Season shown in 2 of Ohio's 88 counties. Explore Ohio
No result yet (42)
Recorded, too few records for a result (41)
Recorded, season not shown (3)
Season shown (2)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
American 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
Recorded, too few records for a result
Ashtabula County
No qualifying records yet
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
Recorded, too few records for a result
Carroll County
No qualifying records yet
Champaign County
Recorded, too few records for a result
Clark County
Recorded, too few records for a result
Clermont County
34 · Season shown
Clinton County
No qualifying records yet
Columbiana County
No qualifying records yet
Coshocton County
No qualifying records yet
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
No qualifying records yet
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
39 · Recorded, season not shown
Fulton County
No qualifying records yet
Gallia County
No qualifying records yet
Geauga County
No qualifying records yet
Greene County
Recorded, too few records for a result
Guernsey County
No qualifying records yet
Hamilton County
95 · Season shown
Hancock County
Recorded, too few records for a result
Hardin County
Recorded, too few records for a result
Harrison County
No qualifying records yet
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
No qualifying records yet
Jackson County
Recorded, too few records for a result
Jefferson County
No qualifying records yet
Knox County
Recorded, too few records for a result
Lake County
No qualifying records yet
Lawrence County
No qualifying records yet
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
26 · 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
Recorded, too few records for a result
Meigs County
No qualifying records yet
Mercer County
No qualifying records yet
Miami County
No qualifying records yet
Monroe County
No qualifying records yet
Montgomery County
62 · Recorded, season not shown
Morgan County
No qualifying records yet
Morrow County
No qualifying records yet
Muskingum County
Recorded, too few records for a result
Noble County
No qualifying records yet
Ottawa County
Recorded, too few records for a result
Paulding County
No qualifying records yet
Perry County
No qualifying records yet
Pickaway County
No qualifying records yet
Pike County
No qualifying records yet
Portage County
Recorded, too few records for a result
Preble County
No qualifying records yet
Putnam County
No qualifying records yet
Richland County
No qualifying records yet
Ross County
Recorded, too few records for a result
Sandusky County
No qualifying records yet
Scioto County
No qualifying records yet
Seneca County
No qualifying records yet
Shelby County
No qualifying records yet
Stark County
Recorded, too few records for a result
Summit County
Recorded, too few records for a result
Trumbull County
No qualifying records yet
Tuscarawas County
No qualifying records yet
Union County
No qualifying records yet
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
No qualifying records yet
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 Ohio
Mid-May to late September, middle week Aug 9–15
Middle week · Aug 9–15
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 516 records in 9 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 373 dates. Latest record: October 2025.
Show as a table
Records of American Bumble Bee in Ohio each week, and records of all species
Week
Records of American Bumble Bee
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
1
1
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
1
1
39,925
Apr 19–25
1
1
41,623
Apr 26 – May 2
1
1
56,391
May 3–9
8
4
52,952
May 10–16
7
5
53,785
May 17–23
10
4
57,698
May 24–30
17
8
54,651
May 31 – Jun 6
17
7
53,099
Jun 7–13
23
6
53,700
Jun 14–20
22
8
56,625
Jun 21–27
23
7
55,361
Jun 28 – Jul 4
15
6
58,477
Jul 5–11
15
6
61,336
Jul 12–18
18
6
64,722
Jul 19–25
14
7
69,753
Jul 26 – Aug 1
12
6
59,416
Aug 2–8
39
8
59,712
Aug 9–15
22
8
55,994
Aug 16–22
47
8
54,328
Aug 23–29
38
9
51,772
Aug 30 – Sep 5
30
7
57,167
Sep 6–12
42
9
59,075
Sep 13–19
37
8
54,543
Sep 20–26
19
7
45,860
Sep 27 – Oct 3
24
7
43,180
Oct 4–10
6
4
37,841
Oct 11–17
6
3
30,824
Oct 18–24
1
1
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 late September, middle week Aug 9–15.
From 100 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.
Golden Northern Bumble BeeBombus fervidusOften confused in Ohio: 50 identifications in Ohio named one where the other was meant
Black-and-gold Bumble BeeBombus auricomusOften confused in Ohio: 37 identifications in Ohio named one where the other was meant
Common Eastern Bumble BeeBombus impatiensOften confused in Ohio: 19 identifications in Ohio named one where the other was meant
Eastern Carpenter BeeXylocopa virginicaOften confused in Ohio: 13 identifications in Ohio named one where the other was meant
Brown-belted Bumble BeeBombus griseocollis138 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 mid-May to late September, middle week early August · 516 records
Reported as maleUsually late August to late September, middle week early September · 28 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: recorded
Mar: no record
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 March and November to January, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
64%49%
Farmland
20%11%
Forest
15%31%
Wetland
0.7%5%
Grassland and shrub
0.3%0.9%
Open water
0.3%3%
From 306 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 · 507 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 · 8 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.
