensis, known as the Comal Springs dryopid beetle. The genus is endemic to central Texas spring systems fed by the Edwards Aquifer. Its sole member is a federally endangered, subterranean-obligate aquatic beetle with vestigial eyes and reduced pigmentation. The genus represents the only known aquatic lineage within the family Dryopidae.
endangered stygobitic subterranean aquatic endemic Edwards-Aquifer Texas monotypic Dryopidae cave-adapted phototaxis conservation captive-breeding