West-virginia
Guides
Baetisca berneri
Baetisca berneri is an armored mayfly species described from West Virginia streams. The species has been the subject of ecological life history research examining nymphal development and emergence patterns. It belongs to a genus characterized by distinctive armored nymphal forms adapted to lotic environments.
Cambarus dubius
Upland Burrowing Crayfish
Cambarus dubius, commonly known as the Upland Burrowing Crayfish, is a burrowing crayfish species native to the central and southern Appalachian region of the eastern United States. The species has a complex taxonomic history with multiple distinct color phases historically recognized across different geographic areas. Recent taxonomic work has restricted C. dubius sensu stricto to populations with orange dorsal and lateral coloration and cream ventral surfaces, found in the central and northern Allegheny Mountains and high elevations of the Appalachian Plateau. The species constructs distinctive burrow systems and faces conservation concerns due to limited distribution data and habitat alterations.
Homoeosoma asylonnastes
Homoeosoma asylonnastes is a species of snout moth in the family Pyralidae, described by Goodson and Neunzig in 1993. It is known from limited observations in eastern North America, specifically Tennessee and West Virginia. The species belongs to a genus containing several sunflower-associated moths, though specific ecological details for this species remain poorly documented.
Neolygus quercalbae
A plant bug in the family Miridae, described from the northeastern United States. The species epithet suggests an association with oak (Quercus) and white (alba), though specific host relationships have not been formally documented. Like other members of Neolygus, it is presumed to be phytophagous.
Paralobesia piceana
Paralobesia piceana is a tortricid moth in the family Tortricidae, subfamily Olethreutinae. It was described by Freeman in 1941. The species has been documented feeding on Eastern Hemlock (Tsuga canadensis) in West Virginia, representing both a new host record and a new state record for this poorly known species.
Recurvaria consimilis
A small gelechiid moth with a wingspan of 8.5–9.5 mm, recorded from the east-central United States. The larvae are leaf miners that feed specifically on Ceanothus americanus. First described by Braun in 1930.
Trichonephila clavata
Jorō spider, Joro Spider, Parachute spider
Trichonephila clavata, commonly known as the Jorō spider, is a large orb-weaving spider native to East Asia that has become established as an invasive species in the southeastern United States since approximately 2010. First confirmed in Georgia in 2014, it has expanded rapidly across multiple states through a combination of ballooning dispersal and human-mediated transport. The species is notable for its substantial size, striking coloration, and extensive golden webs, but poses minimal risk to humans due to small fangs and docile behavior. Its physiological adaptations—including higher metabolic rate, faster heart rate, and greater cold tolerance than its congener Trichonephila clavipes—suggest potential for continued northward range expansion.
invasive-speciesorb-weaverballooningurban-wildlifebiological-controlcold-tolerancestartle-responsecannibalismkleptoparasitismJapanese-folkloreNephilidaeTrichonephilaspider-silkrange-expansionphysiological-adaptationurban-ecologyagricultural-pest-predatoriNaturalistGeorgiaMarylandEast-AsiaUnited-Statesspider-bitevenomdocilenon-aggressiveweb-architectureegg-sacoverwinteringsexual-dimorphismmetabolic-rateheart-ratefreeze-toleranceroad-ecologyprey-capturecompetitionnative-spider-impactspublic-perceptionmedia-sensationalismmanagementpesticide-alternativesbroom-removalornamentalstructural-pestornithologycardinalweb-strengthtrophic-interactionsDNA-metabarcodingdiet-analysisspecies-distribution-modelphysiological-entomologybehavioral-ecologyarachnologyballooning-dispersalhuman-mediated-dispersalhitchhikercargo-stowawayport-of-entryclimate-changewarmingnorthward-expansionDMVHoward-CountyElkridgeIlchesterWest-Elkridgebeech-forestsecondary-forestsuburbanroadsidetelephone-polestreetlampforest-edgedisturbance-toleranceprey-detectionvibrational-noiseauditory-disturbancemotionlessfreezingshynessHannibal-Lecterstink-buglanternflyevolutionary-historyancient-associationecosystem-servicebiocontrolnatural-enemyinvasive-pestbrown-marmorated-stink-bugspotted-lanternflyHalyomorpha-halysLycorma-delicatulacompetitive-exclusiondominant-orb-weaverabundantpopulation-growthrapid-spreadrange-span120,000-km2physiological-plasticitymetabolismtwice-as-high77%-higher-heart-rate74%-freeze-survivaldevelopment-rateseasonal-windowlife-cycle-completionthermal-limitationcongener-comparisonnatural-dispersalhuman-transportiNaturalist-recordcitizen-scienceconfirmed-sightingbreeding-populationmale-and-femalegravid-femaleegg-casestowawaycargo-containerport-introductionlocal-portvehicle-transporthitchhikingaccelerated-arrivalseveral-yearsnatural-meansprognosticationpredictionmodelsuitable-habitatabundant-suitable-habitateastern-North-Americawestern-North-Americapotential-rangeinvasive-rangepotential-impactenvironmental-impactecological-impactecosystem-impactmonitorcautiousevidence-basedreasonable-journalismsensationalismexaggerationuncritical-acceptanceharmlesscarefully-monitorednext-stepsresearch-opportunitycall-for-researchknowledge-gaplittle-knownnovel-ecosystemspreadingrapidly-expandinginvasive-predatorinvasive-orb-weavernon-nativeintroducedestablishedcolonizedthrivingdoing-finehappymerely-20-minutes-awayroad-tripvisitaccess-spreadbeech-leaf-diseaseBLDstate-forestremarkable-colonyamongst-beech-treesconfirmed-prognosticationDavis-and-Frickescape-relative-warmthexpand-range-northwardeastern-seaboardmerely-20-minutes-away-from-homeresist-opportunityamazing-predatorstales-of-arrivalprevious-episodes20222024reduce-angstlarge-non-native-spiderestablishing-in-DMVfacts-presentedpast-episodevenomous-terrible-painfulNahexpert-Rick-Hoebekerisks-smallpuny-fangsunlikely-pierce-skinvideocompletely-non-aggressiveeastern-Howard-Countyhaphazard-webslittered-with-remainsformer-victimsleavesshed-exoskeletonsmuch-larger-femaledwarfs-matepositioned-just-abovestrand-of-silkspinneretsunderside-of-abdomennear-red-moundrelative-to-handlarge-and-docilewait-and-seewhat-Jorō-means-to-ecosystemshelp-other-spidersput-a-beat-down-on-invasive-pestsstink-bugsspotted-lanternfliespassive-huntersenormous-webslarger-than-a-meter-in-diametercapture-prey-snared-in-silkarachnophobes-scaryarachnophiles-beautifulimportant-ecosystem-servicescrop-pestsnative-rangeAsiahaving-an-old-friend-over-for-dinnerreunitefirst-timelarge-spidersjuicy-prey-itemsfeathered-and-non-feathered-reptilesposes-no-known-threatdifficult-to-predict-impactnon-native-speciesexperts-suggestbeyond-scary-miengive-indigenous-large-orb-weavers-run-for-their-moneyblack-and-yellow-garden-spidermarbled-orb-weaverspotted-orb-weaverother-parts-of-worldmost-abundant-and-dominant-orb-weaverwhat-will-it-meanonly-time-will-tellfinal-tidbitJorō-shapeshifterJorō-gumobeautiful-womanseduces-menbinds-with-silkdevoursbad-dateacknowledgementsRick-Hoebekeidentifying-JorōinsightsDavid-CoyleBob-Bellingergreat-imagesknowledgestudiesVeni-vidi-viciNelsen-et-al.Physiological-evaluationNephila-clavata-newly-recordedHoebeke-et-al.Life-Cycle-Habitat-and-VariationMooreStartle-responsesDavis-and-AneraoHow-Urban-Tolerant-Are-TheyDavis-et-al.inspirationdetailsstarsDave-ClementMiri-TalabacMaddie-Potterhooked-up-with-colonydifferentiateresources.ipmcenters.orglinkJorō-guruDavid-Coyle's-takeYouTubecalm-your-fearsJournal-of-Economic-EntomologyJournal-of-Medical-Entomologychemical-management-strategieseffective-management-methodsspider-control-productssafe-and-effectiveunlikely-to-bitegenerally-harmlessbig-spiderscolorful-spidersinvasive-spidersin-your-face-spiderswebs-on-homeslandscape-plantsstructuresmiddle-of-where-people-live-work-and-playnorthern-Georgia-2014presumed-arrived-few-years-prior15-yearsincreased-dramaticallymuch-of-Southeastdisjunct-populationsnortheastern-U.S.firestorm-of-interestrapidly-expanding-rangesoutheastern-statesmany-countiesCarolinasTennesseeOklahomamore-than-a-centuryparts-of-Floridararely-Pennsylvaniatropicsthermal-limitationshigher-metabolismfaster-heart-ratebetter-ability-to-tolerate-freezingcomplete-life-cycle-rapidlychilly-temperaturessuite-of-adaptationsexpand-northwardwarm-loving-cousinfindings-support-potentialmuch-yet-to-be-learnedsuccessfully-survive-northern-wintersnation-and-world-warmsouthern-species-expandhigher-latitudes-and-altitudesrapidly-range-expansion-will-occurtypical-mode-of-dispersalaerial-dispersalballooning-on-strands-of-silkCharlotte's-babiesCharlotte's-Webspectacular-monikerparachute-spiderrain-down-from-airplaneslong-distance-transithuman-assistancegood-hitchhikersinseminated-gravid-femaleegg-case-stowawayarrival-in-DMVseveral-years-by-natural-meansnew-introduction-at-local-porthuman-assist-in-vehiclesaccelerate-arrivalterrible-and-painfulsmall-fangsvisited-cousingolden-silk-spiderCosta-Ricaexceeding-meter-diameterindigenous-large-orb-weaversrun-for-their-moneyminimal-direct-impactfirestormAndrew-DavisBenjamin-FrickUniversity-of-Georgiapast-weeknative-to-eastern-AsiaJapanChinaKoreaTaiwanknown-in-Georgia-since-2013spreading-rapidlyjoined-its-cousinTrichonephila-clavipesestablished-over-160-yearsbetter-tolerate-freezingsurvive-northern-wintersrapidly-range-expansiontypical-modelong-distancenew-introductionhuman-assistarachnophobesarachnophilesbrown-marmorated-stink-bugsdifficult-to-predictscary-mienindigenous-orb-weaversMary-NouriSarah-MorganWAMUrelatively-harmlessspider-seasonfallleaves-changing-colorcool-crisp-autumn-airpumpkin-spiceextension-entomologistSoutheastnot-just-spiders20-feet-widehomespeople-live-work-and-play15-years-or-soinflux-of-callspublicentomology-extension-programsmedia-frenzytwo-questionsget-rid-of-Jorō-spidersare-Jorō-spiders-dangerousClemson-UniversitySouthern-Adventist-UniversityWashington-CollegeUnion-Collegetwo-new-studiestest-methods-for-eliminatinghow-likely-to-biteharmscoured-internetrecommended-treatment-optionsspider-specific-management-recommendationsmedically-relevantwidow-spidersbrown-reclusesdo-not-enter-homesrelatively-newrecommended-productslabelled-spider-control-productstested-productsseveral-products-eliminatenot-legal-pesticidesmachine-lubricantnot-recommendedcommercially-availablestrongly-encouragelabelled-productseasiest-and-cheapestwithout-chemicalsbroom-or-stickwalked-into-spider-webrode-biketook-spider-to-facenot-great-feelingwonder-if-biteygive-bitten-superpowersunique-studiesevaluated-behaviorsreact-to-peoplerather-drop-off-webhang-around-and-bitereally-provokevolunteered-to-get-bittenyes-you-read-correctlyakin-to-mosquito-bitelittle-rednesslittle-swellinglargely-gone-next-dayno-acquired-superpowerstake-home-messagetwofoldsimplest-and-most-effectivewithout-pesticidesfeel-you-need-pesticidesproduct-labeled-for-spider-controltry-not-to-freak-outdoesn't-want-to-be-on-youodds-of-getting-bitten-extremely-lowenjoy-glorious-fall-weatherdrink-pumpkin-spiced-beveragewatch-where-you-walkKeep-calm-and-carry-onbites-unlikelycause-minimal-discomfortassociate-professorDepartment-of-Forestry-and-Environmental-Conservationsocialsemailextensionfeaturedpest-managementEntomology-Todaylatest-postsemail-subscriptionMarch-2022wonderedmake-its-way-to-DMVSeptember-2022two-observationsthree-years40-sightingshappy-and-doing-just-fineseveral-Howard-County-locationsweek-or-so-agoteam-of-scientistsUniversitymissionkilling-ultra-valuable-beech-treesthriving-amongst-beech-treesvisit-amazing-predatorsmature-femalesboth-Trichonephila-speciesthree-locally-common-orb-weaving-speciestime-spent-immobilemild-disturbancebrief-puff-of-airair-puff-response-datafive-other-North-American-speciespublished-literature453-observationsfreezing-behavior10-spider-speciesremained-immobile-under-a-minuteboth-Trichonephila-spidersover-an-hourunprecedentedshyest-ever-documentedtolerate-urban-environmentsremaining-motionlessfleeingnonsexual-cannibalismmating-activityfemales-cannibalize-malesfood-availabilityterritorial-aggressionSoutheastern-United-Statesexpanding-rangeshybehavioral-reactionsdescriptive-observationsphoto-documentationanecdotal-observationscontrolled-pairingslabnatural-websfieldone-female-biting-and-killing-anothershort-fightsimilar-sizecontainer25-trialsfights-ensued-40%different-sizes27-trialsfights-happened-18%larger-females-not-always-aggressor52-lab-trialssix-bouts9%direct-killingfield-trialsempty-web14-trialsone-fight7%aggressor-killing-and-wrappingsilkaway-from-any-webnot-necessarily-territorialityintraspecific-aggressionprovoked-or-stresseddeserves-more-studynewly-invasivebiologyphysiologynew-rangeclosely-related-speciessuccessfully-established160-yearsinvestigationcompareonline-recordsiNaturalist.orgseasonal-distributionstimingfemalesphysiological-traitsenvironmental-tolerancemetabolic-ratescardiac-functioningcold-exposuresurvivalbrief-below-freezing-temperatureshorter-seasoncomplete-lifecyclenarrow-periodsuitable-weatherinherently-higher-metabolismlow-temperaturesurvive-better74%-compared-to-50%brief-freezecolder-climatic-regionsoutheastern-USAuseful-informationplanningurban-landscapesbusy-roadsfrequent-disturbancesauditory-and-vibrationalphysiological-or-behavioral-changesnortheast-Georgiavarying-levels-of-road-trafficprey-capture-behaviorsimulated-preytuning-fork128-hz-frequencytouched-to-webattacked357-total-trials20-different-roadsattacked-59%high-variabilitysome-roadsides-over-80%others-less-than-30%small-but-significant-negative-correlationdaily-road-trafficspider-attack-ratesmoderate--to-heavy-traffic-roadsslightly-less-likely-to-attack51%-vs-65%able-to-live-near-roadscost-in-terms-of-prey-capturedid-not-weigh-lesscompensate-for-disturbanceaccumulating-evidencehuman-dominated-landscapesaid-spreadintroduced-rangeEriostethus-rufuspolysphinctine-ectoparasitoidaraneid-spidersNeoscona-spp.endemic-to-JapanYamagata-Prefecture38º46'-Nnorthern-Japannorthernmost-recordgenusidentification-confirmedmorphologyDNA-barcodingcocoonlarge-modified-webuniqueinverted-triangleover-50-cmhanging-from-ill-defined-partno-organized-structurehost-spidercircumstantial-evidencesstructure-of-modified-webpre-existing-web-partly-reusedorb-web-completely-removedsustaining-threads-newly-mooredparasitises-host-spiderstwo-subfamiliesunusual-for-groupinvasion-potentialknown-invasive-rangereviewdispersal-abilitiespotential-impactsmanagement-strategiesOctober-2022at-least-120,000-km2South-CarolinaNorth-CarolinaAlabamaWest-Virginiapattern-of-spreadnatural-dispersal-mechanismshuman-mediated-transportlarge-bodied-orb-weaversflying-insectssmall-animalsthirteen-co-occurring-spider-speciesmonitored-for-competitionresourcesweb-building-sitesnatural-and-urban-habitatsmanagement-options-limitedadvise-journalists-and-expertsagainst-exaggerating-potential-environmental-impactecologically-harmlessrapid-spread-carefully-monitoredcautious-evidence-based-approachdetermining-next-stepsthree-material-typesweb-captureintroduced-speciesalter-established-trophic-interactionsmolecular-analysisresolve-changescommunity-structureforaging-linkseast-coastfecal-samplesprey-remains-from-websdissected-gutscompare-diet-compositionarthropod-targeted-COI-primersIllumina-MiSeqhighest-diversityhighest-richnesshighest-proportion-prey-readsrecovery-of-prey-readsdissected-gut-contentlowoverwhelmed-by-Jorō-spider-DNAhigh-proportions-Jorō-spider-readshigher-prey-diversity-and-richnessdetected-prey-DNAseveral-days-after-captureinitial-gut-retention-time-estimatesfirst-glimpsecomplexity-of-trophic-associationsintroduced-web-building-spiderviable-materialsource-of-prey-DNAestimates-of-biodiversityJammu-and-Kashmirnorthernmost-shiftingdocument-presencebehaviorhabitat-adaptationcolder-temperature-environmentGoha-TehsilDoda-district1556.74-metersroad-bridgenearby-vegetationbrightly-colored-abdomensblackgreenyellowredlong-legsyellow-and-black-bandingspredominantly-seensmallerfewerunique-behaviorsremaining-motionless-after-disturbances5-10-meters-of-roadsadaptation-to-human-settlementsfield-observationsimage-documentationexpert-confirmationthrive-in-colder-conditions15-20-degrees-CelsiusOctober-Novemberno-spider-foundhigher-elevationssignificantly-lower-temperaturesadaptation-limited-to-milder-cold-regionsnew-insightadaptationneed-for-further-researchnon-native-habitatseggsoverwinterharsh-weather-conditionsno-protectioncompact-silk-casemilky-coatingchorionic-microspheresCMfine-structural-characteristicsecological-importanceuneven-size-distributionouter-eggmassevenly-coveredsingle-layerdiameter-2.3-µmshort-papillary-projectionssegmental-adhesionmucous-componentsinsoluble-in-waterpartially-soluble-in-absolute-ethanolspherical-structureHFIPstrong-organic-solventnot-derived-from-vitellogenic-or-choriogenetic-processesCM-adhesive-coatingsovipositional-processequivalent-to-cocoon-silkprotective-functionssilken-eggcaseNorthern-CardinalCardinalis-cardinalisperchessteals-foodsoutheast-of-the-United-Statesquestionsnative-fauna-affectedconsuming-prey-itemsexamplenative-species-deriving-benefitmanner-of-kleptoparasitismperched-directly-on-websupported-its-weight42-48-gfirst-documented-casespider-web-supporting-perching-birdmeasurementsforce-gaugetypical-webssupport-masses-up-to-70-gsmall-but-growing-body-of-knowledgenon-native-spiderspecies-distribution-modelsecological-niche-modelingpredict-areasestablish-if-introducedthree-distinct-genetic-lineagesmitochondrial-COIgenome-wide-SNPsKorean-Peninsula