Lake County

Known species: 113
Total Observations: 7,322
Population: 229,857
Area in Square Miles: 227 (smallest in the state)g
People per Square Mile: 239
Observations per Square Mile: 27.3
Percent of State Species: 65%
Percent of State Observations:
2.8%

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.

Lake County Ohio

Observed Species

Common NameScientific NameLake TotalOhio TotalLake 2024Last Sighted
Eastern ForktailIschnura verticalis38415,992542024
Blue DasherPachydiplax longipennis36915,601452024
Powdered DancerArgia moesta3475,141582024
Eastern PondhawkErythemis simplicicollis31616,365632024
Common WhitetailPlathemis lydia31612,022472024
Fragile ForktailIschnura posita22813,199372024
American RubyspotHetaerina americana2274,444392024
Autumn MeadowhawkSympetrum vicinum2248,456392024
Common Green DarnerAnax junius2195,160512024
Ebony JewelwingCalopteryx maculata2138,606452024
Widow SkimmerLibellula luctuosa20711,931292024
Eastern Least ClubtailStylogomphus albistylus201329342024
Familiar BluetEnallagma civile1976,173632024
Eastern AmberwingPerithemis tenera18310,887342024
Slaty SkimmerLibellula incesta1664,920212024
Slender SpreadwingLestes rectangularis1463,90422024
Twelve-spotted SkimmerLibellula pulchella1373,74082024
Stream BluetEnallagma exsulans1324,80392024
Rusty SnaketailOphiogomphus rupinsulensis118348432024
Dot-tailed WhitefaceLeucorrhinia intacta1181,702272024
Violet DancerArgia fumipennis violacea1167,557112024
Spotted SpreadwingLestes congener114860132024
Azure BluetEnallagma aspersum1082,488102024
Amber-winged SpreadwingLestes eurinus99706172024
Sedge SpriteNehalennia irene94396152024
Aurora DamselChromagrion conditum89576222024
Splendid ClubtailGomphurus lineatifrons82139362024
Blue-fronted DancerArgia apicalis806,58422024
Black-shouldered SpinylegDromogomphus spinosus7767192024
Black SaddlebagsTramea lacerata753,380132024
Wandering GliderPantala flavescens741,523102024
Orange BluetEnallagma signatum723,791122024
Green-faced ClubtailHylogomphus viridifrons7198392024
Lancet ClubtailPhanogomphus exilis671,80342024
Spatterdock DarnerRhionaeschna mutata61396102024
Skimming BluetEnallagma geminatum603,832102024
Rapids ClubtailPhanogomphus quadricolor57377152024
Sweetflag SpreadwingLestes forcipatus5651422024
Ruby MeadowhawkSympetrum rubicundulum5496502022
Painted SkimmerLibellula semifasciata521,20852024
Shadow DarnerAeshna umbrosa511,18732024
Prince BaskettailEpitheca princeps482,78862024
Gray PetaltailTachopteryx thoreyi4844632024
Unicorn ClubtailArigomphus villosipes472,06582024
Blue-ringed DancerArgia sedula452,83702023
DragonhunterHagenius brevistylus4358992024
Lilypad ClubtailArigomphus furcifer4213792024
Spot-winged GliderPantala hymenaea40562102024
Calico PennantCelithemis elisa393,19412024
Halloween PennantCelithemis eponina384,18742024
Black-tipped DarnerAeshna tuberculifera3616352024
Blue-tipped DancerArgia tibialis344,49252024
Arrowhead SpiketailZoraena obliqua3418902023
Dusky DancerArgia translata331,68182024
Carolina SaddlebagsTramea carolina331,26372024
Riffle SnaketailOphiogomphus carolus3245102024
Variegated MeadowhawkSympetrum corruptum30149132024
Westfall's Slender BluetEnallagma traviatum westfalli302,36722024
Turquoise BluetEnallagma divagans3091822024
Common BaskettailEpitheca cynosura3087412024
Swamp DarnerEpiaeschna heros2771522024
Eastern Red DamselAmphiagrion saucium251,42062024
Ashy ClubtailPhanogomphus lividus251,00932024
Swamp SpreadwingLestes vigilax2560802023
Ocellated DarnerBoyeria grafiana255302021
Sphagnum SpriteNehalennia gracilis2444362024
Midland ClubtailGomphurus fraternus2492722024
Great SpreadwingArchilestes grandis2495902022
Fawn DarnerBoyeria vinosa2351902023
Swift River CruiserMacromia illinoiensis1976042024
Tiger SpiketailZoraena erronea1812672024
Clamp-tipped EmeraldSomatochlora tenebrosa1821712024
Northern BluetEnallagma annexum187112024
Green-striped DarnerAeshna verticalis1734232024
Four-spotted SkimmerLibellula quadrimaculata1729502023
Lyre-tipped SpreadwingLestes unguiculatus1721002023
Blue-faced MeadowhawkSympetrum ambiguum161,45202020
Southern SpreadwingLestes australis1528402018
Beaverpond BaskettailEpitheca canis156302022
Elegant SpreadwingLestes inaequalis1458002023
Citrine ForktailIschnura hastata1396202019
Band-winged MeadowhawkSympetrum semicinctum1393102018
Double-striped BluetEnallagma basidens125,34302021
Lance-tipped DarnerAeshna constricta1236102003
Mocha EmeraldSomatochlora linearis1120212024
Comet DarnerAnax longipes960502019
Vesper BluetEnallagma vesperum892202023
Rainbow BluetEnallagma antennatum848502017
Springtime DarnerBasiaeschna janata737402021
Stream CruiserDidymops transversa614002022
Great Blue SkimmerLibellula vibrans450102020
White-faced MeadowhawkSympetrum obtrusum430502015
Marsh BluetEnallagma ebrium46601996
Tule BluetEnallagma carunculatum356902022
Cyrano DarnerNasiaeschna pentacantha332102019
Dusky ClubtailPhanogomphus spicatus325802018
Twin-spotted SpiketailZoraena maculata39502023
Northern SpreadwingLestes disjunctus32401980
Band-winged DragonletErythrodiplax umbrata31602007
Emerald SpreadwingLestes dryas256702021
Delta-spotted SpiketailZoraena diastatops214202001
Golden-winged SkimmerLibellula auripennis24502022
Boreal BluetEnallagma boreale24401975
Lilypad ForktailIschnura kellicotti185802018
Flag-tailed SpinylegDromogomphus spoliatus180901975
Russet-tipped ClubtailStylurus plagiatus139002009
Arrow ClubtailStylurus spiniceps132102002
Red SaddlebagsTramea onusta114601975
Southern Pygmy ClubtailLanthus vernalis112102009
Hagen's BluetEnallagma hageni18501980
Racket-tailed EmeraldDorocordulia libera16602011
Uhler's SundragonHelocordulia uhleri16302002
Slender BaskettailEpitheca costalis12402019


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
Harlequin DarnerGomphaeschna furcillata126862late May-early Jun
Spangled SkimmerLibellula cyanea1,197322Jun
Royal River CruiserMacromia taeniolata59862late Jul-Aug
River JewelwingCalopteryx aequabilis81581early Jun
Laura's ClubtailStylurus laurae51131late Jul-early Sep
Rambur's ForktailIschnura ramburii1551Jul
Macromia HybridMacromia pacifica x taeniolata10031late Jul-mid Aug
Brush-tipped EmeraldSomatochlora walshii1721mid Jun-mid Jul
Northern Pygmy ClubtailLanthus parvulus721Jun
Cobra ClubtailGomphurus vastus47111Jun
Chalk-fronted CorporalLadona julia5911late May
Canada DarnerAeshna canadensis4100Sep
Frosted WhitefaceLeucorrhinia frigida2900early Jun
American EmeraldCordulia shurtleffii1400May
Taiga BluetCoenagrion resolutum400
Taper-tailed DarnerGomphaeschna antilope300Jun

Located along the eastern shore of Lake Erie, the Portage Escarpment parallels the lake shore, dividing Lake County between two ecoregions. The section along the lake is within the Erie Lake Plain region, and the southern part of the county is in the northern edge of the Glaciated Allegheny Plateau. The Grand River enters the county in the east, flowing westward along the escarpment and making a 90 degree turn to the north, zigzagging towards the lake. The county is entirely within the Lake Erie Watershed (See p. 12 in Ohio Coastal Atlas: Chapter 2 for a detailed watershed map).

Places to Visit

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