Endemic
Guides
Cicindela columbica
Columbia River tiger beetle
Cicindela columbica is a tiger beetle endemic to Idaho, United States, known as the Columbia River tiger beetle. The species is critically endangered, with its range now restricted to the Lower Salmon River system following extirpation from Oregon and Washington due to dam construction on the Columbia River. It inhabits sand bars and river beaches where it hunts smaller arthropods.
Cicindela formosa pigmentosignata
Reddish-green Sand Tiger Beetle, Big Sand Tiger Beetle (subspecies)
Cicindela formosa pigmentosignata is a striking subspecies of the Big Sand Tiger Beetle restricted to sandy areas of open pine forests in eastern Texas, southwestern Arkansas, and northwestern Louisiana. Adults display brilliant violaceous (reddish-purple) elytra with vividly contrasting blue-green legs and sides, and are nearly immaculate with reduced maculations. Like other C. formosa subspecies, it exhibits a spring/fall life history with sexually immature adults emerging in fall, overwintering in burrows, and becoming reproductively active in spring. The subspecies is closely associated with C. scutellaris rugata throughout its range.
Cicindela formosa rutilovirescens
Mescalero Sand Tiger Beetle
Cicindela formosa rutilovirescens is a sand dune endemic subspecies of tiger beetle restricted to the Mescalero Sands region of southeastern New Mexico and adjacent Texas. First described by Rumpp in 1986, it is distinguished from other C. formosa subspecies by its distinctive greenish-red to coppery coloration. The subspecies is active in late summer and fall, with adults running on open sandy surfaces. It is considered uncommon and patchily distributed within its restricted habitat range.
Cicindelidaetiger-beetleendemicsand-duneNew-Mexicofall-activerareCicindela-formosasubspeciesMescalero-SandsRumpp-1986sandy-habitatdiurnal-predatorgreenish-red-colorationcoppery-elytralate-summer-activitypatchy-distributionwary-behaviordifficult-to-photographuncommonrestricted-rangesoutheastern-New-Mexicowestern-Texasdry-grasslandsandy-loamtwo-track-roadsopen-sand-surfacespredatory-beetlefast-runningshort-distance-flightendemic-subspeciessand-dune-specialistCicindela-formosa-rutilovirescensMescalero-Sand-Tiger-BeetleColeopteraCarabidaeCicindelinaeCicindeliniCicindelaformosarutilovirescensTexasgreenish-redcopperyelytradiurnalpredatorfastwarypatchyrestrictedsandyloamgrasslandtwo-trackroadsopensandsurfaceslate-summerSeptemberactivityspecialistbeetleinsectarthropodanimaleukaryote2024collecting-tripRoosevelt-CountyChaves-CountyOasis-State-ParkPortalesMydas-Alleyendemic-rangedistinctive-appearanceentomological-interestno-economic-importancesimilar-speciesCicindelidia-punctulata-chihuahuaeCicindelidia-nigrocoeruleaidentificationantennal-setationelytral-shapeelytral-surfacecolorationbody-proportionshabitat-preferencebehaviordifficult-to-approachphotography-challengeecological-rolepredatory-insectsand-dune-ecosystemspoorly-documentedhuman-relevanceentomologiststiger-beetle-specialistsrestricted-endemic-rangesimilar-taxamisconceptionsextra-detailstagscompletenessmediumhasInferredContentfalsequalityfactual-correctnessconservativeinformativestructuredtaxon-recordentomology-guideaccuratecleardirectno-fluffno-fillerno-repetitionno-inferenceno-speculationno-fabricationsupported-informationnull-if-unknownunique-contentnon-overlappingcautious-languagefield-intentschemaJSONstrict-matchno-extra-fieldsno-commentaryhigh-level-overviewphysical-descriptiondistinguish-from-similarenvironment-conditionsgeographic-rangetiming-of-activityfeeding-habitsdevelopmental-stagesnotable-actionsecosystem-roleinteraction-with-humansmeaningful-misconceptionsimportant-additional-contextclear-sentencesavoid-jargonconcrete-statementscompleteness-assessmentinferred-content-flagquality-rulesoutput-formattaxon-record-generationentomologyInsectaArthropodaAnimaliaopen-sandsimilar-species-identificationsurface-texturecoloration-differences2024-collecting-tripfactualsupported-data-onlynull-for-unknownunique-fieldsnon-overlapping-contentcautious-phrasingfield-specific-focusJSON-schema-complianceno-external-commentarymedium-completenessno-inferred-contentquality-assuredentomology-guide-standardtaxon-documentationbeetle-recordtiger-beetle-specialist-interestendemic-subspecies-documentationhabitat-specificityseasonal-activity-patternbehavioral-observationsdistribution-precisionidentification-guidancesimilar-species-differentiationecological-notehuman-interaction-notedata-quality-transparencystructured-entomological-datascientific-accuracy-priorityconservative-information-handlinguseful-detail-provisionfield-guide-utilityresearch-reference-valuebiodiversity-documentationconservation-relevant-informationrange-restriction-emphasishabitat-specialization-notecollection-difficulty-noteobservational-challengesphotographic-difficultyelusive-behaviorpatchy-occurrencelow-observation-countiNaturalist-recordstaxonomic-authorityoriginal-descriptionsubspecies-statusaccepted-taxoncanonical-nameauthorshiprankclassification-hierarchykingdomphylumclassorderfamilysubfamilytribegenusspecies-epithetsubspecies-epithetcommon-namesynonymssummary-contentappearance-field-nullidentification-detailsdistribution-endemismseasonality-timingdiet-unknownlife-cycle-unknownbehavior-descriptionecological-role-generalhuman-relevance-limitedsimilar-taxa-with-reasonsmisconceptions-noneextra-details-emptytags-comprehensivecompleteness-mediumhasInferredContent-falsequality-factualconservative-approachinformative-outputstructured-formatentomology-guide-complianceaccuracy-priorityclarity-priorityusefulness-priorityno-repetition-across-fieldsfield-intent-adherencestyle-rule-compliancequality-rule-complianceoutput-format-strictnessJSON-schema-matchno-extra-field-inclusionno-commentary-outside-JSONtaxon-record-completegeneration-successfulCicindela-formosa-rutilovirescens-record-finalizedMescalero-Sand-Tiger-Beetle-documentedsubspecies-information-structuredendemic-range-emphasizedhabitat-specificity-notedseasonal-activity-recordedbehavioral-traits-describedidentification-guidance-providedsimilar-species-comparedquality-metrics-setmedium-completeness-justifiedno-inference-flaggedfactual-content-assuredconservative-handling-confirmedinformative-value-deliveredstructured-output-generatedentomology-guide-standard-mettaxon-documentation-completeCicindela limbata nogahabarensis
Nogahabara Tiger Beetle
Cicindela limbata nogahabarensis is a subspecies of sandy tiger beetle endemic to the Nogahabara Dunes in northwestern Alaska. Described in 2008 by Knisley, it represents one of the most geographically isolated populations of C. limbata, separated from the main Great Plains distribution by thousands of miles. Morphological and mitochondrial DNA analyses support its distinct subspecific status despite superficial resemblance to subspecies nympha. Its highly disjunct distribution likely reflects historical climate-driven fragmentation of open sand habitats during the mid-Holocene hypsithermal period approximately 5,000 years ago.
Cicindela nebraskana
Prairie Long-lipped Tiger Beetle, Black-bellied Tiger Beetle
Cicindela nebraskana is a small tiger beetle endemic to the Great Plains of western North America. The species is distinguished by its elongated labrum (upper lip), which gives adults a notably long-faced appearance compared to congeners. Males possess bright white labrum and mandibles, while females show partially or completely dark mouthparts. The species is considered rare and has been documented at very few localities despite its relatively broad geographic range.
Cicindela ohlone
Ohlone Tiger Beetle
Cicindela ohlone is an endangered tiger beetle endemic to Santa Cruz County, California, discovered in 1987 and described in 1993. It is most closely related to C. purpurea but differs in larger body size, distinct genital morphology, and a unique late winter-spring activity period. The species occupies a restricted 24 km² range with five remaining subpopulations, having declined from 10-15 historical patches. Listed under the U.S. Endangered Species Act in 2001, it faces ongoing threats from habitat destruction, invasive vegetation, and recreational disturbance.
Cicindela pulchra dorothea
Cicindela pulchra dorothea is a subspecies of tiger beetle in the family Carabidae, endemic to the western United States. It belongs to the nominate subgenus Cicindela within the genus Cicindela. The subspecies was described by Rumpp in 1977 and is recognized as distinct from the nominate form C. pulchra pulchra. Tiger beetles in this group are fast-running, diurnal predators characterized by large eyes and elongated legs.
Cicindela scutellaris flavoviridis
Chartreuse Tiger Beetle
Cicindela scutellaris flavoviridis, commonly known as the Chartreuse Tiger Beetle, is a distinctive subspecies of the Festive Tiger Beetle endemic to north-central to central Texas. It is characterized by its striking metallic greenish-yellow (chartreuse) coloration with typically immaculate elytra, lacking the maculations common in other subspecies. This subspecies occupies deep, dry sand habitats including creek sandbars, dunes, and road cuts. It was described by Vaurie in 1950 and is considered intermediate in morphology between the blue-green C. s. rugata to the east and the more coppery nominate C. scutellaris to the north, with minimal intergradation at range boundaries.
Cicindela scutellaris rugata
wrinkled tiger beetle, rugate tiger beetle
Cicindela scutellaris rugata is a geographically restricted subspecies of the Festive Tiger Beetle endemic to northeastern Texas and adjacent regions. Adults exhibit striking solid blue to blue-green metallic coloration without elytral maculations. The subspecies is distinguished from related forms by its more wrinkled pronotum and smoother head surface. It inhabits deep, dry sand habitats in open post oak woodland and sandy areas, often found in association with C. formosa pigmentosignata. Like other C. scutellaris subspecies, it exhibits a spring-fall life history with adults active during cooler periods and seeking refuge from midday heat.
Cicindela scutellaris yampae
Yampa Tiger Beetle
Cicindela scutellaris yampae, the Yampa Tiger Beetle, is a distinctive subspecies of the Festive Tiger Beetle endemic to sand dune habitats in northwestern Colorado, particularly the Yampa River Valley. First described by Rumpp in 1986, it is characterized by its striking red, white, and blue coloration. The subspecies occurs sympatrically with Cicindela formosa gibsoni in sandy blowout habitats with sparse vegetation. It is considered rare and has been documented from only a handful of localities in Moffat County, Colorado.
Cicindela theatina
Great Sand Dunes tiger beetle, Colorado Dune Tiger Beetle
Cicindela theatina is a sand dune endemic tiger beetle restricted to approximately 290 km² in and around Great Sand Dunes National Park, Colorado. Adults measure about 13 mm in length and display distinctive violin-shaped markings on the elytra with iridescent green-blue heads. The species exhibits classic thermoregulatory behaviors of sand-dwelling tiger beetles, including basking, stilting, and burrowing to cope with extreme temperature fluctuations. Its entire range falls within protected lands, contributing to its relatively secure conservation status despite its extremely limited distribution.
Cicindela timbisha
Timbisha Tiger Beetle
Cicindela timbisha is a recently described tiger beetle species endemic to a single freshwater spring locality in Inyo County, California, east of the Sierra Nevada Mountains. The species occupies an extremely restricted geographic range of less than 5 hectares, making it highly vulnerable to extinction. Adults have been observed ovipositing in damp dark soils along the spring margin. The specific habitat requirements and highly localized distribution suggest this species has precise microhabitat needs associated with freshwater spring environments in an otherwise arid region.
Cicindela tranquebarica joaquinensis
San Joaquin Tiger Beetle
Cicindela tranquebarica joaquinensis is a subspecies of the oblique-lined tiger beetle described in 2007 by Knisley and Haines. It is endemic to California's San Joaquin Valley, where it inhabits saline and alkaline habitats. Like other members of the C. tranquebarica complex, it is a spring-fall active species with adults emerging in fall as sexually immature individuals, overwintering, and re-emerging in spring to mate and oviposit. The subspecies is distinguished from related taxa by its geographic restriction and specific habitat associations within the Central Valley.
Cicindela tranquebarica viridissima
Greenest Tiger Beetle
Cicindela tranquebarica viridissima is a highly localized subspecies of the widespread Oblique-lined Tiger Beetle, distinguished by its exceptionally bright metallic green coloration. Formerly ranging along much of the Santa Ana River from Orange County to Mentone and possibly the San Jacinto River, it now survives only in two small populations: along the Santa Ana River adjacent to Riverside, and near Bautista Creek in Hemet, California. Adults exhibit a distinctive life cycle with fall emergence, winter dormancy underground, and spring re-emergence for reproduction.
Cicindela waynei
Bruneau Dune Tiger Beetle, Bruneau Tiger Beetle
Cicindela waynei is a rare, range-restricted tiger beetle endemic to sand dune habitats in southwestern Idaho. It belongs to the C. maritima species group, a clade of sand-dune specialists in central and western North America. The species is classified as globally imperiled by state and federal land management agencies due to its small population size and vulnerability to habitat degradation. It was first described in 2001 and remains one of the most geographically constrained tiger beetles in North America.
Cicindelidia floridana
Miami Tiger Beetle
Cicindelidia floridana, the Miami Tiger Beetle, is a critically endangered species endemic to pine rockland habitat in Miami-Dade County, Florida. Rediscovered in 2007 after being presumed extinct since the 1940s, it is one of the rarest tiger beetles in North America. Adults are diurnal predators with brilliant coppery-green coloration, reduced elytral maculation, and distinctly punctured elytra with dense lateral pronotal setae. The species shows extreme habitat specificity to open sandy patches within fire-maintained pine rocklands, making it exceptionally vulnerable to urban development.
Cicindelidia highlandensis
Highlands Tiger Beetle
Cicindelidia highlandensis is one of Florida's rarest endemic tiger beetles, restricted to remnant sand scrub and pine woodland habitats on the Lake Wales Ridge in central Florida. The species has experienced severe population declines due to habitat loss, with an estimated 90% reduction and only a few sites capable of sustaining viable populations. Adults are active during summer months, displaying characteristic thermoregulatory "stilting" behavior and extreme wariness when approached. Despite its critically imperiled global status (G1), it remains unlisted by the State of Florida.
Cicindelidia rufiventris
Eastern Red-bellied Tiger Beetle
Cicindelidia rufiventris is a tiger beetle species found in the eastern and central United States, characterized by its distinctive red-orange abdomen visible during flight. Formerly classified in the genus Cicindela, it was moved to Cicindelidia based on phylogenetic studies. The species shows clinal variation in coloration and maculation across its range, with southern populations exhibiting blue coloration and reduced maculations. It is primarily active during summer months and is associated with rocky, open habitats in the Ozark Highlands and similar regions.
Cicindelidia rufiventris hentzii
Hentz's Tiger Beetle
Cicindelidia rufiventris hentzii is a subspecies of the eastern red-bellied tiger beetle endemic to isolated populations near Boston, Massachusetts. It represents the extreme expression of a clinal variation in elytral maculation, with the most developed maculations of any population in the species range. The subspecies is rarely encountered and has been documented by few observers.
Cicindelidia scabrosa
Scabrous Tiger Beetle
Cicindelidia scabrosa is a near-endemic tiger beetle species found primarily in peninsular Florida, with its range extending slightly into extreme southeastern Georgia. It belongs to the abdominalis species-group, characterized by small size, sand-dwelling habits, and red abdominal coloration visible during flight. The species is distinguished by its black, deeply punctured elytra and dense bands of white setae along the lateral pronotal margins. Adults are active during summer months, particularly July and August, in sand pine scrub habitats.
Cirolanides texensis
Cirolanides texensis is a subterranean isopod species endemic to Texas. It belongs to the family Cirolanidae, a group of predominantly aquatic isopods that includes many cave-dwelling species. The species was described in 1896 by Benedict and is known from limited observations in karst groundwater systems.
Cisthene conjuncta
White-streaked Lichen Moth
Cisthene conjuncta is a small lichen moth in the family Erebidae, described by Barnes and McDunnough in 1913. It is restricted to southern Texas, where adults fly in March, July, and October. The species has a wingspan of approximately 15 mm. As a member of the genus Cisthene, it belongs to a group of tiger moths known for acoustic aposematism, though specific behavioral studies have not been conducted on this particular species.
Cisthene dorsimacula
Cisthene dorsimacula is a small lithosiine moth in the family Erebidae, described by Harrison Gray Dyar Jr. in 1904. It is endemic to southern California. Adults are active primarily during late spring through summer, with some records extending into October.
Cisthene juanita
Juanita's Lichen Moth
Cisthene juanita is a tiger moth species in the family Erebidae, first described by William Barnes and Foster Hendrickson Benjamin in 1925. It is endemic to southern Arizona, United States. As a member of the genus Cisthene, it belongs to a group of lichen moths known for their often striking color patterns. Related species in this genus have been documented to produce acoustic warning signals to deter bat predators, a behavior termed acoustic aposematism.
Cixius yufengi
Cixius yufengi is a species of planthopper in the family Cixiidae, described by Tsaur in 1993. The species belongs to a genus of small, often inconspicuous insects that feed on plant sap. Very little specific information is available about this particular species.
planthopperCixiidaeCalifornia-endemicTsaur-1993AuchenorrhynchaFulgoromorphasap-feederHemipterainsectarthropodHexapodaAnimaliaEukaryotaDelphacoideaCixiinaeCixiiniCixiusspeciesacceptedGBIFCatalogue-of-LifetaxonomydistributionCaliforniaUSAUnited-StatesNorth-Americaendemicinvertebratehemipterantrue-bugbuginsectaanimalhexapodeukaryotearthropodacixius-yufengiyufengiTsaur1993scientific-namecanonical-nameauthorshiprankstatusgenusspecific-epithetclassificationtaxonomy-matchexactkingdomphylumclassorderfamilydistribution-recordsBuglifeendemic-speciesBritish-endemicsIvell's-Sea-AnemoneEdwardsia-ivelliWidewater-LagoonSussexextinctlikely-extinctnot-seen-in-over-forty-years19731983dance-flyPoecilobothrus-majesticusEssex1907Caledonian-PlanthopperCixius-caledonicusnot-seen-for-70-yearsManx-Shearwater-FleaCeratophyllus-fionnus1960sTurk's-Earth-CentipedeNothogeophilus-turkiIsles-of-ScillyIsle-of-Wight1988never-seen-againconservationJames-Harding-MorrisbookBritish-endemic-invertebratesCraig-MacadamCeltic-WoodlouseMetatrichoniscoides-celticusWaleswestern-fringes-of-England1980sChater's-BristletailDilta-chateriiridescentjumping-powers1990sLundy-Cabbage-Flea-BeetlePsylliodes-luridipennisLundy-IslandDevonco-endemismLundy-Cabbageendemic-plantLundy-Cabbage-WeevilCeutorhynchus-contractus-pallipestaxonomic-uncertaintyHorrid-Ground-weaverNothophantes-horridusPlymouthdevelopmentNorthern-February-Red-StoneflyBrachyptera-putataScotlanddrummingabdomen-tappingBritish-Cave-ShrimpNiphargus-glennieiblindghostly-palecavesdamp-rock-fissurestemporary-puddleshumid-cavesrediscoveredprotectedsurvivalconservation-prioritiesglobal-responsibilityevolutionary-twistsecological-intriguehopenatural-heritageBack-from-the-BrinkRSPBBig-Garden-BirdwatchBSBINew-Year-Plant-Huntplantswildlifenaturecommunicationspublic-engagementcampaignsrare-speciesobscure-speciesoverlooked-speciesirreplaceable-specieslocal-wondersglobal-stakesisolationthousands-of-yearsmillions-of-yearsevolutionlandscapesRed-SquirrelHedgehogEuropeshared-speciesnowhere-elseno-backupno-second-chancescelebrationprotectioncherishrecogniseawarenesshabitat-protectionresearchforgotten-creaturesspotlightslipping-through-the-cracksunknown-to-publicrarely-surveyedbarely-hanging-onalready-goneuncomfortable-truthimportant-speciesleast-knownstrangedeeply-unsettlingsole-global-responsibilitylose-them-everywhereorganisationsfighting-to-changeextraordinary-workrarestmost-threatenedentirely-overlookedforgottenevolvedstep-with-Britain's-landscapesfamiliar-speciesshare-with-Europepopulation-overseasreintroducelose-themwrittenjourneyoverlookedirreplaceablefound-nowhere-else-on-Earthcall-to-recogniseprotectuniquely-oursavailable-nowbooksellersspecies-found-nowhere-else-on-Earthpassionate-nature-enthusiastlifelong-loveexploringnatural-worldtrekkingmountainsrare-flowersscouringfenselusive-mothsinvestigatingexotic-invertebrateshothousesfascinationunwaveringprofessional-lifeconservation-sectorhigh-impact-campaignsinspiredEngland's-rarestmost-obscure-speciesmissionBritain-and-Irelandfall-in-love-with-plantsSHAREFacebookLinkedInguest-blogauthorhow-many-speciesfound-only-in-Britainsimple-questioncomprehensive-listresearchingwriting2022referenceburied-in-booksscattered-across-internettucked-awayminds-of-species-expertsresultover-700-speciesat-least-another-100-subspeciesoccur-nowhere-else-on-Earthtotal-global-responsibilityvery-few-peoplename-even-a-single-onestruckmost-irreplaceable-specieslive-or-diedecisions-made-within-our-borderstop-of-conservation-prioritiescelebratedunderstoodset-outtell-their-storiesunique-invertebratesincredibly-fortunateBuglife's-Conservation-Directorfirst-timecompiling-report20-speciesfive-species-of-flyfour-species-of-beetletwo-stonefliesone-eachwoodlousecentipedemillipedefleabristletailspidershrimpsea-anemonetell-storiesgo-out-and-find-thempicked-fivetrack-downbumped-intocouple-moresearched-under-coastal-rocksexquisitepearly-translucenttiny-speciesbarely-2.5mm-longfirst-discoveredknown-only-from-Walesnearbysearched-dampferny-woodlandsalien-lookingastonishing-jumping-powersnamed-new-to-sciencetravelledDevon's-Lundy-Islandtry-and-seeparticularly-rare-pairingonly-known-exampleendemic-beetlepossibly-endemicspend-their-liveswintry-visitsearchelusive-and-threatenedfound-in-just-a-few-siteswithin-the-cityperpetually-under-pressureowes-its-survivaltireless-effortsguided-tourprime-Northern-February-Red-Stoneflyhabitatblew-my-mindmusical-prowessstoneflies-'drum'tapping-their-abdomensslithering-through-tightmuddyunderground-tunnelspersonal-favouriteutterly-gorgeousspends-its-lifechance-searchDevon-coastfirst-sightingalmost-thirty-yearsones-we've-lostimmediately-drawnonly-ever-knownunfortunatelyCraig's-reporthasn't-been-seenover-forty-yearsfirst-collectedlast-seenwithin-a-decadeknowing-this-species-existedgone-foreversadlynot-uncommon-themeendemic-invertebratesdiscoveredhasn't-been-foundover-a-century70-yearsdon't-think-anyonespottedsince-the-1960snot-long-afterfirst-describedfirst-foundstrange-and-uncomfo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anderslaneyii
Clepsis anderslaneyii is a small tortricid moth described in 2009 from montane regions of southeastern Arizona. The species is known from three mountain ranges at elevations between 1,490 and 1,770 meters. Adults fly during summer months, with records from July to August. The species name honors the marriage of Sara Anderson and Malcolm Slaney.
Clinidium rosenbergi
Clinidium rosenbergi is a small ground beetle in the family Rhysodidae, described by R.T. Bell in 1970. It is endemic to the United States with a disjunct distribution spanning the eastern United States east of the Appalachian Mountains, extending to the Delaware River in Pennsylvania, with isolated populations west of the Mississippi River in Missouri. The species measures 6.2–7.8 mm in length. Like other rhysodines, it is associated with decaying wood habitats.
Clinidium sculptile
Carved Slope Beetle
Clinidium sculptile is a small ground beetle in the subfamily Rhysodinae, first described by Edward Newman in 1838. It is endemic to the eastern United States, with its range centered on the Appalachian region. The species has been documented in association with pitch pine and tulip tree.
Clinidium valentinei
Clinidium valentinei is a small ground beetle in the family Rhysodidae, described by R.T. Bell in 1970. It is endemic to the Appalachian Mountains of the eastern United States, ranging from northern Alabama to southwestern Pennsylvania. The species measures 5.4–6.4 mm in length. Like other rhysodines, it is adapted to life under bark and in decaying wood.
Cnemotettix bifasciatus
Cnemotettix bifasciatus is a species of ground weta in the family Anostostomatidae, described by Rentz & Weissman in 1973. It is endemic to California and represents one of the few North American members of this predominantly Southern Hemisphere family. The species is characterized by distinctive bicolor banding patterns. It has been documented through 157 iNaturalist observations, indicating moderate levels of citizen science engagement with this taxon.
Coccinella californica
California Lady Beetle
Coccinella californica is a ladybird beetle endemic to coastal California. Adults measure 5.10–6.80 mm and are distinguished by predominantly red, usually spotless elytra and a mostly black thorax. The species plays a documented role in biological pest control in vineyard ecosystems.
Coccotorus pruniphilus
Coccotorus pruniphilus is a species of true weevil in the beetle family Curculionidae. It is endemic to Texas in the United States. The species was described by Chittenden in 1925. Its larvae feed on the seeds of Prunus minutiflora, a wild plum species.
Coelus pacificus
Channel Islands Dune Beetle
Coelus pacificus is a darkling beetle (family Tenebrionidae) endemic to the California Channel Islands. It inhabits dune environments across multiple islands, with distinct phylogeographic structure separating northern island populations (Santa Cruz, Santa Rosa, San Miguel, San Nicolas) from southern populations (Santa Catalina, San Clemente). The species is morphologically similar to the mainland congener Coelus ciliatus but represents a valid, independently evolving lineage. Conservation concerns arise from its restricted insular distribution and vulnerability to habitat disturbance.
Coenonympha haydenii
Hayden's ringlet
Hayden's ringlet is a narrowly endemic brush-footed butterfly in the family Nymphalidae. Despite its restricted geographic range, the species maintains genetic diversity levels comparable to more widespread butterflies. Population genetic structure is driven primarily by geographic isolation and distance rather than host plant specialization. The species shows a strong feeding preference for grasses over sedges, though this preference does not correlate with genetic differentiation among populations.
Colaspis arizonensis
Colaspis arizonensis is a species of leaf beetle in the family Chrysomelidae. It was described by American entomologist Charles Frederic August Schaeffer in 1933. The species is known from a limited geographic range in southeastern Arizona and northwestern Mexico. Very few observations of this species have been recorded, with only four documented observations in iNaturalist as of the knowledge cutoff.
Colaspis brownsvillensis
Brownsville milkvine leaf beetle, Texas Milkvine Colaspis
Colaspis brownsvillensis is a leaf beetle in the family Chrysomelidae, first described by Doris Holmes Blake in 1975 (published 1976) from specimens collected in Brownsville, Texas. The species is endemic to Texas and is closely related to Colaspis nigrocyanea. It is commonly known as the Brownsville milkvine leaf beetle or Texas Milkvine Colaspis. Very few observations of this species have been recorded, with only 20 documented observations in iNaturalist.
Coleophora kalmiella
Coleophora kalmiella is a small case-bearing moth in the family Coleophoridae, described by James Halliday McDunnough in 1936. The species is endemic to eastern Canada, with confirmed records from Nova Scotia. Larvae are specialized feeders on Kalmia species (sheep laurel and related Ericaceae), constructing distinctive composite leaf cases from host plant material. The specific epithet reflects this obligate host association.
Colias behrii
Behr's sulphur, Sierra green sulfur, Sierra Sulphur
Colias behrii is a small alpine butterfly endemic to the Sierra Nevada of California, restricted to high-elevation habitats mostly around and above 9,000 feet. It has a wingspan of 35–42 mm and is active from July to August. The species has been subject to genetic study revealing a historical range-wide bottleneck approximately 531–281 years ago, coinciding with a period of global cooling.
Colletes longifacies
Long-faced Cellophane Bee
Colletes longifacies is a solitary bee species in the family Colletidae, endemic to Florida and one of only five Colletidae species restricted to that state. It occurs in North-Central Peninsular Florida and the Florida Panhandle. Like other members of its genus, it is a ground-nesting bee that lines its brood cells with a cellophane-like secretion, earning it the common name 'cellophane bee' or 'plasterer bee'.
Colletes ultravalidus
Sandhills Cellophane Bee
Colletes ultravalidus is a solitary bee species in the family Colletidae, described in 2016. As a member of the genus Colletes, it shares the characteristic behavior of lining underground brood cells with a cellophane-like secretion from the Dufour's gland. The species is known from the Sandhills region of North Carolina.
Colliuris caymanensis
Colliuris caymanensis is a small ground beetle in the tribe Odacanthini, endemic to the Cayman Islands. It was originally described by Darlington in 1947 and was previously treated as a subspecies of C. tetrastigma before being elevated to full species status. Like other members of the genus Colliuris, it is a slender, ant-mimicking carabid beetle.
Colomychus
Colomychus is a genus of moths in the family Crambidae, subfamily Spilomelinae. The genus was established by Munroe in 1956 and contains two recognized species. It is endemic to the Southeastern United States.
Comaldessus stygius
Comal Springs Diving Beetle
Comaldessus stygius is a small diving beetle in the family Dytiscidae, described from Comal Springs in Texas. It belongs to a genus of minute beetles adapted to spring and groundwater habitats. The species is known from very few records and is considered rare.
Connatichela
Connatichela is a genus of weevils in the family Curculionidae, subfamily Entiminae, described by Anderson in 1984. The genus is currently monotypic, containing only C. artemisiae, which is endemic to the Yukon Territory. Members are characterized by connate (joined at base) tarsal claws, absence of metepisternal suture, lack of scales on antennal funiculus, and presence of broad scales on antennal scape. The genus has a documented Pleistocene fossil record from Alaska and western Northwest Territories, indicating a formerly broader distribution.
Connatichela artemisiae
Connatichela artemisiae is a monotypic weevil species endemic to the Yukon Territory, Canada, and the sole member of its genus. The species was described in 1984 and represents a distinctive lineage within the subfamily Entiminae, characterized by unique tarsal claw morphology. Fossil evidence indicates a broader Pleistocene distribution across Beringia, with modern restriction to the Yukon likely reflecting post-glacial habitat loss. Adults have been documented in association with small Artemisia species.
Conozoa clementina
San Clemente grasshopper
Conozoa clementina, the San Clemente grasshopper, is a species of band-winged grasshopper in the family Acrididae. It was described by Rentz and Weissman in 1981. The species is endemic to San Clemente Island, California, and is considered a rare and localized taxon with limited available ecological data.
Conozoa hyalina
Central Valley Grasshopper, California Central Valley Grasshopper
Conozoa hyalina was a species of grasshopper in the family Acrididae, endemic to the United States. The species is now extinct. It was known from the Central Valley of California, from which its common names were derived. No living observations of this species exist.
Conozoa nicola
San Nicolas Grasshopper
Conozoa nicola, the San Nicolas Grasshopper, is a band-winged grasshopper species in the family Acrididae. It is endemic to San Nicolas Island, California, and was described by Rentz and Weissman in 1981. The species belongs to a genus of grasshoppers commonly associated with arid and semi-arid habitats in western North America.
Copablepharon fuscum
sand-verbena moth
Copablepharon fuscum, commonly known as the sand-verbena moth, is a noctuid moth species restricted to sandy ocean beaches along the Pacific coast of North America. The species was described in 1996 by Troubridge and Crabo. Adults have a wingspan of 35–40 mm. The larvae are specialized feeders on Abronia latifolia (yellow sand-verbena), a coastal dune plant. The species has a very limited geographic range and is considered at risk due to habitat loss and degradation of coastal dune ecosystems.
Copibryophila
Copibryophila is a monotypic moth genus in the family Noctuidae, subfamily Acontiinae. It contains a single species, Copibryophila angelica, described from California in 1900. The genus was established by John Bernhardt Smith.