Preble County

Known species: 62
Total Observations: 1,461
Population: 41,732
Area in Square Miles: 424
People per Square Mile: 98
Observations per Square Mile: 2.6
Percent of State Species: 36%
Percent of State Observations:
0.5%

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.

Preble County Ohio

Observed Species

Common NameScientific NamePreble TotalOhio TotalPreble 2025Last Sighted
Widow SkimmerLibellula luctuosa16214,355392025
Eastern PondhawkErythemis simplicicollis16019,534332025
Blue DasherPachydiplax longipennis8218,692182025
Eastern ForktailIschnura verticalis7918,54932025
Double-striped BluetEnallagma basidens756,25652025
Eastern AmberwingPerithemis tenera7212,693112025
Fragile ForktailIschnura posita7115,432122025
Common WhitetailPlathemis lydia6314,243162025
Ebony JewelwingCalopteryx maculata5910,08422025
Violet DancerArgia fumipennis violacea588,693102025
Prince BaskettailEpitheca princeps453,26492025
Blue-fronted DancerArgia apicalis437,71672025
Familiar BluetEnallagma civile437,43042025
Orange BluetEnallagma signatum424,38022025
Slaty SkimmerLibellula incesta395,911262025
Pronghorn ClubtailPhanogomphus graslinellus3356602023
Halloween PennantCelithemis eponina275,02882025
Blue-ringed DancerArgia sedula253,41612025
Stream BluetEnallagma exsulans235,54332025
Westfall's Slender BluetEnallagma traviatum westfalli212,58912025
Calico PennantCelithemis elisa203,70622025
Common Green DarnerAnax junius186,28982025
Black SaddlebagsTramea lacerata174,11052025
Springtime DarnerBasiaeschna janata1646632025
Blue-tipped DancerArgia tibialis155,37422025
Fawn DarnerBoyeria vinosa1361501986
Wandering GliderPantala flavescens121,90322025
American RubyspotHetaerina americana95,25002023
Twelve-spotted SkimmerLibellula pulchella94,08002022
Flag-tailed SpinylegDromogomphus spoliatus993902024
Blue CorporalLadona deplanata869612025
Common BaskettailEpitheca cynosura71,06742025
Autumn MeadowhawkSympetrum vicinum710,59312025
Powdered DancerArgia moesta76,02602023
Slender SpreadwingLestes rectangularis74,79702023
Vesper BluetEnallagma vesperum799902022
Azure BluetEnallagma aspersum62,86302023
Swift SetwingDythemis velox559252025
Jade ClubtailArigomphus submedianus512422025
Skimming BluetEnallagma geminatum54,46102022
Carolina SaddlebagsTramea carolina41,44402022
Comet DarnerAnax longipes372412025
Blue-faced MeadowhawkSympetrum ambiguum31,92602022
Citrine ForktailIschnura hastata31,23802022
Unicorn ClubtailArigomphus villosipes22,31402021
Dusky DancerArgia translata21,96202023
Ashy ClubtailPhanogomphus lividus21,15002023
Black-shouldered SpinylegDromogomphus spinosus276302018
Royal River CruiserMacromia taeniolata267902022
Arrowhead SpiketailZoraena obliqua220702022
Spot-winged GliderPantala hymenaea166712025
Spangled SkimmerLibellula cyanea11,30402022
Great SpreadwingArchilestes grandis11,13301931
Midland ClubtailGomphurus fraternus11,01202018
Swift River CruiserMacromia illinoiensis183702018
DragonhunterHagenius brevistylus172902020
Swamp SpreadwingLestes vigilax170602019
Rainbow BluetEnallagma antennatum154002019
White-faced MeadowhawkSympetrum obtrusum138301980
Cyrano DarnerNasiaeschna pentacantha136602018
Southern SpreadwingLestes australis132902020
Slender BaskettailEpitheca costalis12802022


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
Spotted SpreadwingLestes congener1,0691063late Aug-late Sep
Shadow DarnerAeshna umbrosa1,353613Sep-Oct
Painted SkimmerLibellula semifasciata1,355373May
Swamp DarnerEpiaeschna heros849243late May-early Jun
Emerald SpreadwingLestes dryas708223Jun
Great Blue SkimmerLibellula vibrans513133Jun-Jul
Cobra ClubtailGomphurus vastus4861122Jun
Banded PennantCelithemis fasciata9771072Jul
Rapids ClubtailPhanogomphus quadricolor445942Jun
Eastern RingtailErpetogomphus designatus240812Aug
Handsome ClubtailGomphurus crassus226442late May-early Jun
Sweetflag SpreadwingLestes forcipatus605392Jul-Aug
Gilded River CruiserMacromia pacifica92362late Jul
Ruby MeadowhawkSympetrum rubicundulum991212Jul-Aug
Turquoise BluetEnallagma divagans1,043202May-Jun
Amber-winged SpreadwingLestes eurinus759172Jun-Jul
Lancet ClubtailPhanogomphus exilis2,034152early Jun
Russet-tipped ClubtailStylurus plagiatus461152Sep
Red SaddlebagsTramea onusta199102Jun-Jul
Macromia HybridMacromia pacifica x taeniolata11082late Jul-mid Aug
Four-spotted SkimmerLibellula quadrimaculata29762Jun
Plains ClubtailGomphurus externus24442mid Jun-mid Jul
Arrow ClubtailStylurus spiniceps34132late Aug-early Sep
Gray PetaltailTachopteryx thoreyi494411Jun
Paiute DancerArgia alberta403361Jun
Eastern Red DamselAmphiagrion saucium1,600311late May-early Jun
Seepage DancerArgia bipunctulata1,464221Jun-Jul
Band-winged MeadowhawkSympetrum semicinctum1,106161Jul-Aug
Lilypad ForktailIschnura kellicotti961151Jun-Sep
Dot-tailed WhitefaceLeucorrhinia intacta1,915111early Jun
Golden-winged SkimmerLibellula auripennis4641late Jun
Aurora DamselChromagrion conditum70631late May-early Jun
Variegated MeadowhawkSympetrum corruptum17031Apr-Sep
Tule BluetEnallagma carunculatum68511Jun-Jul
Spatterdock DarnerRhionaeschna mutata44311Jun
Sedge SpriteNehalennia irene41411Jun
Mocha EmeraldSomatochlora linearis26311late Jun-late Aug
Clamp-tipped EmeraldSomatochlora tenebrosa25111Aug
Lance-tipped DarnerAeshna constricta36300Sep
Brown SpiketailZoraena bilineata24700late May-early Jun
Lyre-tipped SpreadwingLestes unguiculatus24700Jun-Jul
Stream CruiserMacromia transversa16300May
Skillet ClubtailGomphurus ventricosus2600Jun
Wabash River CruiserMacromia wabashensis2500Aug

Located entirely in the Till Plains, Preble County borders Indiana. Most of the county is within the The Great Miami River watershed. It has no major rivers.

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 13 January 2026