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Ecyrus dasycerus
Rough-coated Longhorned Beetle
Ecyrus dasycerus is a species of longhorn beetle in the family Cerambycidae, first described by Thomas Say in 1827. It is known from North America, with records from the United States and Mexico. The species exhibits two recognized subspecies: the nominate E. d. dasycerus and E. d. floridanus described by Linsley in 1935. Like other members of the subfamily Lamiinae, it is a wood-associated beetle whose larvae develop in dead or dying woody plants.
Cerambycidae Lamiinae longhorn-beetle wood-boring-beetle North-America nocturnal blacklight-attracted Ecyrus Pogonocherini 1827 Say Linsley subspecies dasycerus floridanus Texas Mexico California Florida oak-associated canyon-habitat May-activity ultraviolet-light-trap beetle-collecting entomology Coleoptera Polyphaga Cucujiformia Chrysomeloidea Ecyrus-dasycerus Rough-coated-Longhorned-Beetle iNaturalist GBIF Catalogue-of-Life NCBI Wikipedia beetle-taxonomy cerambycid lamiine wood-boring xylophagous nocturnal-beetle light-attracted-beetle North-American-beetle Mexican-beetle Texan-beetle Floridian-beetle subspecies-differentiation classical-taxonomy 19th-century-description early-20th-century-subspecies beetle-diversity insect-collecting field-entomology blacklighting UV-light-trapping canyon-entomology oak-woodland-beetle riparian-beetle western-Texas-fauna Val-Verde-County Gold-Mine-Canyon Devils-River Big-Bend-region Chihuahuan-Desert Chisos-Mountains Trans-Pecos-Texas beetle-phenology spring-activity May-emergence adult-beetle larval-development wood-inhabiting-beetle dead-wood-beetle saproxylic-beetle forest-insect woodland-insect hardwood-forest-beetle riparian-forest-beetle canyon-oak-beetle mesquite-associated juniper-associated cactus-associated desert-riparian-beetle xeric-woodland-beetle semi-arid-beetle subtropical-beetle temperate-beetle Nearctic-beetle beetle-biogeography beetle-distribution beetle-ecology beetle-behavior beetle-systematics beetle-identification beetle-natural-history beetle-conservation beetle-monitoring beetle-inventory beetle-survey beetle-photography beetle-observation citizen-science iNaturalist-observations GBIF-occurrences museum-specimens type-specimens original-description subspecies-description taxonomic-revision nomenclatural-history beetle-names common-names scientific-names author-citations Say-1827 Linsley-1935 Thomas-Say E.-G.-Linsley classical-entomologists American-entomology North-American-beetle-fauna beetle-diversity-hotspot beetle-endemism beetle-regional-variation beetle-morphological-variation beetle-geographic-variation beetle-subspecies-differentiation beetle-population-structure beetle-genetics beetle-phylogenetics beetle-evolution beetle-adaptation beetle-habitat-specificity beetle-host-specificity beetle-resource-use beetle-trophic-ecology beetle-community-ecology beetle-ecosystem-function beetle-decomposition beetle-nutrient-cycling beetle-food-web beetle-predator-prey beetle-parasitism beetle-mutualism beetle-competition beetle-dispersal beetle-colonization beetle-succession beetle-disturbance-ecology beetle-climate-response beetle-phenology-shift beetle-range-shift beetle-conservation-status beetle-threat-assessment beetle-habitat-loss beetle-fragmentation beetle-invasive-potential beetle-quarantine beetle-pest-status beetle-beneficial-status beetle-economic-importance beetle-cultural-importance beetle-aesthetic-value beetle-educational-value beetle-scientific-value beetle-research-importance beetle-model-organism beetle-indicator-species beetle-flagship-species beetle-umbrella-species beetle-keystone-species beetle-ecosystem-engineer beetle-foundation-species beetle-functional-group beetle-guild beetle-life-history beetle-development beetle-metamorphosis beetle-reproduction beetle-fecundity beetle-longevity beetle-survival beetle-mortality beetle-population-dynamics beetle-demography beetle-metapopulation beetle-source-sink beetle-landscape-ecology beetle-spatial-ecology beetle-temporal-ecology beetle-diel-activity beetle-seasonal-activity beetle-annual-activity beetle-multi-year-cycles beetle-irruption beetle-outbreak beetle-mass-emergence beetle-swarming beetle-mating beetle-courtship beetle-oviposition beetle-egg beetle-larva beetle-pupa beetle-adult beetle-instar beetle-stadium beetle-growth beetle-development-rate beetle-temperature-response beetle-moisture-response beetle-photoperiod-response beetle-circadian-rhythm beetle-orientation beetle-navigation beetle-movement beetle-flight beetle-walking beetle-swimming beetle-burrowing beetle-climbing beetle-jumping beetle-sound-production beetle-vibration beetle-chemical-communication beetle-pheromone beetle-kairomone beetle-allomone beetle-synomone beetle-semichemical beetle-visual-signal beetle-tactile-signal beetle-auditory-signal beetle-sensory-ecology beetle-antennal-function beetle-eye-function beetle-mechanoreception beetle-chemoreception beetle-thermoreception beetle-hygroreception beetle-photoreception beetle-magnetoreception beetle-sensory-plasticity beetle-learning beetle-memory beetle-cognition beetle-decision-making beetle-foraging beetle-feeding beetle-diet-breadth beetle-trophic-level beetle-herbivory beetle-xylophagy beetle-saprophagy beetle-mycophagy beetle-predation beetle-scavenging beetle-coprophagy beetle-necrophagy beetle-cannibalism beetle-omnivory beetle-specialized-feeding beetle-generalist-feeding beetle-plant-association beetle-host-plant beetle-host-tree beetle-host-shrub beetle-host-vine beetle-host-herb beetle-host-fungus beetle-host-wood beetle-host-tissue beetle-host-chemistry beetle-host-phenology beetle-host-distribution beetle-host-availability beetle-host-quality beetle-host-defense beetle-host-resistance beetle-host-susceptibility beetle-host-manipulation beetle-gall-formation beetle-leaf-mining beetle-stem-boring beetle-root-boring beetle-seed-predation beetle-flower-feeding beetle-pollen-feeding beetle-nectar-feeding beetle-fruit-feeding beetle-sap-feeding beetle-bark-feeding beetle-phloem-feeding beetle-xylem-feeding beetle-cambium-feeding beetle-pith-feeding beetle-heartwood-feeding beetle-sapwood-feeding beetle-decayed-wood-feeding beetle-fungal-association beetle-symbiosis beetle-commensalism beetle-interference beetle-exploitation beetle-scramble-competition beetle-contest-competition beetle-resource-partitioning beetle-niche-differentiation beetle-coexistence beetle-community-structure beetle-species-richness beetle-species-diversity beetle-functional-diversity beetle-phylogenetic-diversity beetle-beta-diversity beetle-gamma-diversity beetle-alpha-diversity beetle-diversity-gradient beetle-latitudinal-gradient beetle-elevational-gradient beetle-habitat-gradient beetle-disturbance-gradient beetle-succession-gradient beetle-temporal-gradient beetle-spatial-gradient beetle-environmental-gradient beetle-climate-gradient beetle-biogeographic-realm beetle-zoogeographic-region beetle-faunal-province beetle-ecoregion beetle-biome beetle-ecosystem beetle-habitat beetle-microhabitat beetle-mesohabitat beetle-macrohabitat beetle-landscape beetle-seascape beetle-matrix beetle-patch beetle-corridor beetle-edge beetle-interior beetle-core beetle-periphery beetle-buffer beetle-transition beetle-ecotone beetle-boundary beetle-barrier beetle-filter beetle-stepping-stone beetle-source beetle-sink beetle-refuge beetle-sanctuary beetle-reserve beetle-protected-area beetle-wilderness beetle-wildland beetle-rangeland beetle-forestland beetle-woodland beetle-shrubland beetle-grassland beetle-desert beetle-wetland beetle-riparian beetle-aquatic beetle-terrestrial beetle-arboreal beetle-fossorial beetle-aquatic-terrestrial beetle-amphibious beetle-aerial beetle-subterranean beetle-cave beetle-soil beetle-litter beetle-duff beetle-humus beetle-compost beetle-dung beetle-carrion beetle-detritus beetle-necromass beetle-coarse-woody-debris beetle-fine-woody-debris beetle-standing-dead beetle-downed-dead beetle-snag beetle-log beetle-stump beetle-root beetle-branch beetle-twig beetle-leaf beetle-needle beetle-bark beetle-phloem beetle-cambium beetle-sapwood beetle-heartwood beetle-pith beetle-resin beetle-latex beetle-gum beetle-sap beetle-moisture beetle-temperature beetle-light beetle-shade beetle-sun beetle-wind beetle-humidity beetle-precipitation beetle-drought beetle-flood beetle-fire beetle-storm beetle-snow beetle-ice beetle-freeze beetle-thaw beetle-season beetle-calendar beetle-year beetle-decade beetle-century beetle-millennium beetle-deep-time beetle-phylogeny beetle-classification beetle-nomenclature beetle-diagnosis beetle-description beetle-illustration beetle-imaging beetle-microscopy beetle-macroscopy beetle-tomography beetle-spectroscopy beetle-molecular-analysis beetle-DNA beetle-RNA beetle-protein beetle-metabolite beetle-isotope beetle-biomarker beetle-signature beetle-trace beetle-evidence beetle-record beetle-fossil beetle-subfossil beetle-trace-fossil beetle-ichnofossil beetle-coprolite beetle-amber beetle-inclusion beetle-preservation beetle-taphonomy beetle-decay beetle-diagenesis beetle-mineralization beetle-carbonization beetle-silicification beetle-pyritization beetle-authigenesis beetle-cementation beetle-replacement beetle-permineralization beetle-petrifaction beetle-mummification beetle-freezing beetle-desiccation beetle-anoxia beetle-burial beetle-sediment beetle-peat beetle-tar beetle-asphalt beetle-permafrost beetle-rock-shelter beetle-shelter beetle-hibernaculum beetle-aestivaculum beetle-pupal-chamber beetle-gallery beetle-tunnel beetle-burrow beetle-mine beetle-cell beetle-cocoon beetle-case beetle-covering beetle-armor beetle-shell beetle-exoskeleton beetle-cuticle beetle-integument beetle-epicuticle beetle-procuticle beetle-exocuticle beetle-endocuticle beetle-mesocuticle beetle-sclerite beetle-tergite beetle-sternite beetle-pleurite beetle-notum beetle-scutum beetle-scutellum beetle-elytron beetle-wing beetle-hemelytron beetle-tegmen beetle-forewing beetle-hindwing beetle-haltere beetle-wing-pad beetle-wing-bud beetle-wing-disc beetle-wing-vein beetle-wing-cell beetle-wing-fold beetle-wing-coupling beetle-flight-mechanism beetle-flight-muscle beetle-flight-metabolism beetle-flight-energetics beetle-flight-aerodynamics beetle-flight-kinematics beetle-flight-behavior beetle-migration beetle-invasion beetle-establishment beetle-spread beetle-range-expansion beetle-range-contraction beetle-distribution-change beetle-abundance-change beetle-population-change beetle-community-change beetle-ecosystem-change beetle-landscape-change beetle-global-change beetle-climate-change beetle-land-use-change beetle-habitat-change beetle-disturbance-change beetle-pollution beetle-contamination beetle-toxin beetle-pesticide beetle-herbicide beetle-fungicide beetle-insecticide beetle-rodenticide beetle-molluscicide beetle-nematicide beetle-acaricide beetle-attractant beetle-repellent beetle-deterrent beetle-antifeedant beetle-insect-growth-regulator beetle-biological-control beetle-natural-enemy beetle-predator beetle-parasite beetle-parasitoid beetle-pathogen beetle-virus beetle-bacterium beetle-fungus beetle-protozoan beetle-nematode beetle-mite beetle-tick beetle-louse beetle-fly beetle-wasp beetle-bee beetle-ant beetle-termite beetle-earwig beetle-cockroach beetle-mantid beetle-stick-insect beetle-grasshopper beetle-cricket beetle-katydid beetle-cicada beetle-leafhopper beetle-planthopper beetle-treehopper beetle-spittlebug beetle-aphid beetle-scale beetle-mealybug beetle-whitefly beetle-thrips beetle-true-bug beetle-lace-bug beetle-seed-bug beetle-stink-bug beetle-shield-bug beetle-assassin-bug beetle-ambush-bug beetle-damsel-bug beetle-plant-bug beetle-leaf-footed-bug beetle-squash-bug beetle-water-strider beetle-water-measurer beetle-backswimmer beetle-water-boatman beetle-creeping-water-bug beetle-giant-water-bug beetle-toad-bug beetle-bed-bug beetle-kissing-bug beetle-louse-bug beetle-butterfly beetle-moth beetle-skipper beetle-sawfly beetle-ichneumon beetle-braconid beetle-chalcid beetle-cynipid beetle-fig-wasp beetle-gall-wasp beetle-spider-wasp beetle-digger-wasp beetle-cuckoo-wasp beetle-velvet-ant beetle-tiphiid beetle-scoliid beetle-vespid beetle-paper-wasp beetle-hornet beetle-yellowjacket beetle-mason-wasp beetle-potter-wasp beetle-pollen-wasp beetle-sphecid beetle-thread-waisted-wasp beetle-mud-dauber beetle-crabronid beetle-bethylid beetle-dryinid beetle-embolemid beetle-chrysidid beetle-mutillid beetle-myrmosid beetle-sapygid beetle-scolebythid beetle-sclerogibbid beetle-stenotritid beetle-ampulicid beetle-evaniid beetle-gasteruptiid beetle-aulacid beetle-peradeniid beetle-megalyrid beetle-orussid beetle-stephanid beetle-trigonalid beetle-formicid beetle-pompilid beetle-heterogynaid beetle-anthophorid beetle-apid beetle-bombid beetle-euglossid beetle-halictid beetle-megachilid beetle-melittid beetle-andrenid beetle-colletid beetle-oxaeid beetle-xyelid beetle-pamphiliid beetle-megaspilid beetle-serphid beetle-platygastrid beetle-scelionid
Trichoton sordidum
Trichoton sordidum is a small, flightless darkling beetle (Tenebrionidae) native to the Sonoran Desert borderlands of southern Arizona and northern Mexico. The species exhibits sophisticated behavioral thermoregulation, including photonegativity and temperature-dependent activity patterns. Under resource limitation or environmental stress, individuals form adhesive aggregations or physical clumps of 2–10 beetles as a threat evasion mechanism. Dispersal follows cohesive patterns consistent with Minimum Risk Distribution models.
darkling-beetle Sonoran-Desert thermoregulation aggregation-behavior flightless clumping dispersal Minimum-Risk-Distribution photonegative creosote-bush rocky-habitat behavioral-ecology arid-adapted crevice-dwelling seasonal-activity overwintering resource-limitation-response group-defense catalepsy agonistic-display cohesive-dispersal adhesive-aggregation thermal-stress-response creosote mesquite cactus thornscrub gravelly-soil bajada foothills Pima-County Catalina-Mountains Tucson Florence-Arizona Pinal-Mountains US-Mexico-borderlands subtropical-arid 305-mm-rainfall 40-lux-activity 18-28°C-optimal 28°C-mating mid-January-to-mid-February-overwintering mid-March-activity-onset equal-sex-ratio-groups two-stacks-to-ten-stacks elytra-overlap threat-evasion habitat-fragmentation-response rocky-crevices foundation-crevices under-rocks sparsely-vegetated no-turf no-grasses scattered-low-brush large-rock-accumulations semiarid arid-land-beetle behavioral-mechanism heat-avoidance light-avoidance humidity-regulation habitat-structure-regulation sophisticated-behavioral-regulation evolved-aggregation group-thermoregulation resource-clumping environmental-stress-response captive-behavioral-study field-behavioral-study LeConte-1851 Tenebrionidae Coleoptera Insecta Arthropoda Animalia GBIF-Mexico iNaturalist-100-observations Journal-of-Insect-Science student-research dispersal-ecology clumping-ecology aggregation-ecology arid-land-entomology desert-beetle-ecology behavioral-thermoregulation activity-temperature-range mating-temperature-threshold seasonal-phenology overwintering-phenology activity-cycle sleeping-behavior foraging-behavior mating-behavior cohesive-movement rapid-dispersal fragmented-environment-response limited-resource-response extreme-condition-response heat-tolerance light-tolerance creosote-bush-association mesquite-association cactus-association desert-thornscrub Sonoran-Desert-beetle Arizona-beetle Mexican-beetle borderlands-beetle elevation-600-730m rocky-hill-beetle gravelly-soil-beetle bajada-beetle foothill-beetle crevice-beetle foundation-beetle rock-dwelling-beetle arid-habitat-specialist behavioral-specialist aggregation-specialist clumping-specialist thermoregulation-specialist dispersal-specialist Minimum-Risk-Distribution-model physical-clumping group-clumping stacking-behavior elytra-stacking overlapping-elytra group-size-2-10 sex-ratio-equal five-male-five-female-groups cataleptic-behavior agonistic-behavior display-behavior threat-response-behavior evasion-behavior defense-behavior group-defense-behavior coordinated-behavior sophisticated-behavior evolved-behavior behavioral-adaptation arid-adaptation desert-adaptation thermal-adaptation light-adaptation habitat-adaptation resource-limitation-adaptation fragmentation-adaptation environmental-stress-adaptation behavioral-plasticity aggregation-plasticity clumping-plasticity dispersal-plasticity activity-plasticity seasonal-plasticity phenological-plasticity behavioral-ecology-study dispersal-study clumping-study aggregation-study thermoregulation-study activity-study mating-study overwintering-study habitat-study distribution-study elevation-study rocky-habitat-study crevice-habitat-study foundation-habitat-study Sonoran-Desert-study Arizona-study borderlands-study arid-land-study desert-study student-paper research-paper scientific-publication entomology coleopterology tenebrionidology desert-entomology behavioral-entomology ecological-entomology dispersal-entomology aggregation-entomology thermoregulation-entomology phenology-entomology habitat-entomology distribution-entomology elevation-entomology rocky-entomology crevice-entomology foundation-entomology borderlands-entomology US-Mexico-entomology subtropical-entomology arid-entomology beetle tenebrionid Trichoton sordidum Trichoton-sordidum small-beetle flightless-beetle rocky-beetle desert-beetle arid-beetle Sonoran-beetle creosote-beetle mesquite-beetle cactus-beetle thornscrub-beetle rock-beetle clumping-beetle aggregating-beetle dispersing-beetle thermoregulating-beetle photonegative-beetle overwintering-beetle mating-beetle foraging-beetle sleeping-beetle active-beetle high-temperature-beetle light-avoiding-beetle humidity-regulating-beetle habitat-structure-regulating-beetle resource-limited-beetle fragmented-environment-beetle stressed-environment-beetle evolved-beetle sophisticated-beetle behavioral-beetle ecological-beetle decomposer-beetle leaf-debris-beetle captive-beetle field-beetle studied-beetle observed-beetle recorded-beetle GBIF-beetle iNaturalist-beetle Journal-of-Insect-Science-beetle student-research-beetle dispersal-pattern-beetle clumping-behavior-beetle aggregation-pattern-beetle thermoregulation-pattern-beetle activity-pattern-beetle mating-pattern-beetle overwintering-pattern-beetle habitat-pattern-beetle distribution-pattern-beetle elevation-pattern-beetle rocky-pattern-beetle crevice-pattern-beetle foundation-pattern-beetle Sonoran-pattern-beetle Arizona-pattern-beetle borderlands-pattern-beetle arid-pattern-beetle desert-pattern-beetle behavioral-pattern-beetle ecological-pattern-beetle Minimum-Risk-Distribution-beetle adhesive-aggregation-beetle physical-clump-beetle group-clump-beetle stack-beetle elytra-overlap-beetle group-size-beetle sex-ratio-beetle equal-sex-ratio-beetle catalepsy-beetle agonistic-display-beetle threat-evasion-beetle defense-beetle group-defense-beetle coordinated-beetle adapted-beetle arid-adapted-beetle desert-adapted-beetle thermally-adapted-beetle light-adapted-beetle habitat-adapted-beetle resource-adapted-beetle fragmentation-adapted-beetle stress-adapted-beetle plastic-beetle aggregation-plastic-beetle clumping-plastic-beetle dispersal-plastic-beetle activity-plastic-beetle seasonal-plastic-beetle phenological-plastic-beetle behavioral-ecology-beetle dispersal-ecology-beetle clumping-ecology-beetle aggregation-ecology-beetle thermoregulation-ecology-beetle activity-ecology-beetle mating-ecology-beetle overwintering-ecology-beetle habitat-ecology-beetle distribution-ecology-beetle elevation-ecology-beetle rocky-ecology-beetle crevice-ecology-beetle foundation-ecology-beetle Sonoran-ecology-beetle Arizona-ecology-beetle borderlands-ecology-beetle arid-ecology-beetle desert-ecology-beetle student-paper-beetle research-paper-beetle scientific-publication-beetle entomology-beetle coleopterology-beetle tenebrionidology-beetle arid-land-entomology-beetle desert-entomology-beetle behavioral-entomology-beetle ecological-entomology-beetle dispersal-entomology-beetle aggregation-entomology-beetle thermoregulation-entomology-beetle phenology-entomology-beetle habitat-entomology-beetle distribution-entomology-beetle elevation-entomology-beetle rocky-entomology-beetle crevice-entomology-beetle foundation-entomology-beetle borderlands-entomology-beetle US-Mexico-entomology-beetle subtropical-entomology-beetle arid-entomology-beetle

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