Mahoning County

Known species: 71
Total Observations: 976
Population: 233,869
Area in Square Miles: 412
People per Square Mile: 550
Observations per Square Mile: 2.4

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.

Mahoning County Ohio

Observed Species

Common NameScientific NameMahoning TotalOhio TotalMahoning 2023Last Sighted
Common WhitetailPlathemis lydia719,898122023
Blue DasherPachydiplax longipennis6413,16992023
Widow SkimmerLibellula luctuosa5910,352132023
Eastern PondhawkErythemis simplicicollis5613,87082023
Eastern AmberwingPerithemis tenera538,819112023
Ebony JewelwingCalopteryx maculata517,16972023
Eastern ForktailIschnura verticalis4813,326122023
Slaty SkimmerLibellula incesta444,03262023
Blue-fronted DancerArgia apicalis365,69272023
Violet DancerArgia fumipennis violacea266,24772023
Autumn MeadowhawkSympetrum vicinum246,97142023
Twelve-spotted SkimmerLibellula pulchella243,37742023
Fragile ForktailIschnura posita2210,72742023
Blue-tipped DancerArgia tibialis213,78562023
American RubyspotHetaerina americana193,76142023
Stream BluetEnallagma exsulans194,09732023
Familiar BluetEnallagma civile185,11112023
Common Green DarnerAnax junius174,14642023
Unicorn ClubtailArigomphus villosipes171,68732023
Slender SpreadwingLestes rectangularis153,49212023
Black SaddlebagsTramea lacerata142,83932023
Prince BaskettailEpitheca princeps142,39022023
Azure BluetEnallagma aspersum142,11522023
Halloween PennantCelithemis eponina123,62802022
Band-winged MeadowhawkSympetrum semicinctum1286002020
Shadow DarnerAeshna umbrosa101,03132023
Spangled SkimmerLibellula cyanea101,03712023
Skimming BluetEnallagma geminatum83,10922023
Powdered DancerArgia moesta84,24712023
Orange BluetEnallagma signatum83,18402020
Double-striped BluetEnallagma basidens74,31322023
Elegant SpreadwingLestes inaequalis747902022
Dusky DancerArgia translata61,37612023
Fawn DarnerBoyeria vinosa644012023
Citrine ForktailIschnura hastata689902021
Calico PennantCelithemis elisa52,75212023
Dot-tailed WhitefaceLeucorrhinia intacta51,35712023
Tule BluetEnallagma carunculatum549812023
Mocha EmeraldSomatochlora linearis519212023
Painted SkimmerLibellula semifasciata51,05602022
Carolina SaddlebagsTramea carolina51,04802022
Great SpreadwingArchilestes grandis582402019
Wandering GliderPantala flavescens41,24122023
Lancet ClubtailPhanogomphus exilis41,51812023
Swamp DarnerEpiaeschna heros462002022
Royal River CruiserMacromia taeniolata453602022
Lance-tipped DarnerAeshna constricta435802022
Springtime DarnerBasiaeschna janata429802019
Ruby MeadowhawkSympetrum rubicundulum394201997
Common BaskettailEpitheca cynosura374802019
Emerald SpreadwingLestes dryas347902022
Spatterdock DarnerRhionaeschna mutata333502020
Arrowhead SpiketailCordulegaster obliqua317202018
Spot-winged GliderPantala hymenaea247812023
Spotted SpreadwingLestes congener273102022
Amber-winged SpreadwingLestes eurinus261002017
Aurora DamselChromagrion conditum247102019
Sedge SpriteNehalennia irene235902015
Eastern Least ClubtailStylogomphus albistylus226202014
Four-spotted SkimmerLibellula quadrimaculata128512023
Blue-ringed DancerArgia sedula12,36402018
Westfall's Slender BluetEnallagma traviatum westfalli11,99102008
Eastern Red DamselAmphiagrion saucium11,23001959
Ashy ClubtailPhanogomphus lividus187402019
Swamp SpreadwingLestes vigilax154401993
Comet DarnerAnax longipes151502022
Rainbow BluetEnallagma antennatum145801959
Cobra ClubtailGomphurus vastus137702011
Cyrano DarnerNasiaeschna pentacantha127702004
White-faced MeadowhawkSympetrum obtrusum127202018
Southern SpreadwingLestes australis125501960


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 vesperum740214Jun
Black-shouldered SpinylegDromogomphus spinosus54294Jun-Jul
Blue-faced MeadowhawkSympetrum ambiguum1,2041223late Aug-mid Sep
Sphagnum SpriteNehalennia gracilis3701133late Jun-early Jul
Lilypad ForktailIschnura kellicotti7331103Jun-Sep
Midland ClubtailGomphurus fraternus802793late May-mid Jun
Arrow ClubtailStylurus spiniceps305623late Aug-early Sep
Turquoise BluetEnallagma divagans768543May-Jun
Green-striped DarnerAeshna verticalis262393Sep
Swift River CruiserMacromia illinoiensis688313Jul-Aug
Black-tipped DarnerAeshna tuberculifera141263late Aug-early Sep
DragonhunterHagenius brevistylus439223mid Jun
Great Blue SkimmerLibellula vibrans467153Jun-Jul
Twin-spotted SpiketailCordulegaster maculata9083late May-mid Jun
Rapids ClubtailPhanogomphus quadricolor28773Jun
Delta-spotted SpiketailCordulegaster diastatops13163early Jun
Sweetflag SpreadwingLestes forcipatus443222Jul-Aug
Harlequin DarnerGomphaeschna furcillata10692late May-early Jun
Clamp-tipped EmeraldSomatochlora tenebrosa20852Aug
Racket-tailed EmeraldDorocordulia libera6452Jun
Red SaddlebagsTramea onusta14532Jun-Jul
Stream CruiserDidymops transversa12122May
Brush-tipped EmeraldSomatochlora walshii1622mid Jun-mid Jul
Plains ClubtailGomphurus externus1891391mid Jun-mid Jul
Seepage DancerArgia bipunctulata1,028171Jun-Jul
Hagen's BluetEnallagma hageni84151Jun
Frosted WhitefaceLeucorrhinia frigida29111early Jun
Beaverpond BaskettailEpitheca canis3881May
Rusty SnaketailOphiogomphus rupinsulensis24571Jun
American EmeraldCordulia shurtleffii1451May
Northern BluetEnallagma annexum6541Jun
Lyre-tipped SpreadwingLestes unguiculatus18031Jun-Jul
Lilypad ClubtailArigomphus furcifer11331early Jun
Splendid ClubtailGomphurus lineatifrons9531Jun
Variegated MeadowhawkSympetrum corruptum11721Apr-Sep
Tiger SpiketailCordulegaster erronea10621Jul
Gilded River CruiserMacromia pacifica7321late Jul
Gray PetaltailTachopteryx thoreyi39011Jun
Handsome ClubtailGomphurus crassus17011late May-early Jun
Macromia HybridMacromia pacifica x taeniolata9011late Jul-mid Aug
Marsh BluetEnallagma ebrium6611mid Jun
Ocellated DarnerBoyeria grafiana5011Sep
Wabash River CruiserMacromia wabashensis2511Aug
Slender BaskettailEpitheca costalis1911late May
Banded PennantCelithemis fasciata68400Jul
Pronghorn ClubtailPhanogomphus graslinellus45100late May-early Jun
Dusky ClubtailPhanogomphus spicatus19100early Jun
Southern Pygmy ClubtailLanthus vernalis11300late May-early Jun
River JewelwingCalopteryx aequabilis7700early Jun
Chalk-fronted CorporalLadona julia5900late May
Riffle SnaketailOphiogomphus carolus3500mid Jun
Northern SpreadwingLestes disjunctus2400Jun-Aug
Cherry-faced MeadowhawkSympetrum internum1400Sep
Northern Pygmy ClubtailLanthus parvulus700Jun
Umber ShadowdragonNeurocordulia obsoleta600Jun
Taiga BluetCoenagrion resolutum400

Mahoning County is located in the Unglaciated Allegheny Plateau

County Observation Activity

This graph shows the total number of odonata observations for the county in brown, with the average for all Ohio counties in blue. The season is divided into 10 or 11 day segments by Month – basically early-month, mid-month, and late-month.

Page updated 18 January 2024