Adams County

Known species county: 91
Total Observations county: 2,193
Population: 28,105
Area in Square Miles: 587
People per Square Mile: 48
Observations per Square Mile: 3.0
Percent of State Species: 53%
Percent of State Observations:
.7%

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.

Adams County Ohio

Observed Species

Common NameScientific NameAdams TotalOhio TotalAdams 2025Last Sighted
Widow SkimmerLibellula luctuosa16614,355312025
Eastern PondhawkErythemis simplicicollis12919,534182025
Common WhitetailPlathemis lydia11814,243162025
Blue DasherPachydiplax longipennis8418,69252025
Slaty SkimmerLibellula incesta685,91162025
Midland ClubtailGomphurus fraternus651,012112025
Halloween PennantCelithemis eponina635,028122025
Eastern AmberwingPerithemis tenera6212,69342025
Fragile ForktailIschnura posita6215,43222025
Ebony JewelwingCalopteryx maculata6110,08482025
Swift River CruiserMacromia illinoiensis5883702024
Powdered DancerArgia moesta506,02692025
Black-shouldered SpinylegDromogomphus spinosus5076342025
Royal River CruiserMacromia taeniolata4967902024
Gray PetaltailTachopteryx thoreyi47494102025
Spangled SkimmerLibellula cyanea421,30462025
Blue CorporalLadona deplanata4069652025
Blue-fronted DancerArgia apicalis397,71622025
Stream BluetEnallagma exsulans385,54332025
Violet DancerArgia fumipennis violacea358,69312025
Calico PennantCelithemis elisa333,70652025
Eastern ForktailIschnura verticalis3318,54902024
Fawn DarnerBoyeria vinosa3061502016
Common Green DarnerAnax junius296,28942025
Autumn MeadowhawkSympetrum vicinum2810,59312025
Blue-ringed DancerArgia sedula283,41612025
Flag-tailed SpinylegDromogomphus spoliatus2893912025
Double-striped BluetEnallagma basidens286,25602024
Prince BaskettailEpitheca princeps273,26432025
American RubyspotHetaerina americana275,25002024
Arrowhead SpiketailZoraena obliqua2620742025
Banded PennantCelithemis fasciata2697722025
Familiar BluetEnallagma civile247,43002023
Skimming BluetEnallagma geminatum244,46102021
Stygian ShadowdragonNeurocordulia yamaskanensis237452025
Stream CruiserMacromia transversa2116302024
Azure BluetEnallagma aspersum202,86322025
Orange BluetEnallagma signatum194,38012025
Ashy ClubtailPhanogomphus lividus191,15002024
Citrine ForktailIschnura hastata181,23802019
Clamp-tipped EmeraldSomatochlora tenebrosa1725142025
Black SaddlebagsTramea lacerata174,11022025
Lancet ClubtailPhanogomphus exilis162,03472025
Painted SkimmerLibellula semifasciata161,35532025
Twelve-spotted SkimmerLibellula pulchella164,08022025
Dusky DancerArgia translata161,96202024
Common BaskettailEpitheca cynosura151,06702024
Springtime DarnerBasiaeschna janata1546602021
Unicorn ClubtailArigomphus villosipes142,31412025
Rapids ClubtailPhanogomphus quadricolor1244532025
Carolina SaddlebagsTramea carolina121,44402024
DragonhunterHagenius brevistylus1272902021
Wandering GliderPantala flavescens111,90322025
Uhler's SundragonHelocordulia uhleri116812025
Eastern Least ClubtailStylogomphus albistylus1138202022
Blue-faced MeadowhawkSympetrum ambiguum101,92602019
Mocha EmeraldSomatochlora linearis1026302019
Tiger SpiketailZoraena erronea913402023
Comet DarnerAnax longipes872402019
Aurora DamselChromagrion conditum870602024
Blue-tipped DancerArgia tibialis65,37422025
Cobra ClubtailGomphurus vastus648622025
Pronghorn ClubtailPhanogomphus graslinellus656612025
Slender SpreadwingLestes rectangularis64,79702015
Shadow DarnerAeshna umbrosa61,35302019
Great SpreadwingArchilestes grandis61,13302013
Allegheny River CruiserMacromia alleghaniensis61602002
Spotted SpreadwingLestes congener51,06902022
Swamp DarnerEpiaeschna heros584902020
Ruby MeadowhawkSympetrum rubicundulum499102004
Amber-winged SpreadwingLestes eurinus475902015
Great Blue SkimmerLibellula vibrans451302019
Handsome ClubtailGomphurus crassus322612025
Spot-winged GliderPantala hymenaea366702022
Arrow ClubtailStylurus spiniceps334102016
Four-spotted SkimmerLibellula quadrimaculata329702009
Green-faced ClubtailHylogomphus viridifrons39902015
Westfall's Slender BluetEnallagma traviatum westfalli22,58902009
Eastern Red DamselAmphiagrion saucium21,60002021
Turquoise BluetEnallagma divagans21,04302023
Southern SpreadwingLestes australis232902008
Elusive ClubtailStylurus notatus220501996
Red SaddlebagsTramea onusta219902023
Twin-spotted SpiketailZoraena maculata29902024
Swamp SpreadwingLestes vigilax170602024
Russet-tipped ClubtailStylurus plagiatus146101996
White-faced MeadowhawkSympetrum obtrusum138302015
Black-tipped DarnerAeshna tuberculifera118102015
Variegated MeadowhawkSympetrum corruptum117002002
Smoky ShadowdragonNeurocordulia molesta11802021
Northern Pygmy ClubtailLanthus parvulus1701987


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
Vesper BluetEnallagma vesperum99944Jun
Cyrano DarnerNasiaeschna pentacantha36662mid Jun
Elegant SpreadwingLestes inaequalis61642Jun
Yellow-sided SkimmerLibellula flavida1121061late Jul
Seepage DancerArgia bipunctulata1,464501Jun-Jul
Lilypad ForktailIschnura kellicotti961211Jun-Sep
Common SanddragonProgomphus obscurus171101late Jun-mid Jul
Golden-winged SkimmerLibellula auripennis4641late Jun
Sphagnum SpriteNehalennia gracilis51431late Jun-early Jul
Spatterdock DarnerRhionaeschna mutata44331Jun
Little Blue DragonletErythrodiplax minuscula1931Jun
Sweetflag SpreadwingLestes forcipatus60521Jul-Aug
Green-striped DarnerAeshna verticalis39521Sep
Brown SpiketailZoraena bilineata24721late May-early Jun
Plains ClubtailGomphurus externus24421mid Jun-mid Jul
Emerald SpreadwingLestes dryas70811Jun
Northern SpreadwingLestes disjunctus2411Jun-Aug
Dot-tailed WhitefaceLeucorrhinia intacta1,91500early Jun
Rainbow BluetEnallagma antennatum54000Jun
Smoky RubyspotHetaerina titia42100early Sep
Sedge SpriteNehalennia irene41400Jun
Cherry-faced MeadowhawkSympetrum internum1400Sep
Umber ShadowdragonNeurocordulia obsoleta600Jun

Located on the southern edge of Ohio and bordering the Ohio river, almost 57% of Adams County is forested. The largest waterway within the county is Brush Creek, which runs across the entire county from north to the Ohio River. Typical of counties located along the Allegheny Escarpment, it is compromised of 3 physiographic regions. A totally unglaciated county, the area along the Ohio and much of the center of the county is part of the Outer Bluegrass Region. The northwest of the county is Till Plain, and the eastern 1/3 is Unglaciated Allegheny Plateau.

Places to Visit

  • The 20,000 acre Edge of Appalachia Preserve includes rugged woodland, prairie openings, waterfalls, giant promontories and clear streams. 51 odonata species have been documented there. It provides 2 access points to Brush Creek, at 3223 Waggoner Riffle Road, West Union, OH, and at 653 Waggoner Riffle Road, Lynx, OH.

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.

Return to County List Summary Page
Page updated 8 January 2026