Season shown in 12 of Ohio's 88 counties. Explore Ohio
No result yet (10)
Recorded, too few records for a result (56)
Recorded, season not shown (10)
Season shown (12)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Viceroy 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
43 · Recorded, season not shown
Athens County
Recorded, too few records for a result
Auglaize County
No qualifying records yet
Belmont County
No qualifying records yet
Brown County
Recorded, too few records for a result
Butler County
31 · Season 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
24 · Recorded, season not shown
Clinton County
No qualifying records yet
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
111 · Season shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
33 · Season shown
Erie County
26 · Season shown
Fairfield County
Recorded, too few records for a result
Fayette County
No qualifying records yet
Franklin County
125 · Season shown
Fulton County
Recorded, too few records for a result
Gallia County
No qualifying records yet
Geauga County
Recorded, too few records for a result
Greene County
90 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
81 · 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
No qualifying records yet
Hocking County
Recorded, too few records for a result
Holmes County
Recorded, too few records for a result
Huron County
Recorded, too few records for a result
Jackson County
Recorded, too few records for a result
Jefferson County
Recorded, too few records for a result
Knox County
20 · Season shown
Lake County
41 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
49 · Season shown
Logan County
Recorded, too few records for a result
Lorain County
54 · Season shown
Lucas County
151 · 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
84 · Season 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
65 · 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
61 · Season shown
Paulding County
Recorded, too few records for a result
Perry County
No qualifying records yet
Pickaway County
Recorded, too few records for a result
Pike County
No qualifying records yet
Portage County
60 · 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
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
54 · Recorded, season not shown
Summit County
187 · 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
Recorded, too few records for a result
Vinton County
Recorded, too few records for a result
Warren County
20 · Recorded, season not shown
Washington County
Recorded, too few records for a result
Wayne County
49 · 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 Hamilton County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 81 records in 8 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 Hamilton County · records of all species each week, 87,019 in all
Records per week from 81 records in 8 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 Viceroy in Hamilton County each week, and records of all species
Week
Records of Viceroy
Years recorded
Records of all species
Jan 4–10
0
0
392
Jan 11–17
0
0
344
Jan 18–24
0
0
312
Jan 25–31
0
0
206
Feb 1–7
0
0
357
Feb 8–14
0
0
383
Feb 15–21
0
0
366
Feb 22–28
0
0
391
Mar 1–7
0
0
551
Mar 8–14
0
0
523
Mar 15–21
0
0
750
Mar 22–28
0
0
1,012
Mar 29 – Apr 4
0
0
1,535
Apr 5–11
0
0
1,960
Apr 12–18
0
0
2,492
Apr 19–25
0
0
2,403
Apr 26 – May 2
0
0
3,783
May 3–9
1
1
3,307
May 10–16
2
1
2,059
May 17–23
0
0
2,153
May 24–30
2
2
2,390
May 31 – Jun 6
2
2
2,648
Jun 7–13
0
0
2,715
Jun 14–20
0
0
2,695
Jun 21–27
1
1
2,714
Jun 28 – Jul 4
1
1
3,220
Jul 5–11
4
3
2,980
Jul 12–18
4
2
3,031
Jul 19–25
3
2
2,961
Jul 26 – Aug 1
2
2
2,795
Aug 2–8
5
5
2,884
Aug 9–15
12
6
2,696
Aug 16–22
10
4
2,535
Aug 23–29
2
2
2,536
Aug 30 – Sep 5
7
6
2,606
Sep 6–12
3
3
2,980
Sep 13–19
5
4
2,959
Sep 20–26
3
3
2,313
Sep 27 – Oct 3
1
1
2,122
Oct 4–10
6
4
1,828
Oct 11–17
4
3
1,793
Oct 18–24
0
0
1,338
Oct 25–31
1
1
1,023
Nov 1–7
0
0
676
Nov 8–14
0
0
593
Nov 15–21
0
0
384
Nov 22–28
0
0
496
Nov 29 – Dec 5
0
0
356
Dec 6–12
0
0
478
Dec 13–19
0
0
285
Dec 20–26
0
0
322
Dec 27 – Jan 2
0
0
388
Reported as an adult
No adult season shown here. The weeks are still too uncertain to show a season.
Reported as a caterpillar
Only 9 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
Late May to late September, middle week Aug 16–22
Middle week · Aug 16–22
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 2,421 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 891 dates. Latest record: October 2025.
Show as a table
Records of Viceroy in Ohio each week, and records of all species
Week
Records of Viceroy
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
1
1
19,661
Apr 5–11
1
1
26,860
Apr 12–18
0
0
39,925
Apr 19–25
0
0
41,623
Apr 26 – May 2
1
1
56,391
May 3–9
3
2
52,952
May 10–16
3
2
53,785
May 17–23
23
6
57,698
May 24–30
45
9
54,651
May 31 – Jun 6
64
10
53,099
Jun 7–13
58
10
53,700
Jun 14–20
35
7
56,625
Jun 21–27
29
7
55,361
Jun 28 – Jul 4
33
10
58,477
Jul 5–11
112
9
61,336
Jul 12–18
135
9
64,722
Jul 19–25
209
10
69,753
Jul 26 – Aug 1
141
10
59,416
Aug 2–8
150
10
59,712
Aug 9–15
96
10
55,994
Aug 16–22
140
10
54,328
Aug 23–29
172
10
51,772
Aug 30 – Sep 5
223
10
57,167
Sep 6–12
248
10
59,075
Sep 13–19
191
10
54,543
Sep 20–26
128
10
45,860
Sep 27 – Oct 3
75
10
43,180
Oct 4–10
51
10
37,841
Oct 11–17
41
8
30,824
Oct 18–24
8
6
21,156
Oct 25–31
5
5
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 late September, middle week Aug 16–22.
From 2,349 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 early May to mid-September, middle week Aug 16–22.
From 67 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.
MonarchDanaus (Danaus) plexippusOften confused in Ohio: 105 identifications in Ohio named one where the other was meant
Red-spotted AdmiralLimenitis arthemis87 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 late May to late September, middle week mid-August · 2,421 records
Reported as a caterpillarUsually early May to mid-September, middle week mid-August · 67 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: recorded
Apr: recorded
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 February, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
37%49%
Farmland
31%11%
Forest
14%31%
Wetland
10%5%
Grassland and shrub
4%0.9%
Open water
3%3%
Barren
1%0.6%
From 1,088 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)
Finer identifications
Some Ohio records of this species were identified to a subspecies:
Every one of these records counts toward the Viceroy's season above.
Why some records go further than species
Many species vary from place to place. Groups of a species that look or sound a little different, and live in different areas, can be named as subspecies. Observers and experts only identify a record that far when it shows enough detail to tell them apart. Records without that detail count at the species level.
Names: Catalogue of Life.
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.
