Ariel-Foundation Park in Mount Vernon

Knox County

Known species: 78
Total Observations: 1,406
Population: 60,810
Area in Square Miles: 525
People per Square Mile: 115
Observations per Square Mile: 2.4
Percent of State Species: 45%
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.

Knox County Ohio

Observed Species

Common NameScientific NameKnox TotalOhio TotalKnox 2024Last Sighted
Blue-fronted DancerArgia apicalis1286,584112024
Eastern PondhawkErythemis simplicicollis12516,36572024
Blue DasherPachydiplax longipennis10515,601142024
Widow SkimmerLibellula luctuosa9411,93132024
Fragile ForktailIschnura posita8213,199232024
Eastern ForktailIschnura verticalis7115,992112024
Eastern AmberwingPerithemis tenera6410,88772024
Ebony JewelwingCalopteryx maculata618,60662024
Common WhitetailPlathemis lydia5212,02252024
Stream BluetEnallagma exsulans484,80332024
Double-striped BluetEnallagma basidens425,34312024
American RubyspotHetaerina americana354,44442024
Blue-ringed DancerArgia sedula322,83742024
Blue-tipped DancerArgia tibialis324,49222024
Fawn DarnerBoyeria vinosa3151952024
Autumn MeadowhawkSympetrum vicinum318,45632024
Powdered DancerArgia moesta285,14122024
Orange BluetEnallagma signatum243,79132024
Slender SpreadwingLestes rectangularis223,90442024
Prince BaskettailEpitheca princeps222,78842024
Violet DancerArgia fumipennis violacea217,55722024
Familiar BluetEnallagma civile206,17352024
Dusky DancerArgia translata181,68152024
Common Green DarnerAnax junius175,16052024
Halloween PennantCelithemis eponina164,18732024
Twelve-spotted SkimmerLibellula pulchella163,74012024
Skimming BluetEnallagma geminatum123,83232024
Azure BluetEnallagma aspersum112,48852024
Black SaddlebagsTramea lacerata113,38012024
Midland ClubtailGomphurus fraternus1092702021
Westfall's Slender BluetEnallagma traviatum westfalli92,36712024
Ashy ClubtailPhanogomphus lividus81,00902023
Wandering GliderPantala flavescens71,52332024
Ruby MeadowhawkSympetrum rubicundulum696501994
Common BaskettailEpitheca cynosura687402019
Shadow DarnerAeshna umbrosa51,18712024
Lancet ClubtailPhanogomphus exilis51,80302020
Lilypad ForktailIschnura kellicotti585802018
Swift River CruiserMacromia illinoiensis576002008
Spatterdock DarnerRhionaeschna mutata539602021
Calico PennantCelithemis elisa43,19412024
Rapids ClubtailPhanogomphus quadricolor437702023
Springtime DarnerBasiaeschna janata437401988
Carolina SaddlebagsTramea carolina31,26322024
Blue-faced MeadowhawkSympetrum ambiguum31,45212024
Unicorn ClubtailArigomphus villosipes32,06501994
Amber-winged SpreadwingLestes eurinus370602021
Spot-winged GliderPantala hymenaea256212024
Dot-tailed WhitefaceLeucorrhinia intacta21,70201991
Spangled SkimmerLibellula cyanea21,19701898
Black-shouldered SpinylegDromogomphus spinosus267102023
Swamp SpreadwingLestes vigilax260802008
Comet DarnerAnax longipes260502018
Sweetflag SpreadwingLestes forcipatus251402021
Rainbow BluetEnallagma antennatum248501936
Stygian ShadowdragonNeurocordulia yamaskanensis26801987
Band-winged MeadowhawkSympetrum semicinctum193112024
Mocha EmeraldSomatochlora linearis120212024
Macromia HybridMacromia pacifica x taeniolata110012024
Slaty SkimmerLibellula incesta14,92002003
Eastern Red DamselAmphiagrion saucium11,42001936
Painted SkimmerLibellula semifasciata11,20801956
Great SpreadwingArchilestes grandis195902021
Spotted SpreadwingLestes congener186002019
Flag-tailed SpinylegDromogomphus spoliatus180902020
Swamp DarnerEpiaeschna heros171501965
DragonhunterHagenius brevistylus158901900
Elegant SpreadwingLestes inaequalis158001961
Aurora DamselChromagrion conditum157601994
Great Blue SkimmerLibellula vibrans150102015
Cobra ClubtailGomphurus vastus147101956
Sphagnum SpriteNehalennia gracilis144301936
Sedge SpriteNehalennia irene139602008
Rusty SnaketailOphiogomphus rupinsulensis134801975
Eastern Least ClubtailStylogomphus albistylus132901989
Four-spotted SkimmerLibellula quadrimaculata129501937
Clamp-tipped EmeraldSomatochlora tenebrosa121702007
Saffron-winged MeadowhawkSympetrum costiferum12001957


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
Citrine ForktailIschnura hastata962316Jun-Aug
Emerald SpreadwingLestes dryas567365Jun
Royal River CruiserMacromia taeniolata598105late Jul-Aug
Black-tipped DarnerAeshna tuberculifera16375late Aug-early Sep
Gray PetaltailTachopteryx thoreyi446354Jun
Southern SpreadwingLestes australis28494May
Arrow ClubtailStylurus spiniceps32164late Aug-early Sep
Cyrano DarnerNasiaeschna pentacantha32164mid Jun
Arrowhead SpiketailZoraena obliqua18954late May-early Jun
Vesper BluetEnallagma vesperum922143Jun
Green-striped DarnerAeshna verticalis34263Sep
Red SaddlebagsTramea onusta14663Jun-Jul
Turquoise BluetEnallagma divagans91843May-Jun
Twin-spotted SpiketailZoraena maculata9543late May-mid Jun
Smoky RubyspotHetaerina titia3772042early Sep
Tule BluetEnallagma carunculatum569192Jun-Jul
Dusky ClubtailPhanogomphus spicatus25872early Jun
Blue CorporalLadona deplanata60132May
Tiger SpiketailZoraena erronea12632Jul
Banded PennantCelithemis fasciata86022Jul
Pronghorn ClubtailPhanogomphus graslinellus50322late May-early Jun
Variegated MeadowhawkSympetrum corruptum14922Apr-Sep
Laura's ClubtailStylurus laurae51191late Jul-early Sep
Lance-tipped DarnerAeshna constricta36161Sep
Delta-spotted SpiketailZoraena diastatops14221early Jun
Swift SetwingDythemis velox44711Jul-Aug
Russet-tipped ClubtailStylurus plagiatus39011Sep
Gilded River CruiserMacromia pacifica8811late Jul
Wabash River CruiserMacromia wabashensis2511Aug
Cherry-faced MeadowhawkSympetrum internum1411Sep
Furtive ForktailIschnura prognata511
White-faced MeadowhawkSympetrum obtrusum30500Sep
Brown SpiketailZoraena bilineata24000late May-early Jun
Lyre-tipped SpreadwingLestes unguiculatus21000Jun-Jul
Handsome ClubtailGomphurus crassus20900late May-early Jun
Splendid ClubtailGomphurus lineatifrons13900Jun
Elusive ClubtailStylurus notatus13700Sep
Lilypad ClubtailArigomphus furcifer13700early Jun
Green-faced ClubtailHylogomphus viridifrons9800mid Jun
Hagen's BluetEnallagma hageni8500Jun
Marsh BluetEnallagma ebrium6600mid Jun
Skillet ClubtailGomphurus ventricosus2600Jun
Northern SpreadwingLestes disjunctus2400Jun-Aug
Smoky ShadowdragonNeurocordulia molesta1800Jun
Northern Pygmy ClubtailLanthus parvulus700Jun
Appalachian JewelwingCalopteryx angustipennis400
Spine-crowned ClubtailHylogomphus abbreviatus300Jun

Knox County is almost entirely within the Glaciated Allegheny Plateau ecoregion. The terminal moraine parallels the eastern county line, leaving a small unglaciated section in the NE corner. Known for its scenic rivers, the Mohican closely flows north to south along the eastern edge of the county, and the Kokosing, which rises in neighboring Morrow County, flows all the way across the county from west to east. These two rivers meet just to the east, in Coshocton County. The North Fork Licking River cuts across the county’s SW corner.

Places to Visit

  • Ariel-Foundation Park, Mount Vernon, is a 250-acre park created on the former site of a glass-making factory. The park encompasses 3 lakes, and is contiguous with a paved trail that provides access to the south bank of the Kokosing River. 32 species have been identified.

  • Kokosing Lake Wildlife Area, .5 miles northwest of Fredericktown and five miles northeast of Chesterville (NW corner of county). 15 species have been identified.
  • Knox Lake Wildlife Area, a 756-acre property about 1½ miles northeast of Fredericktown. The topography is flat to slightly rolling. Most of the area is comprised of water area. The reservoir is 469 acres in size and has 11.4 miles of shoreline. 17 species have been identified.

Kokosing River Access

Mohican River Access

  • Extended access to the east bank of the Mohican River is possible in Brinkhaven Park, in the village of Brinkhaven, on SR-62 in the NE corner of the county.  The Mohican here has and area of whitewater riffles, and deep, clear pools.  The 19th century low head dam was knocked down by ODNR in late 2023.  The Knox County Park District leases this land from ODNR, and has plans to continue its development. 
  • Mohican Water Trail Access,16606 Hunter Road, Brinkhaven 43006, located under the covered Bridge of Dreams.
  • Mohican River Wildlife Area straddles the Knox Coshocton line, and is accessible from an unmarked parking pulloff on Coshocton CR 386. This unimproved site provides extended access to the east bank of the Mohican, but has apparently not yet been explored by the oda community.

  • Mohican State Scenic River Designation Study. This is a 55 page ODNR analysis of the Clear Fork/Mohican River created in 2006 leading up to its inclusion into Ohio’s Scenic Rivers System.  It provides an overview of the human and natural histories of the Mohican River and its tributary creeks, and includes detailed maps. 
  • Mohican River Water Trail Guide from ODNR.

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