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Dragonflies and damselfliesIn Ohio

Unicorn Clubtail

Arigomphus villosipes (Selys, 1854)

Unicorn Clubtail (Arigomphus villosipes)
(c) smwhite, some rights reserved (CC BY-NC), uploaded by smwhite · CC BY-NC 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Odonata
Family
Gomphidae
Genus
Arigomphus
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Range

Where it is recorded

Season shown in 11 of Ohio's 88 counties. Explore Ohio

  • No result yet (11)
  • Recorded, too few records for a result (62)
  • Recorded, season not shown (4)
  • Season shown (11)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Unicorn Clubtail by Ohio county: records and mapped range
CountyRecords
Adams CountyRecorded, too few records for a result
Allen CountyRecorded, too few records for a result
Ashland CountyRecorded, too few records for a result
Ashtabula CountyRecorded, too few records for a result
Athens CountyRecorded, too few records for a result
Auglaize CountyRecorded, too few records for a result
Belmont CountyRecorded, too few records for a result
Brown CountyRecorded, too few records for a result
Butler CountyRecorded, too few records for a result
Carroll CountyNo qualifying records yet
Champaign CountyRecorded, too few records for a result
Clark County48 · Season shown
Clermont County54 · Season shown
Clinton CountyRecorded, too few records for a result
Columbiana CountyRecorded, too few records for a result
Coshocton CountyRecorded, too few records for a result
Crawford CountyRecorded, too few records for a result
Cuyahoga County49 · Season shown
Darke CountyRecorded, too few records for a result
Defiance CountyRecorded, too few records for a result
Delaware CountyRecorded, too few records for a result
Erie CountyRecorded, too few records for a result
Fairfield CountyRecorded, too few records for a result
Fayette CountyRecorded, too few records for a result
Franklin County57 · Season shown
Fulton CountyRecorded, too few records for a result
Gallia CountyRecorded, too few records for a result
Geauga County30 · Season shown
Greene County64 · Season shown
Guernsey CountyRecorded, too few records for a result
Hamilton County27 · Season shown
Hancock CountyRecorded, too few records for a result
Hardin CountyRecorded, too few records for a result
Harrison CountyRecorded, too few records for a result
Henry CountyNo qualifying records yet
Highland CountyRecorded, too few records for a result
Hocking CountyRecorded, too few records for a result
Holmes CountyRecorded, too few records for a result
Huron CountyRecorded, too few records for a result
Jackson CountyRecorded, too few records for a result
Jefferson CountyRecorded, too few records for a result
Knox CountyRecorded, too few records for a result
Lake CountyRecorded, too few records for a result
Lawrence CountyNo qualifying records yet
Licking CountyRecorded, too few records for a result
Logan County30 · Recorded, season not shown
Lorain County66 · Recorded, season not shown
Lucas County58 · Season shown
Madison CountyRecorded, too few records for a result
Mahoning CountyRecorded, too few records for a result
Marion CountyNo qualifying records yet
Medina CountyRecorded, too few records for a result
Meigs CountyRecorded, too few records for a result
Mercer CountyNo qualifying records yet
Miami County45 · Recorded, season not shown
Monroe CountyRecorded, too few records for a result
Montgomery County59 · Season shown
Morgan CountyRecorded, too few records for a result
Morrow CountyRecorded, too few records for a result
Muskingum CountyRecorded, too few records for a result
Noble CountyRecorded, too few records for a result
Ottawa CountyRecorded, too few records for a result
Paulding CountyNo qualifying records yet
Perry CountyRecorded, too few records for a result
Pickaway CountyNo qualifying records yet
Pike CountyRecorded, too few records for a result
Portage CountyRecorded, too few records for a result
Preble CountyNo qualifying records yet
Putnam CountyNo qualifying records yet
Richland CountyRecorded, too few records for a result
Ross CountyNo qualifying records yet
Sandusky CountyRecorded, too few records for a result
Scioto CountyNo qualifying records yet
Seneca CountyRecorded, too few records for a result
Shelby County25 · Recorded, season not shown
Stark County40 · Season shown
Summit County90 · Season shown
Trumbull CountyRecorded, too few records for a result
Tuscarawas CountyRecorded, too few records for a result
Union CountyRecorded, too few records for a result
Van Wert CountyRecorded, too few records for a result
Vinton CountyRecorded, too few records for a result
Warren CountyRecorded, too few records for a result
Washington CountyRecorded, too few records for a result
Wayne CountyRecorded, too few records for a result
Williams CountyRecorded, too few records for a result
Wood CountyRecorded, too few records for a result
Wyandot CountyRecorded, too few records for a result

No mapped range from the range source used, the USGS Gap Analysis Project, which maps land vertebrates only.

Season

When it is recorded

In Ohio

Late May to early July, middle week Jun 14–20

Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all

Records per week from 1,668 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not how common it is. The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low; the season is not adjusted by them.

Recorded on 370 dates. Latest record: July 2025.

Show as a table
Records of Unicorn Clubtail in Ohio each week, and records of all species
WeekRecords of Unicorn ClubtailYears recordedRecords of all species
Jan 4–10006,211
Jan 11–17005,146
Jan 18–24004,645
Jan 25–31004,698
Feb 1–7006,023
Feb 8–14005,888
Feb 15–21005,436
Feb 22–28006,846
Mar 1–7008,321
Mar 8–140010,384
Mar 15–210012,620
Mar 22–280013,949
Mar 29 – Apr 40019,661
Apr 5–110026,860
Apr 12–180039,925
Apr 19–250041,623
Apr 26 – May 20056,391
May 3–90052,952
May 10–164453,785
May 17–237557,698
May 24–30122854,651
May 31 – Jun 62261053,099
Jun 7–133261053,700
Jun 14–203891056,625
Jun 21–273241055,361
Jun 28 – Jul 41541058,477
Jul 5–11701061,336
Jul 12–1835764,722
Jul 19–256469,753
Jul 26 – Aug 14259,416
Aug 2–81159,712
Aug 9–150055,994
Aug 16–220054,328
Aug 23–290051,772
Aug 30 – Sep 50057,167
Sep 6–120059,075
Sep 13–190054,543
Sep 20–260045,860
Sep 27 – Oct 30043,180
Oct 4–100037,841
Oct 11–170030,824
Oct 18–240021,156
Oct 25–310019,021
Nov 1–70014,172
Nov 8–140012,621
Nov 15–21007,965
Nov 22–28008,136
Nov 29 – Dec 5006,083
Dec 6–12006,004
Dec 13–19005,423
Dec 20–26005,661
Dec 27 – Jan 2008,459

Reported as an adult

Usually reported as an adult late May to early July, middle week Jun 14–20.

From 118 records that are marked as adults. Not every photo is marked with a life stage, so this shows when people reported it as an adult, not when adults are about.

Reported as a larva

No records here are marked as larvae yet, so there is no larva season to show. One needs at least 20 records from 5 different years.

What these results show

These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.

Relatives

In the same genus

Other Arigomphus recorded in Ohio

Jade ClubtailArigomphus submedianusLilypad ClubtailArigomphus furcifer

Identification

How to identify it

Often confused with

  • Lilypad Clubtail Arigomphus furcifer16 identifications worldwide named one where the other was meant

From iNaturalist’s similar-species counts, refreshed monthly: confusions in Ohio first, then worldwide. Only species with an Ohio result are listed.

Months not reported

  1. Jan: no record
  2. Feb: no record
  3. Mar: no record
  4. Apr: no record
  5. May: recorded
  6. Jun: recorded
  7. Jul: recorded
  8. Aug: recorded
  9. Sep: no record
  10. Oct: no record
  11. Nov: no record
  12. Dec: no record

Not reported in Ohio in September to April, 2016 to 2025.

Land cover where it is recorded

Land coverIts recordsAll Ohio records
Developed35%49%
Forest24%31%
Open water14%3%
Farmland11%11%
Wetland9%5%
Grassland and shrub7%0.9%
Barren1%0.6%

From 629 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)

Sources

Where these results come from

  • Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
  • Seasons use the published method and its evidence thresholds. Methods
  • See it on iNaturalist (opens in a new tab)OpenPhenology is independent and not affiliated with iNaturalist.

Records behind the Ohio result

1,668 records from 2 datasets.

To cite: the GBIF download doi:10.15468/dl.y2jkt8 (opens in a new tab).

A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.