Crawford County

Known species county: 69
Total Observations county: 1,205
Population: 42,808
Area in Square Miles: 403
People per Square Mile: 106
Observations per Square Mile: 2.7
Percent of State Species: 40%
Percent of State Observations:
0.4%

County iNaturalist observations

The Observed Species table provides statistical data on all odonata species that have been observed in the county. Below that is a Target Species table listing species that have not yet been documented in this county, but are likely to exist in the county. This list is data-driven by listing species records from neighboring counties.

Crawford County Ohio

Observed Species

Common NameScientific NameCrawford TotalOhio TotalCrawford 2025Last Sighted
Eastern ForktailIschnura verticalis10718,549122025
Common WhitetailPlathemis lydia7514,243182025
Blue DasherPachydiplax longipennis6618,69252025
Violet DancerArgia fumipennis violacea598,69312025
Eastern PondhawkErythemis simplicicollis5819,53472025
Fragile ForktailIschnura posita5615,43262025
Slender SpreadwingLestes rectangularis544,79732025
Blue-tipped DancerArgia tibialis535,37402024
Emerald SpreadwingLestes dryas4970812025
Widow SkimmerLibellula luctuosa4414,35572025
Eastern AmberwingPerithemis tenera3812,69332025
Autumn MeadowhawkSympetrum vicinum3710,59372025
Ebony JewelwingCalopteryx maculata3610,08422025
Powdered DancerArgia moesta316,02602024
Twelve-spotted SkimmerLibellula pulchella284,08012025
Azure BluetEnallagma aspersum262,86342025
Common Green DarnerAnax junius246,28912025
Blue-fronted DancerArgia apicalis237,71622025
Stream BluetEnallagma exsulans215,54312025
Halloween PennantCelithemis eponina215,02812025
Slaty SkimmerLibellula incesta185,91122025
Familiar BluetEnallagma civile187,43002021
American RubyspotHetaerina americana175,25002024
Unicorn ClubtailArigomphus villosipes152,31402023
Dot-tailed WhitefaceLeucorrhinia intacta131,91522025
Fawn DarnerBoyeria vinosa1361502024
Prince BaskettailEpitheca princeps123,26402024
Double-striped BluetEnallagma basidens106,25602023
Blue-ringed DancerArgia sedula103,41602022
Skimming BluetEnallagma geminatum94,46112025
Westfall's Slender BluetEnallagma traviatum westfalli92,58912025
Calico PennantCelithemis elisa93,70602022
Swamp DarnerEpiaeschna heros984902024
Orange BluetEnallagma signatum84,38002023
Ruby MeadowhawkSympetrum rubicundulum899102023
Citrine ForktailIschnura hastata71,23812025
Black SaddlebagsTramea lacerata74,11002021
Common BaskettailEpitheca cynosura71,06702024
Swamp SpreadwingLestes vigilax770602023
Lyre-tipped SpreadwingLestes unguiculatus724702024
Carolina SaddlebagsTramea carolina61,44402024
Shadow DarnerAeshna umbrosa61,35302023
Turquoise BluetEnallagma divagans61,04302023
Lancet ClubtailPhanogomphus exilis52,03402023
Vesper BluetEnallagma vesperum599902024
Swift River CruiserMacromia illinoiensis583702023
Comet DarnerAnax longipes472422025
Band-winged MeadowhawkSympetrum semicinctum41,10612025
Sweetflag SpreadwingLestes forcipatus460512025
Wandering GliderPantala flavescens41,90302021
Painted SkimmerLibellula semifasciata41,35502024
Aurora DamselChromagrion conditum470602023
Dusky DancerArgia translata31,96202019
Royal River CruiserMacromia taeniolata367902021
Four-spotted SkimmerLibellula quadrimaculata329702023
Springtime DarnerBasiaeschna janata246612025
Blue-faced MeadowhawkSympetrum ambiguum21,92602019
Great Blue SkimmerLibellula vibrans251302019
Sedge SpriteNehalennia irene241402019
Southern SpreadwingLestes australis232902019
Dusky ClubtailPhanogomphus spicatus229802021
Slender BaskettailEpitheca costalis22802021
Ashy ClubtailPhanogomphus lividus11,15001992
Great SpreadwingArchilestes grandis11,13302024
Black-shouldered SpinylegDromogomphus spinosus176301937
Blue CorporalLadona deplanata169602022
Elegant SpreadwingLestes inaequalis161602023
Rainbow BluetEnallagma antennatum154001896
Arrowhead SpiketailZoraena obliqua120702021


Target Species

Target species are potential County Records - species not yet documented in the county. 'Local Obs' is Local Observations and indicates the number of times that the species has been observed in adjacent counties since 2000, and '# of Counties' is the number of adjacent counties in which those recent observations took place. Zero local observations or recent counties means the existing records are historical. 'Peak Active' is a relative description of when the species has been known to fly.

Common NameScientific NameOhio ObsLocal Obs# of CountiesPeak Active
Flag-tailed SpinylegDromogomphus spoliatus939175late Jul
Spotted SpreadwingLestes congener1,06974late Aug-late Sep
Amber-winged SpreadwingLestes eurinus759193Jun-Jul
Cyrano DarnerNasiaeschna pentacantha36683mid Jun
DragonhunterHagenius brevistylus72943mid Jun
Spot-winged GliderPantala hymenaea66733Jul
Spatterdock DarnerRhionaeschna mutata44362Jun
Black-tipped DarnerAeshna tuberculifera18152late Aug-early Sep
Green-striped DarnerAeshna verticalis39532Sep
Pronghorn ClubtailPhanogomphus graslinellus56622late May-early Jun
Clamp-tipped EmeraldSomatochlora tenebrosa25122Aug
Tule BluetEnallagma carunculatum685181Jun-Jul
White-faced MeadowhawkSympetrum obtrusum38331Sep
Eastern Least ClubtailStylogomphus albistylus38221Jun
Delta-spotted SpiketailZoraena diastatops15021early Jun
Midland ClubtailGomphurus fraternus1,01211late May-mid Jun
Lilypad ForktailIschnura kellicotti96111Jun-Sep
Swift SetwingDythemis velox59211Jul-Aug
Mocha EmeraldSomatochlora linearis26311late Jun-late Aug
Red SaddlebagsTramea onusta19911Jun-Jul
Macromia HybridMacromia pacifica x taeniolata11011late Jul-mid Aug
Gilded River CruiserMacromia pacifica9211late Jul
Golden-winged SkimmerLibellula auripennis4611late Jun
River BluetEnallagma anna2111Jun
Eastern Red DamselAmphiagrion saucium1,60000late May-early Jun
Cobra ClubtailGomphurus vastus48600Jun
Lance-tipped DarnerAeshna constricta36300Sep
Plains ClubtailGomphurus externus24400mid Jun-mid Jul
Tiger SpiketailZoraena erronea13400Jul
Skillet ClubtailGomphurus ventricosus2600Jun
Furtive ForktailIschnura prognata400

Crawford County is located in the Till Plain ecoregion. Most of the county is within the Lake Erie watershed, but the southern part of the county drains to the south. The headwaters of the Sandusky River are located in the county’s SE corner, and it flows westward across the county before turning north in neighboring Wyandot County. The headwaters of the Olentangy River are located in Morrow County, alternating twice between northern and southern flows within Crawford County before turning almost due south and exiting the county in the center of its southern border. The Little Scioto River originates further west. flowing in parallel with the Olentangy before their eventual meeting in Franklin County.

County Observation Activity

This graph shows the total number of odonata observations for the county in blue, with the average for all Ohio counties in orange. The season is divided into 10 or 11 day segments by Month – basically early-month, mid-month, and late-month.

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Page updated 8 January 2026