Entelegyne
Guides
Bathyphantes alascensis
Three-spined Shield Sheetweaver
Bathyphantes alascensis is a small sheetweb spider in the family Linyphiidae, commonly known as the Three-spined Shield Sheetweaver. The species occurs across northern North America from Alaska through Canada to the northern United States. Like other linyphiids, it constructs horizontal sheet webs, often with a retreat at the edge. The genus Bathyphantes is part of the diverse sheetweb spider assemblage, with males possessing complex pedipalps used in mating.
Bathyphantes brevipes
Grey Sheetweb Weaver
Bathyphantes brevipes is a species of sheetweb spider in the family Linyphiidae, commonly known as the Grey Sheetweb Weaver. It is a small arachnid found across northern North America, with records from the United States and Canada including Alberta, British Columbia, and Manitoba. As a member of the Linyphiidae family, it constructs flat sheet webs typically positioned close to the ground or substrate.
Bathyphantes pallidus
Pale Sheetweb Weaver
Bathyphantes pallidus is a small sheetweb spider in the family Linyphiidae, commonly known as the Pale Sheetweb Weaver. The species was described by Nathan Banks in 1892. It builds flat, horizontal sheet webs with a retreat at one edge, typical of its family. As an entelegyne spider, it possesses complex genital structures that serve as key diagnostic characters for species identification.
Neriene radiata
Filmy Dome Spider
Neriene radiata, commonly known as the filmy dome spider, is a sheet-weaving spider in the family Linyphiidae with a Holarctic distribution spanning North America, Europe, and Asia. It constructs a distinctive dome-shaped web of fine silk, hanging upside-down beneath it to capture prey. The species is notable for its delicate web architecture and has been frequently observed in natural history studies.
Oreoneta
A genus of dwarf spiders (family Linyphiidae) established in 1894, comprising approximately 30 species distributed across cold-temperate and Arctic regions of the Northern Hemisphere. Most species inhabit high-latitude or high-altitude environments. The genus was revised extensively by Saaristo & Marusik in 2004, resulting in numerous new species descriptions.
ArachnidaAraneaeLinyphiidaedwarf-spiderArcticborealHolarctictundramontanepredatorcold-adaptedground-dwellinghigh-latitudehigh-altitudeSaaristoMarusikChyzerKulczyński18942004-revisiongenitalic-charactersepigynumembolusconductorpalaearcticnearcticEurasiaNorth-AmericaScandinaviaSiberiaAlaskaCanadaGreenlandKazakhstanMongoliaChinaKurile-IslandsFinlandSwedenNorwayGermanySwitzerlandItalySlovakiaBulgariaCentral-Europetype-species:-Oreoneta-frigidathirty-species30-speciessmall-spidersheet-web-weavermoney-spiderLinyphiinaeErigoninaemicrohabitatlitter-dwellingcrypticunderstudiedtaxonomic-revisionmorphological-taxonomylight-microscopyspecies-descriptionbiogeographyglacial-refugiapost-glacial-colonizationendemicregional-endemicalpine-endemicArctic-endemicboreal-foresttaigarocky-habitatmeadowwetlandstream-marginsnowbedfellfieldheathmosslichenvegetationsoil-surfacestonerockboulderscreetalusdebrishumusorganic-layerpermafrostpolarsubpolarcold-stenothermstenothermstenotopichabitat-specialistconservationraredata-deficientIUCNred-listnatural-historysystematicsphylogenymolecular-systematicsDNA-barcodingCOIcytochrome-oxidase28S18SITSmorphologytaxonomyalpha-taxonomyrevisionmonographfaunisticschorologyzoogeographydispersalvicariancespeciationcryptic-speciesspecies-complexspecies-groupspecies-aggregatesubspeciesinfraspecificvariationpolymorphismsexual-dimorphismmalefemalejuvenileinstarecdysismoltingdevelopmentgrowthreproductionmatingcourtshipsperm-transferspermatophorepedipalppalpal-organcopulatory-organgenitaliaepigynevulvaspermathecafertilization-ductcopulatory-ductatriumscapemacerationdissectionmicroscopestereomicroscopecompound-microscopeillustrationdrawingphotographySEMscanning-electron-microscopyhabitusdorsalventrallateralprosomaopisthosomaabdomencephalothoraxcarapacesternumchelicerafanglegtarsusmetatarsustibiapatellafemurcoxatrochanterspinneretcolulustracheal-spiraclebook-lungcuticlesetahairspinemacrosetasensillumchaetotaxyeyeoculusocellianterior-median-eyeposterior-median-eyeanterior-lateral-eyeposterior-lateral-eyeeye-tubercleclypeusfoveapedicelwaistconstrictioncolorpatternpigmentationmelanismalbinismsizemeasurementtotal-lengthcarapace-lengthcarapace-widthabdomen-lengthleg-lengthleg-formulaindexratioproportionallometryontogenysubadultadultmaturitysexual-maturityreproductive-maturitylongevitylife-spangeneration-timevoltinismunivoltinesemivoltinebiennialperennialoverwinteringdiapausequiescencecold-hardinessfreeze-tolerancefreeze-avoidancesupercoolingcryoprotectantglycerolsorbitoltrehalosethermal-biologythermoregulationbehavioral-thermoregulationpostural-thermoregulationactivitydiurnalnocturnalcrepuscularmatutinalvespertinecircadianrhythmseasonalphenologycalendardatemonthactivity-periodbreeding-seasonovipositioneggegg-saccocoonsilkwebsheet-webtangle-webspace-webplatform-webdome-webbowl-webfunnelretreatsignal-linedraglineattachment-discampullate-glandcylindriform-glandaciniform-glandaggregate-glandflagelliform-glandtubuliform-glandpiriform-glandmajor-ampullateminor-ampullatesilk-proteinspidroinfibroinsericingluevisciddrycapture-silkdragline-silksafety-lineanchor-lineframe-lineradial-linespiral-linesticky-spiralnon-sticky-spiralhubperimetersubstratenicheguildfunctional-grouptrophic-levelcarnivorezoophagearthropodivoreinsectivorepreycaptureattacksubdueimmobilizekillfeeddigestextraoral-digestionsucking-stomachgutmidguthindgutMalpighian-tubuleexcretionosmoregulationmetabolismrespirationtracheaspiraclegas-exchangecirculationhemolymphheartaortasinusnervous-systembrainganglionnervesensory-organmechanoreceptorchemoreceptorthermoreceptorhygroreceptorphotoreceptorproprioceptortrichobothriumtarsal-organslit-sensillumlyriform-organpedipalp-organHaller's-organcontact-chemoreceptorgustatoryolfactorypheromonesemiochemicalkairomoneallomonesynomonecommunicationsignalvibrationseismicairbornevisualchemicaltactilecopulationinseminationspermspermatozoonmedian-apophysisterminal-apophysisparacymbiumcymbiumbulbustegulumsubtegulumradixlamellaprocessapophysisflangehookcoilspiralductreservoirscleriteplatefieldfossapocketreceptaculumspermathecaeglandinsemination-ductuterusuterus-externusuterus-internusvaginagonoporeovipositorovaryoviductfolliclevitellogenesisoogenesisspermatogenesistestisvas-deferensejaculatory-ductseminal-vesiclefecundityfertilityclutch-sizeegg-numberhatchingemergenceballooningaerial-dispersalsilk-draglinegossamermigrationmovementwalkingrunningjumpingclimbingburrowinghidingrefugeshelterdefensepredationpredator-avoidanceantipredatorcrypsiscamouflagemimicryaposematismdeimaticthanatosisautotomyleg-lossregenerationinjurywoundhealingimmune-responsehemocytemelanizationencapsulationnoduleparasiteparasitoidpathogenfungusbacteriumvirusnematodemitegroomingcleaninghygieneself-maintenancesilk-useweb-useprey-captureforaginghuntingambushsit-and-waitactive-huntingsearchingprobingtestingexplorationlearningmemorycognitionbehaviorethologyecologypopulationcommunityecosystembiomebiospherehabitatenvironmentabioticbioticfactortemperaturehumiditymoisturepreci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tangle-web spiders, cobweb spiders, comb-footed spiders
Theridiidae is a large, globally distributed family of araneomorph spiders comprising over 2,600 species in more than 130 genera. Members are characterized by a comb of serrated bristles (setae) on the tarsus of the fourth leg, used to manipulate silk. The family exhibits remarkable diversity in web architecture, ranging from irregular tangle webs to specialized gumfoot webs and sheet-like structures. Theridiids are ecribellate, producing sticky capture silk rather than woolly silk, and are entelegyne with females possessing a genital plate. The family includes medically significant species such as widow spiders (Latrodectus), model organisms for social behavior research (Anelosimus), and specialized kleptoparasites (Argyrodinae).
Zora
Zora is a genus of small to medium-sized spiders in the family Miturgidae. These entelegyne, ecribellate spiders are characterized by two claws with claw tufts, distinct longitudinal bands on the cephalothorax, an 4-2-2 eye arrangement, and long overlapping spines on the first two tibiae and metatarsi. The genus contains 17 described species with abdomens showing distinct color patterns useful for species identification. The genus was established by C. L. Koch in 1847 and has historically been placed in the family Zoridae, though modern classifications assign it to Miturgidae.