Recorded in 49 of Ohio's 88 counties, with too few records in each for a result.
No result yet (39)
Recorded, too few records for a result (49)
Recorded, season not shown (0)
Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Summer Fishfly by Ohio county: records and mapped range
County
Records
Adams County
Recorded, too few records for a result
Allen County
No qualifying records yet
Ashland County
Recorded, too few records for a result
Ashtabula County
Recorded, too few records for a result
Athens County
Recorded, too few records for a result
Auglaize County
No qualifying records yet
Belmont County
No qualifying records yet
Brown County
No qualifying records yet
Butler County
Recorded, too few records for a result
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
No qualifying records yet
Clermont County
Recorded, too few records for a result
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
Recorded, too few records for a result
Darke County
No qualifying records yet
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
Recorded, too few records for a result
Fulton County
No qualifying records yet
Gallia County
No qualifying records yet
Geauga County
Recorded, too few records for a result
Greene County
Recorded, too few records for a result
Guernsey County
No qualifying records yet
Hamilton County
Recorded, too few records for a result
Hancock County
Recorded, too few records for a result
Hardin County
No qualifying records yet
Harrison County
No qualifying records yet
Henry County
No qualifying records yet
Highland County
Recorded, too few records for a result
Hocking County
Recorded, too few records for a result
Holmes County
No qualifying records yet
Huron County
No qualifying records yet
Jackson County
No qualifying records yet
Jefferson County
Recorded, too few records for a result
Knox County
Recorded, too few records for a result
Lake County
Recorded, too few records for a result
Lawrence County
Recorded, too few records for a result
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
Recorded, too few records for a result
Madison County
No qualifying records yet
Mahoning County
Recorded, too few records for a result
Marion County
No qualifying records yet
Medina County
Recorded, too few records for a result
Meigs County
No qualifying records yet
Mercer County
No qualifying records yet
Miami County
Recorded, too few records for a result
Monroe County
No qualifying records yet
Montgomery County
No qualifying records yet
Morgan County
No qualifying records yet
Morrow County
Recorded, too few records for a result
Muskingum County
Recorded, too few records for a result
Noble County
No qualifying records yet
Ottawa County
No qualifying records yet
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
No qualifying records yet
Putnam County
No qualifying records yet
Richland County
Recorded, too few records for a result
Ross County
No qualifying records yet
Sandusky County
No qualifying records yet
Scioto County
Recorded, too few records for a result
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
Recorded, too few records for a result
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
No qualifying records yet
Wayne County
Recorded, too few records for a result
Williams County
Recorded, too few records for a result
Wood County
No qualifying records yet
Wyandot County
No qualifying records yet
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
Not enough evidence
The weeks are still too uncertain to show a season. Based on 244 records in 10 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
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 244 records in 10 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 Summer Fishfly in Ohio each week, and records of all species
Week
Records of Summer Fishfly
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
1
1
10,384
Mar 15–21
3
2
12,620
Mar 22–28
1
1
13,949
Mar 29 – Apr 4
1
1
19,661
Apr 5–11
0
0
26,860
Apr 12–18
1
1
39,925
Apr 19–25
2
2
41,623
Apr 26 – May 2
0
0
56,391
May 3–9
1
1
52,952
May 10–16
0
0
53,785
May 17–23
2
2
57,698
May 24–30
5
2
54,651
May 31 – Jun 6
9
6
53,099
Jun 7–13
13
7
53,700
Jun 14–20
13
6
56,625
Jun 21–27
13
8
55,361
Jun 28 – Jul 4
17
7
58,477
Jul 5–11
13
6
61,336
Jul 12–18
11
7
64,722
Jul 19–25
31
8
69,753
Jul 26 – Aug 1
21
9
59,416
Aug 2–8
17
8
59,712
Aug 9–15
24
8
55,994
Aug 16–22
24
7
54,328
Aug 23–29
9
5
51,772
Aug 30 – Sep 5
5
4
57,167
Sep 6–12
1
1
59,075
Sep 13–19
2
1
54,543
Sep 20–26
3
3
45,860
Sep 27 – Oct 3
0
0
43,180
Oct 4–10
0
0
37,841
Oct 11–17
0
0
30,824
Oct 18–24
0
0
21,156
Oct 25–31
1
1
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 August, middle week Jul 19–25.
From 232 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
Only 12 records here are marked as larvae, too few to show a larva season. 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.
Spring FishflyChauliodes rastricornisOften confused in Ohio: 38 identifications in Ohio named one where the other was meant
Neohermes concolorNeohermes concolorOften confused in Ohio: 13 identifications in Ohio named one where the other was meant
Eastern DobsonflyCorydalus cornutusOften confused in Ohio: 12 identifications in Ohio named one where the other was meant
Saw-combed FishflyNigronia serricornis18 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 recordsNo season shown · 244 records
Reported as maleUsually late May to mid-August, middle week mid-July · 62 records
Reported as femaleUsually early June to late August, middle week mid-July · 145 records
Reported as an adultUsually late May to late August, middle week mid-July · 232 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.
Time of day it is recorded
midnight6 amnoon6 pm
From 239 Ohio records with a time. Most records are made when people are outside, so night and early-morning species are under-recorded.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
44%49%
Forest
39%31%
Farmland
12%11%
Wetland
4%5%
Barren
0.7%0.6%
From 137 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.
