Season shown in 4 of Ohio's 88 counties. Explore Ohio
No result yet (10)
Recorded, too few records for a result (60)
Recorded, season not shown (14)
Season shown (4)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Fall Webworm 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
56 · Recorded, season not shown
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
81 · 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
32 · 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
45 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
34 · Recorded, season not shown
Erie County
Recorded, too few records for a result
Fairfield County
24 · Recorded, season not shown
Fayette County
Recorded, too few records for a result
Franklin County
176 · Season shown
Fulton County
No qualifying records yet
Gallia County
Recorded, too few records for a result
Geauga County
Recorded, too few records for a result
Greene County
62 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
128 · 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
No qualifying records yet
Highland County
24 · Recorded, season not shown
Hocking County
Recorded, too few records for a result
Holmes County
Recorded, too few records for a result
Huron County
No qualifying records yet
Jackson County
No qualifying records yet
Jefferson County
Recorded, too few records for a result
Knox County
21 · Recorded, season not shown
Lake County
Recorded, too few records for a result
Lawrence County
Recorded, too few records for a result
Licking County
38 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
Recorded, too few records for a result
Lucas County
51 · Recorded, season not shown
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
26 · Season shown
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
62 · Season 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
No qualifying records yet
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
Recorded, too few records for a result
Preble County
Recorded, too few records for a result
Putnam County
Recorded, too few records for a result
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
Recorded, too few records for a result
Seneca County
Recorded, too few records for a result
Shelby County
Recorded, too few records for a result
Stark County
34 · Recorded, season not shown
Summit County
54 · Season 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
Recorded, too few records for a result
Washington County
Recorded, too few records for a result
Wayne County
20 · Recorded, season not shown
Williams County
Recorded, too few records for a result
Wood County
Recorded, too few records for a result
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 Knox County
Not enough evidence
Most records come from a single year, so a season is not shown yet. Based on 21 records in 6 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 Knox County · records of all species each week, 6,463 in all
Records per week from 21 records in 6 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 Fall Webworm Moth in Knox County each week, and records of all species
Week
Records of Fall Webworm Moth
Years recorded
Records of all species
Jan 4–10
0
0
15
Jan 11–17
0
0
6
Jan 18–24
0
0
4
Jan 25–31
0
0
13
Feb 1–7
0
0
12
Feb 8–14
0
0
3
Feb 15–21
0
0
2
Feb 22–28
0
0
4
Mar 1–7
0
0
24
Mar 8–14
0
0
24
Mar 15–21
0
0
22
Mar 22–28
0
0
15
Mar 29 – Apr 4
0
0
52
Apr 5–11
0
0
32
Apr 12–18
0
0
92
Apr 19–25
0
0
139
Apr 26 – May 2
0
0
137
May 3–9
0
0
151
May 10–16
0
0
157
May 17–23
0
0
206
May 24–30
0
0
127
May 31 – Jun 6
0
0
94
Jun 7–13
0
0
111
Jun 14–20
0
0
157
Jun 21–27
0
0
155
Jun 28 – Jul 4
2
2
306
Jul 5–11
0
0
226
Jul 12–18
0
0
348
Jul 19–25
0
0
381
Jul 26 – Aug 1
0
0
370
Aug 2–8
1
1
255
Aug 9–15
0
0
262
Aug 16–22
1
1
304
Aug 23–29
2
2
393
Aug 30 – Sep 5
5
2
324
Sep 6–12
4
4
351
Sep 13–19
3
2
216
Sep 20–26
2
2
207
Sep 27 – Oct 3
0
0
145
Oct 4–10
1
1
210
Oct 11–17
0
0
130
Oct 18–24
0
0
60
Oct 25–31
0
0
44
Nov 1–7
0
0
31
Nov 8–14
0
0
31
Nov 15–21
0
0
15
Nov 22–28
0
0
26
Nov 29 – Dec 5
0
0
20
Dec 6–12
0
0
4
Dec 13–19
0
0
8
Dec 20–26
0
0
3
Dec 27 – Jan 2
0
0
39
Reported as an adult
Only 1 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
No caterpillar season shown here. The weeks are still too uncertain to show a season.
In Ohio
Late May to late September, middle week Aug 30 – Sep 5
Middle week · Aug 30 – Sep 5
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 1,790 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 716 dates. Latest record: October 2025.
Show as a table
Records of Fall Webworm Moth in Ohio each week, and records of all species
Week
Records of Fall Webworm Moth
Years recorded
Records of all species
Jan 4–10
0
0
6,211
Jan 11–17
0
0
5,146
Jan 18–24
1
1
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
2
2
10,384
Mar 15–21
0
0
12,620
Mar 22–28
0
0
13,949
Mar 29 – Apr 4
1
1
19,661
Apr 5–11
2
2
26,860
Apr 12–18
2
1
39,925
Apr 19–25
2
2
41,623
Apr 26 – May 2
13
5
56,391
May 3–9
27
4
52,952
May 10–16
9
5
53,785
May 17–23
15
7
57,698
May 24–30
15
5
54,651
May 31 – Jun 6
16
6
53,099
Jun 7–13
15
6
53,700
Jun 14–20
45
9
56,625
Jun 21–27
48
8
55,361
Jun 28 – Jul 4
55
8
58,477
Jul 5–11
57
9
61,336
Jul 12–18
35
9
64,722
Jul 19–25
39
8
69,753
Jul 26 – Aug 1
37
8
59,416
Aug 2–8
43
9
59,712
Aug 9–15
73
10
55,994
Aug 16–22
103
10
54,328
Aug 23–29
194
10
51,772
Aug 30 – Sep 5
222
10
57,167
Sep 6–12
253
10
59,075
Sep 13–19
184
10
54,543
Sep 20–26
132
9
45,860
Sep 27 – Oct 3
76
8
43,180
Oct 4–10
43
8
37,841
Oct 11–17
13
5
30,824
Oct 18–24
6
4
21,156
Oct 25–31
7
5
19,021
Nov 1–7
2
1
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
1
1
6,083
Dec 6–12
0
0
6,004
Dec 13–19
1
1
5,423
Dec 20–26
0
0
5,661
Dec 27 – Jan 2
1
0
8,459
Reported as an adult
No adult season shown here. Recorded in two separate seasons, so one season would put its middle week in the gap.
Reported as a caterpillar
Usually reported as a caterpillar late June to late September, middle week Aug 30 – Sep 5.
From 1,594 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.
Virginian Tiger MothSpilosoma virginicaOften confused in Ohio: 89 identifications in Ohio named one where the other was meant
Agreeable Tiger MothSpilosoma congruaOften confused in Ohio: 32 identifications in Ohio named one where the other was meant
Hickory Tussock MothLophocampa caryaeOften confused in Ohio: 29 identifications in Ohio named one where the other was meant
Salt Marsh MothEstigmene acreaOften confused in Ohio: 28 identifications in Ohio named one where the other was meant
Eastern Tent Caterpillar MothMalacosoma americanaOften confused in Ohio: 20 identifications in Ohio 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 late May to late September, middle week late August · 1,790 records
Reported as a caterpillarUsually late June to late September, middle week late August · 1,594 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: recorded
Feb: no record
Mar: recorded
Apr: recorded
May: recorded
Jun: recorded
Jul: recorded
Aug: recorded
Sep: recorded
Oct: recorded
Nov: recorded
Dec: recorded
Not reported in Ohio in February, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
60%49%
Forest
24%31%
Farmland
11%11%
Wetland
4%5%
Grassland and shrub
0.6%0.9%
Open water
0.6%3%
Barren
0.3%0.6%
From 1,085 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.
