Season shown in 1 of Ohio's 88 counties. Explore Ohio
No result yet (5)
Recorded, too few records for a result (64)
Recorded, season not shown (18)
Season shown (1)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Polyphemus 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
46 · Recorded, season not shown
Auglaize County
Recorded, too few records for a result
Belmont County
Recorded, too few records for a result
Brown County
Recorded, too few records for a result
Butler County
34 · Recorded, season not shown
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
22 · Recorded, season not shown
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
102 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
33 · Recorded, season not shown
Erie County
Recorded, too few records for a result
Fairfield County
Recorded, too few records for a result
Fayette County
Recorded, too few records for a result
Franklin County
103 · Recorded, season not shown
Fulton County
Recorded, too few records for a result
Gallia County
Recorded, too few records for a result
Geauga County
Recorded, too few records for a result
Greene County
Recorded, too few records for a result
Guernsey County
Recorded, too few records for a result
Hamilton County
68 · Recorded, season not shown
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
Recorded, too few records for a result
Highland County
21 · Season shown
Hocking County
39 · 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
23 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
22 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
23 · Recorded, season not shown
Lucas County
Recorded, too few records for a result
Madison County
Recorded, too few records for a result
Mahoning County
Recorded, too few records for a result
Marion County
Recorded, too few records for a result
Medina County
23 · Recorded, season not shown
Meigs County
Recorded, too few records for a result
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
39 · Recorded, season not shown
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
Recorded, too few records for a result
Paulding County
Recorded, too few records for a result
Perry County
Recorded, too few records for a result
Pickaway County
Recorded, too few records for a result
Pike County
Recorded, too few records for a result
Portage County
26 · 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
Recorded, too few records for a result
Scioto County
35 · 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
51 · Recorded, season not shown
Trumbull County
Recorded, too few records for a result
Tuscarawas County
Recorded, too few records for a result
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
21 · Recorded, season not shown
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
20 · Recorded, season not shown
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 Licking County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 22 records in 7 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Licking County · records of all species each week, 15,841 in all
Records per week from 22 records in 7 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 Polyphemus Moth in Licking County each week, and records of all species
Week
Records of Polyphemus Moth
Years recorded
Records of all species
Jan 4–10
0
0
18
Jan 11–17
0
0
23
Jan 18–24
0
0
15
Jan 25–31
0
0
11
Feb 1–7
0
0
21
Feb 8–14
0
0
25
Feb 15–21
0
0
12
Feb 22–28
0
0
46
Mar 1–7
0
0
50
Mar 8–14
0
0
73
Mar 15–21
0
0
102
Mar 22–28
0
0
68
Mar 29 – Apr 4
1
1
152
Apr 5–11
0
0
181
Apr 12–18
0
0
387
Apr 19–25
0
0
309
Apr 26 – May 2
0
0
368
May 3–9
0
0
313
May 10–16
1
1
359
May 17–23
0
0
420
May 24–30
1
1
391
May 31 – Jun 6
0
0
472
Jun 7–13
1
1
525
Jun 14–20
0
0
545
Jun 21–27
3
3
525
Jun 28 – Jul 4
2
2
601
Jul 5–11
0
0
882
Jul 12–18
0
0
852
Jul 19–25
0
0
572
Jul 26 – Aug 1
0
0
652
Aug 2–8
0
0
459
Aug 9–15
2
2
634
Aug 16–22
0
0
757
Aug 23–29
2
1
628
Aug 30 – Sep 5
1
1
531
Sep 6–12
0
0
822
Sep 13–19
0
0
489
Sep 20–26
0
0
492
Sep 27 – Oct 3
1
1
467
Oct 4–10
2
2
428
Oct 11–17
1
1
353
Oct 18–24
1
1
288
Oct 25–31
3
2
135
Nov 1–7
0
0
93
Nov 8–14
0
0
80
Nov 15–21
0
0
41
Nov 22–28
0
0
40
Nov 29 – Dec 5
0
0
39
Dec 6–12
0
0
16
Dec 13–19
0
0
20
Dec 20–26
0
0
16
Dec 27 – Jan 2
0
0
43
Reported as an adult
Only 13 records here are marked as adults, too few to show a adult season. One needs at least 20 records from 5 different years.
Reported as a caterpillar
Only 8 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 May to mid-October, middle week Aug 2–8
Middle week · Aug 2–8
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 1,440 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 811 dates. Latest record: December 2025.
Show as a table
Records of Polyphemus Moth in Ohio each week, and records of all species
Week
Records of Polyphemus Moth
Years recorded
Records of all species
Jan 4–10
2
2
6,211
Jan 11–17
0
0
5,146
Jan 18–24
0
0
4,645
Jan 25–31
1
1
4,698
Feb 1–7
0
0
6,023
Feb 8–14
2
2
5,888
Feb 15–21
1
1
5,436
Feb 22–28
0
0
6,846
Mar 1–7
4
3
8,321
Mar 8–14
3
3
10,384
Mar 15–21
5
3
12,620
Mar 22–28
5
4
13,949
Mar 29 – Apr 4
4
4
19,661
Apr 5–11
4
3
26,860
Apr 12–18
2
2
39,925
Apr 19–25
8
4
41,623
Apr 26 – May 2
27
6
56,391
May 3–9
35
7
52,952
May 10–16
24
8
53,785
May 17–23
38
9
57,698
May 24–30
49
9
54,651
May 31 – Jun 6
29
9
53,099
Jun 7–13
66
9
53,700
Jun 14–20
48
9
56,625
Jun 21–27
48
9
55,361
Jun 28 – Jul 4
42
10
58,477
Jul 5–11
54
8
61,336
Jul 12–18
91
9
64,722
Jul 19–25
65
10
69,753
Jul 26 – Aug 1
63
9
59,416
Aug 2–8
93
8
59,712
Aug 9–15
94
10
55,994
Aug 16–22
120
10
54,328
Aug 23–29
82
8
51,772
Aug 30 – Sep 5
48
8
57,167
Sep 6–12
35
7
59,075
Sep 13–19
38
8
54,543
Sep 20–26
40
8
45,860
Sep 27 – Oct 3
54
9
43,180
Oct 4–10
36
8
37,841
Oct 11–17
25
6
30,824
Oct 18–24
26
8
21,156
Oct 25–31
15
6
19,021
Nov 1–7
3
3
14,172
Nov 8–14
0
0
12,621
Nov 15–21
3
3
7,965
Nov 22–28
1
1
8,136
Nov 29 – Dec 5
2
2
6,083
Dec 6–12
1
1
6,004
Dec 13–19
1
1
5,423
Dec 20–26
2
1
5,661
Dec 27 – Jan 2
1
1
8,459
Reported as an adult
Usually reported as an adult early May to late August, middle week Jul 5–11.
From 869 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 mid-July to mid-October, middle week Aug 30 – Sep 5.
From 484 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.
North American Luna MothActias lunaOften confused in Ohio: 52 identifications in Ohio named one where the other was meant
Cecropia MothHyalophora cecropia199 identifications worldwide named one where the other was meant
Promethea SilkmothCallosamia promethea76 identifications worldwide named one where the other was meant
Tulip-tree SilkmothCallosamia angulifera55 identifications worldwide named one where the other was meant
Io MothAutomeris io54 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 May to mid-October, middle week early August · 1,440 records
Reported as an adultUsually early May to late August, middle week early July · 869 records
Reported as a caterpillarUsually mid-July to mid-October, middle week late August · 484 records
Not every photo is marked with a sex or a sign, so these show when people reported each, not when it happens.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
75%49%
Forest
14%31%
Farmland
9%11%
Wetland
1%5%
Barren
0.6%0.6%
Open water
0.5%3%
Grassland and shrub
0.3%0.9%
From 870 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.
