Darke County

Known species county: 77
Total Observations county: 2,087
Population: 52,376
Area in Square Miles: 598
People per Square Mile: 87
Observations per Square Mile: 3.0
Percent of State Species: 45%
Percent of State Observations:
0.8%

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.

Darke County Ohio

Observed Species

Common NameScientific NameDarke TotalOhio TotalDarke 2024Last Sighted
Blue-tipped DancerArgia tibialis1374,492252024
Widow SkimmerLibellula luctuosa12011,931222024
Eastern PondhawkErythemis simplicicollis11716,365152024
Stream BluetEnallagma exsulans934,803142024
Eastern ForktailIschnura verticalis8915,992112024
Eastern AmberwingPerithemis tenera8710,887192024
Common WhitetailPlathemis lydia8512,022102024
Ebony JewelwingCalopteryx maculata858,60682024
Blue DasherPachydiplax longipennis8215,60142024
Fragile ForktailIschnura posita7613,19962024
Blue-fronted DancerArgia apicalis696,584152024
Flag-tailed SpinylegDromogomphus spoliatus69809142024
Halloween PennantCelithemis eponina554,18782024
Violet DancerArgia fumipennis violacea557,55772024
Common Green DarnerAnax junius495,16072024
Blue-ringed DancerArgia sedula472,83782024
Slaty SkimmerLibellula incesta454,92072024
Prince BaskettailEpitheca princeps442,78882024
Double-striped BluetEnallagma basidens445,34342024
Powdered DancerArgia moesta395,14172024
Black SaddlebagsTramea lacerata363,38032024
Calico PennantCelithemis elisa333,19442024
Twelve-spotted SkimmerLibellula pulchella323,74032024
Gilded River CruiserMacromia pacifica3088102024
American RubyspotHetaerina americana294,44432024
Slender SpreadwingLestes rectangularis293,90402023
Skimming BluetEnallagma geminatum283,83222024
Autumn MeadowhawkSympetrum vicinum258,45642024
Familiar BluetEnallagma civile216,17332024
Swamp SpreadwingLestes vigilax2060842024
Black-shouldered SpinylegDromogomphus spinosus1967152024
Ashy ClubtailPhanogomphus lividus191,00902023
Turquoise BluetEnallagma divagans1991802022
Blue-faced MeadowhawkSympetrum ambiguum181,45212024
Fawn DarnerBoyeria vinosa1851912024
Shadow DarnerAeshna umbrosa161,18702022
Lilypad ForktailIschnura kellicotti1485842024
Westfall's Slender BluetEnallagma traviatum westfalli132,36712024
Wandering GliderPantala flavescens131,52312024
Unicorn ClubtailArigomphus villosipes122,06502023
Midland ClubtailGomphurus fraternus1292702023
DragonhunterHagenius brevistylus1158902023
Emerald SpreadwingLestes dryas1156702022
Orange BluetEnallagma signatum103,79132024
Lancet ClubtailPhanogomphus exilis101,80302021
Carolina SaddlebagsTramea carolina91,26322024
Ruby MeadowhawkSympetrum rubicundulum996502021
Pronghorn ClubtailPhanogomphus graslinellus850322024
Dot-tailed WhitefaceLeucorrhinia intacta81,70202023
Common BaskettailEpitheca cynosura687412024
Swift River CruiserMacromia illinoiensis676002021
Swamp DarnerEpiaeschna heros571502021
Macromia HybridMacromia pacifica x taeniolata410022024
Azure BluetEnallagma aspersum42,48802023
Citrine ForktailIschnura hastata496202021
Painted SkimmerLibellula semifasciata31,20802016
Royal River CruiserMacromia taeniolata359802021
Aurora DamselChromagrion conditum357602022
Rainbow BluetEnallagma antennatum348502021
Rapids ClubtailPhanogomphus quadricolor337702021
Cyrano DarnerNasiaeschna pentacantha332102023
Spangled SkimmerLibellula cyanea21,19702022
Spot-winged GliderPantala hymenaea256202017
Great Blue SkimmerLibellula vibrans250102021
Arrow ClubtailStylurus spiniceps232102005
Handsome ClubtailGomphurus crassus220902022
Dusky DancerArgia translata11,68102019
Band-winged MeadowhawkSympetrum semicinctum193101959
Vesper BluetEnallagma vesperum192202022
Spotted SpreadwingLestes congener186002020
Comet DarnerAnax longipes160502019
Tule BluetEnallagma carunculatum156901943
Springtime DarnerBasiaeschna janata137402019
White-faced MeadowhawkSympetrum obtrusum130501960
Four-spotted SkimmerLibellula quadrimaculata129502023
Plains ClubtailGomphurus externus123601990
Lyre-tipped SpreadwingLestes unguiculatus121001960


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
Jade ClubtailArigomphus submedianus1151126late Jun-late Aug
Cobra ClubtailGomphurus vastus4711513Jun
Blue CorporalLadona deplanata6011063May
Banded PennantCelithemis fasciata860823Jul
Great SpreadwingArchilestes grandis959633Sep
Gray PetaltailTachopteryx thoreyi446503Jun
Sweetflag SpreadwingLestes forcipatus514403Jul-Aug
Amber-winged SpreadwingLestes eurinus706193Jun-Jul
Southern SpreadwingLestes australis284183May
Arrowhead SpiketailZoraena obliqua189143late May-early Jun
Red SaddlebagsTramea onusta146113Jun-Jul
Eastern Red DamselAmphiagrion saucium1,420292late May-early Jun
Eastern RingtailErpetogomphus designatus177272Aug
Slender BaskettailEpitheca costalis2442late May
Spatterdock DarnerRhionaeschna mutata39632Jun
Mocha EmeraldSomatochlora linearis20222late Jun-late Aug
Paiute DancerArgia alberta369311Jun
Swift SetwingDythemis velox447231Jul-Aug
Seepage DancerArgia bipunctulata1,230211Jun-Jul
Russet-tipped ClubtailStylurus plagiatus390131Sep
Brown SpiketailZoraena bilineata24071late May-early Jun
Golden-winged SkimmerLibellula auripennis4541late Jun
Variegated MeadowhawkSympetrum corruptum14931Apr-Sep
Sedge SpriteNehalennia irene39611Jun
Clamp-tipped EmeraldSomatochlora tenebrosa21711Aug
Tiger SpiketailZoraena erronea12611Jul
Northern SpreadwingLestes disjunctus2411Jun-Aug
Elfin SkimmerNannothemis bella55500Jun-Jul
Lance-tipped DarnerAeshna constricta36100Sep
Green-striped DarnerAeshna verticalis34200Sep
Skillet ClubtailGomphurus ventricosus2600Jun
Wabash River CruiserMacromia wabashensis2500Aug

Darke County is located along the Indiana border, in the Till Plains ecoregion. Darke Co is a large county, the major land use is agriculture. Darke Co has the headwaters for Stillwater River, Greenville Creek, and a number of small feeders for the Wabash River and the Mississinewa River. Greenville Creek joins the Stillwater in Miami Co, and are tributaries of the Great Miami River. The Wabash flows north, the Mississinewa flows west into Indiana.

Places to Visit

  • Darke Co Wildlife Area

    DCWA has 6 small lakes and ponds. These are all fishing spots. Expect the typical stillwater skimmers and damselflies. 35 species are recorded for the area. There is good off-road parking and mowed paths. There are no restrooms.

  • Greenville Creek

    • Greenville Creek is a high quality stream with a number of access points. Several Clubtail and River Cruiser species can be seen in season. Stillwater River Water Trail Map shows access points, and facilities for Greenville Creek

    • A popular stop is Bear's Mill, good viewing from the dam area. Good parking and restrooms when the Mill is open. Bear's Mill is now part of Darke Co Parks.

    • Alice Bish Park has access to Greenville Creek with parking and walking paths.

  • Shawnee Prairie Preserve

    Shawnee Prairie has a wet prairie area and access to Mud Creek. Beaver Wetlands is nearby. Diverse habitat supports a diverse Odonata mix. 29 species have been found here. Shawnee Prairies is part of Darke Co Parks. There is parking and restrooms.

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.

Page updated 2 January 2025