Ariel-Foundation Park in Mount Vernon

Knox County

Known species: 83
Total Observations: 1,726
Population: 60,810
Area in Square Miles: 525
People per Square Mile: 115
Observations per Square Mile: 2.4
Percent of State Species: 48%
Percent of State Observations:
0.6%

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 2025Last Sighted
Blue-fronted DancerArgia apicalis1427,716142025
Eastern PondhawkErythemis simplicicollis13419,53492025
Blue DasherPachydiplax longipennis11418,69292025
Widow SkimmerLibellula luctuosa10014,35562025
Fragile ForktailIschnura posita9115,43292025
Eastern ForktailIschnura verticalis7718,54962025
Eastern AmberwingPerithemis tenera7312,69392025
Ebony JewelwingCalopteryx maculata7210,084112025
Stream BluetEnallagma exsulans635,543152025
Common WhitetailPlathemis lydia6314,243112025
American RubyspotHetaerina americana575,250222025
Double-striped BluetEnallagma basidens546,256122025
Powdered DancerArgia moesta506,026222025
Dusky DancerArgia translata451,962272025
Blue-tipped DancerArgia tibialis445,374122025
Blue-ringed DancerArgia sedula433,416112025
Autumn MeadowhawkSympetrum vicinum3610,59352025
Familiar BluetEnallagma civile337,430132025
Slender SpreadwingLestes rectangularis334,797112025
Fawn DarnerBoyeria vinosa3361522025
Violet DancerArgia fumipennis violacea278,69362025
Orange BluetEnallagma signatum264,38022025
Prince BaskettailEpitheca princeps253,26432025
Halloween PennantCelithemis eponina225,02862025
Common Green DarnerAnax junius226,28952025
Twelve-spotted SkimmerLibellula pulchella204,08042025
Skimming BluetEnallagma geminatum174,46152025
Black SaddlebagsTramea lacerata144,11032025
Westfall's Slender BluetEnallagma traviatum westfalli132,58942025
Azure BluetEnallagma aspersum132,86322025
Common BaskettailEpitheca cynosura121,06762025
Midland ClubtailGomphurus fraternus111,01212025
Shadow DarnerAeshna umbrosa101,35352025
Ashy ClubtailPhanogomphus lividus101,15022025
Wandering GliderPantala flavescens91,90322025
Slaty SkimmerLibellula incesta75,91162025
Lancet ClubtailPhanogomphus exilis62,03412025
Ruby MeadowhawkSympetrum rubicundulum699101994
Unicorn ClubtailArigomphus villosipes52,31422025
Calico PennantCelithemis elisa53,70612025
Lilypad ForktailIschnura kellicotti596102018
Swift River CruiserMacromia illinoiensis583702008
Spatterdock DarnerRhionaeschna mutata544302021
Spotted SpreadwingLestes congener41,06932025
Spot-winged GliderPantala hymenaea466722025
Springtime DarnerBasiaeschna janata446601988
Rapids ClubtailPhanogomphus quadricolor444502023
Great SpreadwingArchilestes grandis31,13322025
Flag-tailed SpinylegDromogomphus spoliatus393922025
Comet DarnerAnax longipes372412025
Blue-faced MeadowhawkSympetrum ambiguum31,92602024
Carolina SaddlebagsTramea carolina31,44402024
Amber-winged SpreadwingLestes eurinus375902021
Vesper BluetEnallagma vesperum299922025
Rusty SnaketailOphiogomphus rupinsulensis242812025
Mocha EmeraldSomatochlora linearis226312025
Dot-tailed WhitefaceLeucorrhinia intacta21,91501991
Spangled SkimmerLibellula cyanea21,30401898
Black-shouldered SpinylegDromogomphus spinosus276302023
Swamp SpreadwingLestes vigilax270602008
Sweetflag SpreadwingLestes forcipatus260502021
Rainbow BluetEnallagma antennatum254001936
Stygian ShadowdragonNeurocordulia yamaskanensis27401987
Citrine ForktailIschnura hastata11,23812025
Arrow ClubtailStylurus spiniceps134112025
Tiger SpiketailZoraena erronea113412025
Green-faced ClubtailHylogomphus viridifrons19912025
Eastern Red DamselAmphiagrion saucium11,60001936
Painted SkimmerLibellula semifasciata11,35501956
Band-winged MeadowhawkSympetrum semicinctum11,10602024
Swamp DarnerEpiaeschna heros184901965
DragonhunterHagenius brevistylus172901900
Aurora DamselChromagrion conditum170601994
Elegant SpreadwingLestes inaequalis161601961
Sphagnum SpriteNehalennia gracilis151401936
Great Blue SkimmerLibellula vibrans151302015
Cobra ClubtailGomphurus vastus148601956
Sedge SpriteNehalennia irene141402008
Eastern Least ClubtailStylogomphus albistylus138201989
Four-spotted SkimmerLibellula quadrimaculata129701937
Clamp-tipped EmeraldSomatochlora tenebrosa125102007
Macromia HybridMacromia pacifica x taeniolata111002024
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
Emerald SpreadwingLestes dryas708505Jun
Royal River CruiserMacromia taeniolata679125late Jul-Aug
Southern SpreadwingLestes australis329115May
Red SaddlebagsTramea onusta199105Jun-Jul
Black-tipped DarnerAeshna tuberculifera18185late Aug-early Sep
Gray PetaltailTachopteryx thoreyi494394Jun
Turquoise BluetEnallagma divagans1,043104May-Jun
Cyrano DarnerNasiaeschna pentacantha36684mid Jun
Arrowhead SpiketailZoraena obliqua20754late May-early Jun
Tule BluetEnallagma carunculatum685203Jun-Jul
Green-striped DarnerAeshna verticalis39563Sep
Twin-spotted SpiketailZoraena maculata9953late May-mid Jun
Smoky RubyspotHetaerina titia4212442early Sep
Lance-tipped DarnerAeshna constricta36372Sep
Dusky ClubtailPhanogomphus spicatus29872early Jun
Banded PennantCelithemis fasciata97752Jul
Blue CorporalLadona deplanata69632May
Pronghorn ClubtailPhanogomphus graslinellus56622late May-early Jun
Variegated MeadowhawkSympetrum corruptum17022Apr-Sep
Laura's ClubtailStylurus laurae52201late Jul-early Sep
Swift SetwingDythemis velox59221Jul-Aug
Delta-spotted SpiketailZoraena diastatops15021early Jun
Russet-tipped ClubtailStylurus plagiatus46111Sep
Gilded River CruiserMacromia pacifica9211late Jul
Wabash River CruiserMacromia wabashensis2511Aug
Cherry-faced MeadowhawkSympetrum internum1411Sep
Furtive ForktailIschnura prognata411
White-faced MeadowhawkSympetrum obtrusum38300Sep
Brown SpiketailZoraena bilineata24700late May-early Jun
Lyre-tipped SpreadwingLestes unguiculatus24700Jun-Jul
Handsome ClubtailGomphurus crassus22600late May-early Jun
Elusive ClubtailStylurus notatus20500Sep
Lilypad ClubtailArigomphus furcifer15300early Jun
Splendid ClubtailGomphurus lineatifrons14100Jun
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. 34 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. 18 species have been identified.

  • Brown Family Environmental Center 10115 Laymon Road, Gambier 43022.  The center is a  a 610-acre preserve with 11 miles of trail. 4 tiny ponds next to the parking area on Laymon Road are easily accessed. This property is adjacent to one of the launch sites on the Kokosing Water Trail. providing access to the Kokosing River. 20 species have been identified in this area. 

Kokosing River Access

  • Kokosing Gap Canoe Access, 17812 Lower Gambier Road, Mount Vernon 43050 
  • Kokosing Water Trail. providing access to the Kokosing River. Maps & Guides
  • Zuck Riparian Preserve, 28300 Zuck Road, Howard 43028, 14.5 acres in three parcels along the Kokosing River upstream from the Riley Chapel Road water access and the Bat Nest Park property with 1,500 feet of river frontage.
  • Riley Chapel Road Access, 10300 Riley Chapel Road, Walhonding 43843 

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 an area of whitewater riffles, and deep, clear pools.  The 19th century low head dam was knocked down by ODNR in late 2023.  
  • 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 (which is mostly in Coshocton County.

  • 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.

Return to County List Summary Page
Page updated 12 January 2026