Season shown in 10 of Ohio's 88 counties. Explore Ohio
No result yet (4)
Recorded, too few records for a result (48)
Recorded, season not shown (26)
Season shown (10)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Common Eastern Bumble Bee 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
34 · Recorded, season not shown
Ashtabula County
274 · Season shown
Athens County
87 · 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
248 · Recorded, season not shown
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
41 · Recorded, season not shown
Clermont County
103 · Recorded, season not shown
Clinton County
Recorded, too few records for a result
Columbiana County
23 · Recorded, season not shown
Coshocton County
Recorded, too few records for a result
Crawford County
41 · Recorded, season not shown
Cuyahoga County
735 · Season shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
86 · Recorded, season not shown
Erie County
75 · Recorded, season not shown
Fairfield County
55 · Recorded, season not shown
Fayette County
Recorded, too few records for a result
Franklin County
712 · Season shown
Fulton County
Recorded, too few records for a result
Gallia County
Recorded, too few records for a result
Geauga County
89 · Recorded, season not shown
Greene County
131 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
1,175 · Season shown
Hancock County
33 · Recorded, season not shown
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
Recorded, too few records for a result
Hocking County
30 · Recorded, season not shown
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
62 · Recorded, season not shown
Lake County
110 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
104 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
132 · Recorded, season not shown
Lucas County
1,006 · Recorded, season not shown
Madison County
70 · Recorded, season not shown
Mahoning County
62 · Season shown
Marion County
Recorded, too few records for a result
Medina County
307 · 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
No qualifying records yet
Montgomery County
215 · 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
37 · Recorded, season not shown
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
422 · Recorded, season not shown
Preble County
Recorded, too few records for a result
Putnam County
Recorded, too few records for a result
Richland County
49 · Recorded, season not shown
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
218 · Season shown
Summit County
714 · Season shown
Trumbull County
Recorded, too few records for a result
Tuscarawas County
41 · Recorded, season not shown
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
97 · Recorded, season not shown
Washington County
Recorded, too few records for a result
Wayne County
113 · Season shown
Williams County
Recorded, too few records for a result
Wood County
188 · Season 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 Butler County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 248 records in 9 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 Butler County · records of all species each week, 32,485 in all
Records per week from 248 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 Common Eastern Bumble Bee in Butler County each week, and records of all species
Week
Records of Common Eastern Bumble Bee
Years recorded
Records of all species
Jan 4–10
0
0
59
Jan 11–17
0
0
104
Jan 18–24
0
0
111
Jan 25–31
0
0
54
Feb 1–7
0
0
62
Feb 8–14
0
0
59
Feb 15–21
0
0
70
Feb 22–28
0
0
117
Mar 1–7
0
0
221
Mar 8–14
0
0
224
Mar 15–21
0
0
250
Mar 22–28
0
0
250
Mar 29 – Apr 4
0
0
464
Apr 5–11
0
0
681
Apr 12–18
3
2
911
Apr 19–25
3
2
1,134
Apr 26 – May 2
1
1
1,163
May 3–9
3
2
1,117
May 10–16
2
2
724
May 17–23
0
0
681
May 24–30
1
1
518
May 31 – Jun 6
0
0
531
Jun 7–13
1
1
605
Jun 14–20
4
2
566
Jun 21–27
6
5
545
Jun 28 – Jul 4
2
2
622
Jul 5–11
3
3
580
Jul 12–18
1
1
658
Jul 19–25
1
1
618
Jul 26 – Aug 1
5
3
664
Aug 2–8
10
2
710
Aug 9–15
3
3
555
Aug 16–22
9
4
856
Aug 23–29
20
7
1,185
Aug 30 – Sep 5
31
6
2,105
Sep 6–12
15
7
2,341
Sep 13–19
21
6
1,284
Sep 20–26
42
6
1,693
Sep 27 – Oct 3
17
4
1,744
Oct 4–10
17
6
1,330
Oct 11–17
12
4
1,154
Oct 18–24
5
4
745
Oct 25–31
6
3
955
Nov 1–7
2
1
261
Nov 8–14
1
1
265
Nov 15–21
1
1
197
Nov 22–28
0
0
187
Nov 29 – Dec 5
0
0
103
Dec 6–12
0
0
173
Dec 13–19
0
0
84
Dec 20–26
0
0
89
Dec 27 – Jan 2
0
0
106
Reported as an adult
No adult season shown here. The weeks are still too uncertain to show a season.
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.
In Ohio
Early May to mid-October, 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 10,439 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 1,709 dates. Latest record: November 2025.
Show as a table
Records of Common Eastern Bumble Bee in Ohio each week, and records of all species
Week
Records of Common Eastern Bumble Bee
Years recorded
Records of all species
Jan 4–10
0
0
6,211
Jan 11–17
1
1
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
5
3
10,384
Mar 15–21
3
2
12,620
Mar 22–28
4
3
13,949
Mar 29 – Apr 4
18
7
19,661
Apr 5–11
58
6
26,860
Apr 12–18
92
10
39,925
Apr 19–25
92
10
41,623
Apr 26 – May 2
118
10
56,391
May 3–9
116
10
52,952
May 10–16
93
10
53,785
May 17–23
81
9
57,698
May 24–30
108
10
54,651
May 31 – Jun 6
85
10
53,099
Jun 7–13
107
10
53,700
Jun 14–20
114
9
56,625
Jun 21–27
132
10
55,361
Jun 28 – Jul 4
200
10
58,477
Jul 5–11
211
10
61,336
Jul 12–18
326
10
64,722
Jul 19–25
373
10
69,753
Jul 26 – Aug 1
465
10
59,416
Aug 2–8
611
10
59,712
Aug 9–15
555
10
55,994
Aug 16–22
613
10
54,328
Aug 23–29
599
10
51,772
Aug 30 – Sep 5
870
10
57,167
Sep 6–12
831
10
59,075
Sep 13–19
691
9
54,543
Sep 20–26
638
10
45,860
Sep 27 – Oct 3
707
10
43,180
Oct 4–10
512
10
37,841
Oct 11–17
416
10
30,824
Oct 18–24
235
10
21,156
Oct 25–31
200
10
19,021
Nov 1–7
88
9
14,172
Nov 8–14
53
9
12,621
Nov 15–21
15
5
7,965
Nov 22–28
3
3
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 early May to mid-October, middle week Aug 30 – Sep 5.
From 908 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.
Brown-belted Bumble BeeBombus griseocollisOften confused in Ohio: 372 identifications in Ohio named one where the other was meant
Two-spotted Bumble BeeBombus bimaculatusOften confused in Ohio: 263 identifications in Ohio named one where the other was meant
Eastern Carpenter BeeXylocopa virginicaOften confused in Ohio: 186 identifications in Ohio named one where the other was meant
Half-black Bumble BeeBombus vagansOften confused in Ohio: 38 identifications in Ohio named one where the other was meant
Western Honey BeeApis melliferaOften confused in Ohio: 31 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 early May to mid-October, middle week late August · 10,439 records
Reported as femaleUsually mid-April to early October, middle week early August · 277 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: no record
Not reported in Ohio in February and December, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
74%49%
Forest
11%31%
Farmland
11%11%
Wetland
3%5%
Grassland and shrub
0.5%0.9%
Open water
0.5%3%
Barren
0.3%0.6%
From 5,885 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
iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 10,312 recordsiNaturalist contributors, iNaturalist (2026). iNaturalist Research-grade Observations. iNaturalist.org. Occurrence dataset https://doi.org/10.15468/ab3s5x accessed via GBIF.org on 2026-11-13.
Xerces Society - Bumble Bee Watch (opens in a new tab) · United States Geological Survey · 104 recordsHatfield R, Kerr J, Larrivée M (2024). Xerces Society - Bumble Bee Watch. Version 1.11. United States Geological Survey. Occurrence dataset https://doi.org/10.15468/t4rau8 accessed via GBIF.org on 2026-11-13.
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.
