Ariel-Foundation Park in Mount Vernon

Knox County

Known species: 75
Total Observations: 1,245
Population: 60,810
Area in Square Miles: 525
People per Square Mile: 115
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.

Knox County Ohio

Observed Species

Common NameScientific NameKnox TotalOhio TotalKnox 2023Last Sighted
Eastern PondhawkErythemis simplicicollis11813,870232023
Blue-fronted DancerArgia apicalis1175,692662023
Blue DasherPachydiplax longipennis9113,169392023
Widow SkimmerLibellula luctuosa9010,352242023
Eastern ForktailIschnura verticalis6013,326182023
Fragile ForktailIschnura posita5910,727192023
Eastern AmberwingPerithemis tenera578,819182023
Ebony JewelwingCalopteryx maculata557,169142023
Common WhitetailPlathemis lydia479,898182023
Stream BluetEnallagma exsulans454,097202023
Double-striped BluetEnallagma basidens414,313182023
American RubyspotHetaerina americana313,761102023
Blue-tipped DancerArgia tibialis303,785102023
Blue-ringed DancerArgia sedula282,36492023
Autumn MeadowhawkSympetrum vicinum286,97132023
Powdered DancerArgia moesta264,24752023
Fawn DarnerBoyeria vinosa2644002021
Orange BluetEnallagma signatum213,18462023
Violet DancerArgia fumipennis violacea196,24712023
Prince BaskettailEpitheca princeps182,39062023
Slender SpreadwingLestes rectangularis183,49232023
Familiar BluetEnallagma civile155,11132023
Twelve-spotted SkimmerLibellula pulchella153,37702021
Halloween PennantCelithemis eponina133,62832023
Dusky DancerArgia translata131,37622023
Common Green DarnerAnax junius124,14632023
Black SaddlebagsTramea lacerata102,83912023
Midland ClubtailGomphurus fraternus1080202021
Skimming BluetEnallagma geminatum93,10922023
Westfall's Slender BluetEnallagma traviatum westfalli81,99112023
Ashy ClubtailPhanogomphus lividus887412023
Azure BluetEnallagma aspersum62,11522023
Ruby MeadowhawkSympetrum rubicundulum694201994
Common BaskettailEpitheca cynosura674802019
Lancet ClubtailPhanogomphus exilis51,51802020
Lilypad ForktailIschnura kellicotti573302018
Swift River CruiserMacromia illinoiensis568802008
Spatterdock DarnerRhionaeschna mutata533502021
Rapids ClubtailPhanogomphus quadricolor428712023
Wandering GliderPantala flavescens41,24102022
Shadow DarnerAeshna umbrosa41,03102016
Springtime DarnerBasiaeschna janata429801988
Unicorn ClubtailArigomphus villosipes31,68701994
Amber-winged SpreadwingLestes eurinus361002021
Black-shouldered SpinylegDromogomphus spinosus254222023
Calico PennantCelithemis elisa22,75202013
Dot-tailed WhitefaceLeucorrhinia intacta21,35701991
Blue-faced MeadowhawkSympetrum ambiguum21,20401990
Spangled SkimmerLibellula cyanea21,03701898
Swamp SpreadwingLestes vigilax254402008
Comet DarnerAnax longipes251502018
Rainbow BluetEnallagma antennatum245801936
Sweetflag SpreadwingLestes forcipatus244302021
Stygian ShadowdragonNeurocordulia yamaskanensis26801987
Slaty SkimmerLibellula incesta14,03202003
Eastern Red DamselAmphiagrion saucium11,23001936
Painted SkimmerLibellula semifasciata11,05601956
Carolina SaddlebagsTramea carolina11,04802019
Great SpreadwingArchilestes grandis182402021
Flag-tailed SpinylegDromogomphus spoliatus174302020
Spotted SpreadwingLestes congener173102019
Swamp DarnerEpiaeschna heros162001965
Elegant SpreadwingLestes inaequalis147901961
Spot-winged GliderPantala hymenaea147802004
Aurora DamselChromagrion conditum147101994
Great Blue SkimmerLibellula vibrans146702015
DragonhunterHagenius brevistylus143901900
Cobra ClubtailGomphurus vastus137701956
Sphagnum SpriteNehalennia gracilis137001936
Sedge SpriteNehalennia irene135902008
Four-spotted SkimmerLibellula quadrimaculata128501937
Eastern Least ClubtailStylogomphus albistylus126201989
Rusty SnaketailOphiogomphus rupinsulensis124501975
Clamp-tipped EmeraldSomatochlora tenebrosa120802007
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 hastata899306Jun-Aug
Royal River CruiserMacromia taeniolata53695late Jul-Aug
Gray PetaltailTachopteryx thoreyi390324Jun
Emerald SpreadwingLestes dryas479304Jun
Band-winged MeadowhawkSympetrum semicinctum860104Jul-Aug
Black-tipped DarnerAeshna tuberculifera14144late Aug-early Sep
Red SaddlebagsTramea onusta14563Jun-Jul
Arrow ClubtailStylurus spiniceps30553late Aug-early Sep
Cyrano DarnerNasiaeschna pentacantha27753mid Jun
Green-striped DarnerAeshna verticalis26253Sep
Arrowhead SpiketailCordulegaster obliqua17243late May-early Jun
Smoky RubyspotHetaerina titia3461812early Sep
Tule BluetEnallagma carunculatum498182Jun-Jul
Vesper BluetEnallagma vesperum74092Jun
Mocha EmeraldSomatochlora linearis19262late Jun-late Aug
Turquoise BluetEnallagma divagans76832May-Jun
Southern SpreadwingLestes australis25532May
Dusky ClubtailPhanogomphus spicatus19132early Jun
Tiger SpiketailCordulegaster erronea10632Jul
Twin-spotted SpiketailCordulegaster maculata9032late May-mid Jun
Pronghorn ClubtailPhanogomphus graslinellus45122late May-early Jun
Laura's ClubtailStylurus laurae50191late Jul-early Sep
Lance-tipped DarnerAeshna constricta35861Sep
Delta-spotted SpiketailCordulegaster diastatops13121early Jun
Banded PennantCelithemis fasciata68411Jul
Blue CorporalLadona deplanata44611May
Swift SetwingDythemis velox34011Jul-Aug
Russet-tipped ClubtailStylurus plagiatus30711Sep
Variegated MeadowhawkSympetrum corruptum11711Apr-Sep
Macromia HybridMacromia pacifica x taeniolata9011late Jul-mid Aug
Gilded River CruiserMacromia pacifica7311late Jul
Wabash River CruiserMacromia wabashensis2511Aug
Cherry-faced MeadowhawkSympetrum internum1411Sep
Furtive ForktailIschnura prognata511
White-faced MeadowhawkSympetrum obtrusum27200Sep
Brown SpiketailCordulegaster bilineata21600late May-early Jun
Lyre-tipped SpreadwingLestes unguiculatus18000Jun-Jul
Handsome ClubtailGomphurus crassus17000late May-early Jun
Lilypad ClubtailArigomphus furcifer11300early Jun
Elusive ClubtailStylurus notatus10100Sep
Splendid ClubtailGomphurus lineatifrons9500Jun
Hagen's BluetEnallagma hageni8400Jun
Marsh BluetEnallagma ebrium6600mid Jun
Green-faced ClubtailHylogomphus viridifrons5900mid 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. 29 species have been identified.

  • Kokosing Lake Wildlife Area, .5 miles northwest of Fredericktown and five miles northeast of Chesterville (NW corner of county). 13 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 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 20 February 2024