Season shown in 0 of Ohio's 88 counties. Explore Ohio
No result yet (18)
Recorded, too few records for a result (64)
Recorded, season not shown (6)
Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Io Moth by Ohio county: records and mapped range
County
Records
Adams County
Recorded, too few records for a result
Allen County
Recorded, too few records for a result
Ashland County
Recorded, too few records for a result
Ashtabula County
Recorded, too few records for a result
Athens County
Recorded, too few records for a result
Auglaize County
No qualifying records yet
Belmont County
Recorded, too few records for a result
Brown County
Recorded, too few records for a result
Butler County
Recorded, too few records for a result
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
Recorded, too few records for a result
Clermont County
Recorded, too few records for a result
Clinton County
Recorded, too few records for a result
Columbiana County
Recorded, too few records for a result
Coshocton County
Recorded, too few records for a result
Crawford County
Recorded, too few records for a result
Cuyahoga County
Recorded, too few records for a result
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
Recorded, too few records for a result
Erie County
Recorded, too few records for a result
Fairfield County
Recorded, too few records for a result
Fayette County
No qualifying records yet
Franklin County
Recorded, too few records for a result
Fulton County
No qualifying records yet
Gallia County
No qualifying records yet
Geauga County
Recorded, too few records for a result
Greene County
23 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
Recorded, too few records for a result
Hancock County
Recorded, too few records for a result
Hardin County
Recorded, too few records for a result
Harrison County
Recorded, too few records for a result
Henry County
No qualifying records yet
Highland County
49 · Recorded, season not shown
Hocking County
46 · Recorded, season not shown
Holmes County
Recorded, too few records for a result
Huron County
No qualifying records yet
Jackson County
Recorded, too few records for a result
Jefferson County
Recorded, too few records for a result
Knox County
Recorded, too few records for a result
Lake County
Recorded, too few records for a result
Lawrence County
Recorded, too few records for a result
Licking County
Recorded, too few records for a result
Logan County
Recorded, too few records for a result
Lorain County
Recorded, too few records for a result
Lucas County
Recorded, too few records for a result
Madison County
No qualifying records yet
Mahoning County
Recorded, too few records for a result
Marion County
No qualifying records yet
Medina County
Recorded, too few records for a result
Meigs County
No qualifying records yet
Mercer County
No qualifying records yet
Miami County
Recorded, too few records for a result
Monroe County
Recorded, too few records for a result
Montgomery County
Recorded, too few records for a result
Morgan County
Recorded, too few records for a result
Morrow County
Recorded, too few records for a result
Muskingum County
Recorded, too few records for a result
Noble County
Recorded, too few records for a result
Ottawa County
No qualifying records yet
Paulding County
Recorded, too few records for a result
Perry County
Recorded, too few records for a result
Pickaway County
No qualifying records yet
Pike County
Recorded, too few records for a result
Portage County
41 · Recorded, season not shown
Preble County
Recorded, too few records for a result
Putnam County
No qualifying records yet
Richland County
Recorded, too few records for a result
Ross County
Recorded, too few records for a result
Sandusky County
No qualifying records yet
Scioto County
37 · Recorded, season not shown
Seneca County
Recorded, too few records for a result
Shelby County
No qualifying records yet
Stark County
Recorded, too few records for a result
Summit County
24 · Recorded, season not shown
Trumbull County
Recorded, too few records for a result
Tuscarawas County
No qualifying records yet
Union County
Recorded, too few records for a result
Van Wert County
No qualifying records yet
Vinton County
Recorded, too few records for a result
Warren County
Recorded, too few records for a result
Washington County
Recorded, too few records for a result
Wayne County
Recorded, too few records for a result
Williams County
Recorded, too few records for a result
Wood County
No qualifying records yet
Wyandot County
Recorded, 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 Hocking County
Early June to mid-July, middle week late June
Recorded in two separate seasons, each shown with its own early, middle and late weeks. A later season is not shown: only 11 records, too few.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Hocking County · records of all species each week, 17,716 in all
Records per week from 46 records in 9 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of Io Moth in Hocking County each week, and records of all species
Week
Records of Io Moth
Years recorded
Records of all species
Jan 4–10
0
0
44
Jan 11–17
0
0
28
Jan 18–24
0
0
28
Jan 25–31
0
0
39
Feb 1–7
0
0
46
Feb 8–14
0
0
31
Feb 15–21
0
0
16
Feb 22–28
0
0
50
Mar 1–7
0
0
68
Mar 8–14
0
0
95
Mar 15–21
0
0
90
Mar 22–28
0
0
164
Mar 29 – Apr 4
0
0
257
Apr 5–11
0
0
327
Apr 12–18
0
0
414
Apr 19–25
0
0
682
Apr 26 – May 2
0
0
761
May 3–9
0
0
367
May 10–16
0
0
481
May 17–23
0
0
491
May 24–30
0
0
509
May 31 – Jun 6
0
0
403
Jun 7–13
4
3
587
Jun 14–20
7
3
710
Jun 21–27
10
5
851
Jun 28 – Jul 4
8
5
559
Jul 5–11
2
1
937
Jul 12–18
2
2
581
Jul 19–25
1
1
707
Jul 26 – Aug 1
1
1
548
Aug 2–8
0
0
613
Aug 9–15
1
1
594
Aug 16–22
0
0
641
Aug 23–29
1
1
411
Aug 30 – Sep 5
1
1
459
Sep 6–12
2
2
341
Sep 13–19
4
2
547
Sep 20–26
1
1
357
Sep 27 – Oct 3
1
1
288
Oct 4–10
0
0
214
Oct 11–17
0
0
436
Oct 18–24
0
0
576
Oct 25–31
0
0
221
Nov 1–7
0
0
459
Nov 8–14
0
0
141
Nov 15–21
0
0
84
Nov 22–28
0
0
86
Nov 29 – Dec 5
0
0
102
Dec 6–12
0
0
39
Dec 13–19
0
0
44
Dec 20–26
0
0
86
Dec 27 – Jan 2
0
0
106
Reported as an adult
Usually reported as an adult early June to mid-July, middle week Jun 21–27.
From 34 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 caterpillar
Only 11 records here are marked as caterpillars, too few to show a caterpillar season. One needs at least 20 records from 5 different years.
In Ohio
Early June to mid-September, middle week Jul 5–11
Middle week · Jul 5–11
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all
Records per week from 752 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 384 dates. Latest record: October 2025.
Show as a table
Records of Io Moth in Ohio each week, and records of all species
Week
Records of Io Moth
Years recorded
Records of all species
Jan 4–10
0
0
6,211
Jan 11–17
0
0
5,146
Jan 18–24
0
0
4,645
Jan 25–31
0
0
4,698
Feb 1–7
0
0
6,023
Feb 8–14
0
0
5,888
Feb 15–21
0
0
5,436
Feb 22–28
0
0
6,846
Mar 1–7
0
0
8,321
Mar 8–14
0
0
10,384
Mar 15–21
0
0
12,620
Mar 22–28
0
0
13,949
Mar 29 – Apr 4
0
0
19,661
Apr 5–11
0
0
26,860
Apr 12–18
0
0
39,925
Apr 19–25
0
0
41,623
Apr 26 – May 2
0
0
56,391
May 3–9
0
0
52,952
May 10–16
0
0
53,785
May 17–23
6
3
57,698
May 24–30
14
3
54,651
May 31 – Jun 6
10
4
53,099
Jun 7–13
37
8
53,700
Jun 14–20
79
9
56,625
Jun 21–27
82
10
55,361
Jun 28 – Jul 4
117
10
58,477
Jul 5–11
67
10
61,336
Jul 12–18
87
8
64,722
Jul 19–25
36
8
69,753
Jul 26 – Aug 1
7
4
59,416
Aug 2–8
10
5
59,712
Aug 9–15
23
9
55,994
Aug 16–22
16
7
54,328
Aug 23–29
35
8
51,772
Aug 30 – Sep 5
34
8
57,167
Sep 6–12
37
8
59,075
Sep 13–19
32
9
54,543
Sep 20–26
11
6
45,860
Sep 27 – Oct 3
8
5
43,180
Oct 4–10
4
3
37,841
Oct 11–17
0
0
30,824
Oct 18–24
0
0
21,156
Oct 25–31
0
0
19,021
Nov 1–7
0
0
14,172
Nov 8–14
0
0
12,621
Nov 15–21
0
0
7,965
Nov 22–28
0
0
8,136
Nov 29 – Dec 5
0
0
6,083
Dec 6–12
0
0
6,004
Dec 13–19
0
0
5,423
Dec 20–26
0
0
5,661
Dec 27 – Jan 2
0
0
8,459
Reported as an adult
Usually reported as an adult late May to mid-July, middle week Jun 28 – Jul 4.
From 533 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 caterpillar
Usually reported as a caterpillar late July to late September, middle week Aug 30 – Sep 5.
From 218 records that are marked as caterpillars. Not every photo is marked with a life stage, so this shows when people reported it as a caterpillar, not when caterpillars are about.
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.
Identification
How to identify it
Telling it apart
From what Ohio’s records show. Only what the records support is shown.
Polyphemus MothAntheraea (Telea) polyphemus54 identifications worldwide named one where the other was meant
Imperial MothEacles imperialis45 identifications worldwide named one where the other was meant
Pink-striped Oakworm MothAnisota virginiensis12 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.
When each is reported
All recordsUsually early June to mid-September, middle week early July · 752 records
Reported as maleUsually early June to mid-July, middle week late June · 140 records
Reported as femaleUsually early June to mid-July, middle week late June · 47 records
Reported as an adultUsually late May to mid-July, middle week late June · 533 records
Reported as a caterpillarUsually late July to late September, middle week late August · 218 records
Not every photo is marked with a sex or a sign, so these show when people reported each, not when it happens.
Months not reported
Jan: no record
Feb: no record
Mar: no record
Apr: no record
May: recorded
Jun: recorded
Jul: recorded
Aug: recorded
Sep: recorded
Oct: recorded
Nov: no record
Dec: no record
Not reported in Ohio in November to April, 2016 to 2025.
Time of day it is recorded
midnight6 amnoon6 pm
From 740 Ohio records with a time. Most records are made when people are outside, so night and early-morning species are under-recorded.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Forest
42%31%
Developed
41%49%
Farmland
14%11%
Wetland
2%5%
Open water
0.5%3%
Barren
0.3%0.6%
Grassland and shrub
0.3%0.9%
From 376 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
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.
