Auglaize County

Known species county: 60
Total Observations county: 1,248
Population: 45,920
Area in Square Miles: 401
People per Square Mile: 114
Observations per Square Mile: 2.1
Percent of State Species: 35%
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.

Auglaize County Ohio

Observed Species

Common NameScientific NameAuglaize TotalOhio TotalAuglaize 2025Last Sighted
Familiar BluetEnallagma civile1407,43032025
Blue DasherPachydiplax longipennis13218,69282025
Eastern AmberwingPerithemis tenera12812,69352025
Eastern ForktailIschnura verticalis12718,54982025
Widow SkimmerLibellula luctuosa9014,355112025
Eastern PondhawkErythemis simplicicollis7919,53442025
Fragile ForktailIschnura posita5215,43232025
Common WhitetailPlathemis lydia4514,24342025
Prince BaskettailEpitheca princeps403,26432025
Orange BluetEnallagma signatum394,38032025
Blue-ringed DancerArgia sedula393,41602024
Blue-fronted DancerArgia apicalis327,71612025
Common Green DarnerAnax junius256,28902024
Black SaddlebagsTramea lacerata244,11012025
Halloween PennantCelithemis eponina235,02802024
Skimming BluetEnallagma geminatum234,46102024
Jade ClubtailArigomphus submedianus2212422025
Ebony JewelwingCalopteryx maculata2110,08422025
Double-striped BluetEnallagma basidens216,25602024
Blue-tipped DancerArgia tibialis195,37422025
Violet DancerArgia fumipennis violacea178,69302024
Stream BluetEnallagma exsulans155,54312025
Flag-tailed SpinylegDromogomphus spoliatus1293902023
American RubyspotHetaerina americana115,25002023
Unicorn ClubtailArigomphus villosipes92,31402022
Autumn MeadowhawkSympetrum vicinum510,59302022
Slender SpreadwingLestes rectangularis54,79702022
Royal River CruiserMacromia taeniolata567902019
Cyrano DarnerNasiaeschna pentacantha536602021
Powdered DancerArgia moesta36,02602021
Calico PennantCelithemis elisa33,70602018
Wandering GliderPantala flavescens31,90302019
Slaty SkimmerLibellula incesta25,91102023
Twelve-spotted SkimmerLibellula pulchella24,08002019
Westfall's Slender BluetEnallagma traviatum westfalli22,58902022
Shadow DarnerAeshna umbrosa21,35302017
Common BaskettailEpitheca cynosura21,06702023
Rainbow BluetEnallagma antennatum254001960
Turquoise BluetEnallagma divagans11,04312025
Springtime DarnerBasiaeschna janata146612025
Azure BluetEnallagma aspersum12,86302022
Dusky DancerArgia translata11,96202021
Blue-faced MeadowhawkSympetrum ambiguum11,92602022
Carolina SaddlebagsTramea carolina11,44402021
Citrine ForktailIschnura hastata11,23801975
Ashy ClubtailPhanogomphus lividus11,15001937
Vesper BluetEnallagma vesperum199902023
Ruby MeadowhawkSympetrum rubicundulum199101958
Swamp DarnerEpiaeschna heros184901937
Comet DarnerAnax longipes172402024
Emerald SpreadwingLestes dryas170802024
Tule BluetEnallagma carunculatum168501937
Spot-winged GliderPantala hymenaea166702021
Fawn DarnerBoyeria vinosa161501950
Sweetflag SpreadwingLestes forcipatus160501975
Pronghorn ClubtailPhanogomphus graslinellus156601961
Spatterdock DarnerRhionaeschna mutata144302021
Lyre-tipped SpreadwingLestes unguiculatus124701997
Red SaddlebagsTramea onusta119902018
Gilded River CruiserMacromia pacifica19201961


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
Great Blue SkimmerLibellula vibrans513296Jun-Jul
Lancet ClubtailPhanogomphus exilis2,034485early Jun
Swift River CruiserMacromia illinoiensis837435Jul-Aug
Spotted SpreadwingLestes congener1,06995late Aug-late Sep
Midland ClubtailGomphurus fraternus1,012464late May-mid Jun
Dot-tailed WhitefaceLeucorrhinia intacta1,915394early Jun
Painted SkimmerLibellula semifasciata1,355104May
Great SpreadwingArchilestes grandis1,13354Sep
DragonhunterHagenius brevistylus729423mid Jun
Swamp SpreadwingLestes vigilax706363Jul
Black-shouldered SpinylegDromogomphus spinosus763293Jun-Jul
Arrow ClubtailStylurus spiniceps341263late Aug-early Sep
Rapids ClubtailPhanogomphus quadricolor445103Jun
Handsome ClubtailGomphurus crassus22663late May-early Jun
Macromia HybridMacromia pacifica x taeniolata11063late Jul-mid Aug
White-faced MeadowhawkSympetrum obtrusum38343Sep
Eastern Red DamselAmphiagrion saucium1,600432late May-early Jun
Lilypad ForktailIschnura kellicotti961272Jun-Sep
Brown SpiketailZoraena bilineata247242late May-early Jun
Gray PetaltailTachopteryx thoreyi494232Jun
Tiger SpiketailZoraena erronea134142Jul
Band-winged MeadowhawkSympetrum semicinctum1,10692Jul-Aug
Spangled SkimmerLibellula cyanea1,30462Jun
Cobra ClubtailGomphurus vastus48642Jun
Mocha EmeraldSomatochlora linearis26342late Jun-late Aug
Four-spotted SkimmerLibellula quadrimaculata29722Jun
Arrowhead SpiketailZoraena obliqua20722late May-early Jun
Northern SpreadwingLestes disjunctus2422Jun-Aug
Elegant SpreadwingLestes inaequalis616361Jun
Dusky ClubtailPhanogomphus spicatus29851early Jun
Banded PennantCelithemis fasciata97741Jul
Aurora DamselChromagrion conditum70631late May-early Jun
Amber-winged SpreadwingLestes eurinus75921Jun-Jul
Southern SpreadwingLestes australis32911May
Clamp-tipped EmeraldSomatochlora tenebrosa25111Aug
Sedge SpriteNehalennia irene41400Jun
Green-striped DarnerAeshna verticalis39500Sep
Lance-tipped DarnerAeshna constricta36300Sep
Plains ClubtailGomphurus externus24400mid Jun-mid Jul
Variegated MeadowhawkSympetrum corruptum17000Apr-Sep
Green-faced ClubtailHylogomphus viridifrons9900mid Jun
Hagen's BluetEnallagma hageni8500Jun
Marsh BluetEnallagma ebrium6600mid Jun
Wabash River CruiserMacromia wabashensis2500Aug
Hine's EmeraldSomatochlora hineana2400Jun
Plains EmeraldSomatochlora ensigera1800Jul

Located within the Till Plains ecoregion, sections of the Auglaize River and Saint Mary’s River, including the eastern 1/4 of Grand Lake, are located within Auglaize County. Most of the county is in the Lake Erie Watershed. See pp. 11-12 in Ohio Coastal Atlas: Chapter 2 for a detailed watershed map. Water from Auglaize Co provides headwaters to St Marys River, Auglaize River, Scioto River, and the Great Miami River. The St Marys and Auglaize are both tributaries of the Maumee. Scioto water flows east, Great Miami water flows south. Auglaize Co also contains portions of Grand Lake St Marys and Lake Loramie.

Places to Visit

  • Grand Lake St Marys State Park

    The state park is on the east end of the lake. There is parking and restrooms. Expect skimmers and damselflies.

  • 40 Acre Pond Park

    Forty Acre Pond was created as a canal feeder. There is a dam at the north end and roadside parking on Glynwood Rd. A walking path goes north and south from Glynwood Rd. The pond is shallow and heavily vegetated. Along with normal skimmers, FAP also has a population of Jade Clubtails. 25 species recorded. No restrooms.

  • State Fish Hatchery

    Numerous fish hatching ponds are on the property adjacent to the east end of Grand Lake St Marys. There are drives that go between the ponds, visiting has limited hours. There is a parking lot at the north end for the archery range. 24 species recorded. No restrooms (but the state park is directly west).

  • K.C. Geiger Park, St Marys

    A city park with several water areas - The St Marys River, the Miami-Erie Canal, and a fishing pond. Skimmer and damselflies are at the pond and canal. 16 species recorded. The river has Darners and Cruisers in season.

  • Lake Loramie (Auglaize Co)

    A finger of Lake Loramie protrudes north across the Shelby-Auglaize county line along Rt 362. There are several parking areas that provide access. The area is mostly mown, but there are places for Odonata to perch. Expect a diverse still-water Odonata mix. Jade Clubtail, Unicorn Clubtail, and Flag-tailed Spinyleg can be found in the mix. Not every parking area has restrooms, but there are restrooms at the State Park.

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