SpidersIn Cuyahoga County, Ohio

Triangulate Combfoot

Steatoda triangulosa (Walckenaer, 1802)

Triangulate Combfoot in all of Ohio
Triangulate Combfoot (Steatoda triangulosa)
(c) Patrick Hacker, some rights reserved (CC BY), uploaded by Patrick Hacker · CC BY 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
Kingdom
Animalia
Phylum
Arthropoda
Order
Araneae

Introduced and invasive status

Introduced in Ohio: iNaturalist (opens in a new tab)

iNaturalist's volunteer curators list it as introduced in their Ohio checklist.

Near Cuyahoga County

Range

Where it is recorded

Season shown in 0 of Ohio's 88 counties. Explore Ohio

  • No result yet (43)
  • Recorded, too few records for a result (40)
  • Recorded, season not shown (5)
  • Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Triangulate Combfoot by Ohio county: records and mapped range
CountyRecords
Adams CountyNo qualifying records yet
Allen CountyRecorded, too few records for a result
Ashland CountyRecorded, too few records for a result
Ashtabula CountyNo qualifying records yet
Athens CountyRecorded, too few records for a result
Auglaize CountyNo qualifying records yet
Belmont CountyNo qualifying records yet
Brown CountyNo qualifying records yet
Butler County37 · Recorded, season not shown
Carroll CountyNo qualifying records yet
Champaign CountyRecorded, too few records for a result
Clark CountyRecorded, too few records for a result
Clermont CountyRecorded, too few records for a result
Clinton CountyRecorded, too few records for a result
Columbiana CountyNo qualifying records yet
Coshocton CountyRecorded, too few records for a result
Crawford CountyRecorded, too few records for a result
Cuyahoga County30 · Recorded, season not shown
Darke CountyRecorded, too few records for a result
Defiance CountyRecorded, too few records for a result
Delaware CountyRecorded, too few records for a result
Erie CountyRecorded, too few records for a result
Fairfield CountyRecorded, too few records for a result
Fayette CountyNo qualifying records yet
Franklin County61 · Recorded, season not shown
Fulton CountyRecorded, too few records for a result
Gallia CountyNo qualifying records yet
Geauga CountyRecorded, too few records for a result
Greene CountyRecorded, too few records for a result
Guernsey CountyNo qualifying records yet
Hamilton County36 · Recorded, season not shown
Hancock CountyRecorded, too few records for a result
Hardin CountyNo qualifying records yet
Harrison CountyNo qualifying records yet
Henry CountyNo qualifying records yet
Highland CountyNo qualifying records yet
Hocking CountyNo qualifying records yet
Holmes CountyNo qualifying records yet
Huron CountyNo qualifying records yet
Jackson CountyNo qualifying records yet
Jefferson CountyNo qualifying records yet
Knox CountyRecorded, too few records for a result
Lake CountyRecorded, too few records for a result
Lawrence CountyNo qualifying records yet
Licking CountyRecorded, too few records for a result
Logan CountyRecorded, too few records for a result
Lorain CountyRecorded, too few records for a result
Lucas County33 · Recorded, season not shown
Madison CountyNo qualifying records yet
Mahoning CountyRecorded, too few records for a result
Marion CountyRecorded, too few records for a result
Medina CountyRecorded, too few records for a result
Meigs CountyNo qualifying records yet
Mercer CountyRecorded, too few records for a result
Miami CountyRecorded, too few records for a result
Monroe CountyNo qualifying records yet
Montgomery CountyRecorded, too few records for a result
Morgan CountyNo qualifying records yet
Morrow CountyNo qualifying records yet
Muskingum CountyNo qualifying records yet
Noble CountyNo qualifying records yet
Ottawa CountyRecorded, too few records for a result
Paulding CountyNo qualifying records yet
Perry CountyNo qualifying records yet
Pickaway CountyNo qualifying records yet
Pike CountyRecorded, too few records for a result
Portage CountyRecorded, too few records for a result
Preble CountyNo qualifying records yet
Putnam CountyNo qualifying records yet
Richland CountyRecorded, too few records for a result
Ross CountyNo qualifying records yet
Sandusky CountyNo qualifying records yet
Scioto CountyRecorded, too few records for a result
Seneca CountyNo qualifying records yet
Shelby CountyNo qualifying records yet
Stark CountyRecorded, too few records for a result
Summit CountyRecorded, too few records for a result
Trumbull CountyNo qualifying records yet
Tuscarawas CountyRecorded, too few records for a result
Union CountyNo qualifying records yet
Van Wert CountyNo qualifying records yet
Vinton CountyNo qualifying records yet
Warren CountyRecorded, too few records for a result
Washington CountyNo qualifying records yet
Wayne CountyRecorded, too few records for a result
Williams CountyNo qualifying records yet
Wood CountyRecorded, too few records for a result
Wyandot CountyNo 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 Cuyahoga County

Not enough evidence

The weeks are still too uncertain to show a season. Based on 30 records in 8 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
Show over the bars
Recording in Cuyahoga County · records of all species each week, 92,154 in all

Records per week from 30 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 Triangulate Combfoot in Cuyahoga County each week, and records of all species
WeekRecords of Triangulate CombfootYears recordedRecords of all species
Jan 4–1011468
Jan 11–1700502
Jan 18–2400393
Jan 25–3111380
Feb 1–700590
Feb 8–1400504
Feb 15–2111455
Feb 22–2800583
Mar 1–700567
Mar 8–1400750
Mar 15–2100819
Mar 22–2800780
Mar 29 – Apr 4111,014
Apr 5–11001,655
Apr 12–18002,306
Apr 19–25001,857
Apr 26 – May 2114,135
May 3–9112,830
May 10–16112,640
May 17–23002,938
May 24–30112,903
May 31 – Jun 6112,621
Jun 7–13112,326
Jun 14–20002,465
Jun 21–27002,426
Jun 28 – Jul 4002,632
Jul 5–11112,765
Jul 12–18002,898
Jul 19–25112,860
Jul 26 – Aug 1002,736
Aug 2–8113,021
Aug 9–15002,627
Aug 16–22112,732
Aug 23–29112,388
Aug 30 – Sep 5003,076
Sep 6–12113,578
Sep 13–19113,735
Sep 20–26113,328
Sep 27 – Oct 3222,834
Oct 4–10222,275
Oct 11–17431,937
Oct 18–24001,181
Oct 25–31221,172
Nov 1–700893
Nov 8–1411854
Nov 15–2111485
Nov 22–2800552
Nov 29 – Dec 500448
Dec 6–1200498
Dec 13–1900458
Dec 20–2600575
Dec 27 – Jan 200709

In Ohio

Early March to late November, middle week Aug 16–22

Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all

Records per week from 544 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 447 dates. Latest record: December 2025.

Show as a table
Records of Triangulate Combfoot in Ohio each week, and records of all species
WeekRecords of Triangulate CombfootYears recordedRecords of all species
Jan 4–10636,211
Jan 11–17005,146
Jan 18–24444,645
Jan 25–31434,698
Feb 1–7436,023
Feb 8–14225,888
Feb 15–21635,436
Feb 22–28546,846
Mar 1–7328,321
Mar 8–143210,384
Mar 15–216312,620
Mar 22–284313,949
Mar 29 – Apr 44319,661
Apr 5–114326,860
Apr 12–185439,925
Apr 19–2515541,623
Apr 26 – May 212556,391
May 3–912552,952
May 10–1611553,785
May 17–2319757,698
May 24–3013654,651
May 31 – Jun 68453,099
Jun 7–1320653,700
Jun 14–2013456,625
Jun 21–2713555,361
Jun 28 – Jul 49458,477
Jul 5–1113561,336
Jul 12–1814664,722
Jul 19–259569,753
Jul 26 – Aug 110459,416
Aug 2–89559,712
Aug 9–1513655,994
Aug 16–2214454,328
Aug 23–2916751,772
Aug 30 – Sep 511557,167
Sep 6–1216659,075
Sep 13–1926854,543
Sep 20–2628645,860
Sep 27 – Oct 314643,180
Oct 4–1029837,841
Oct 11–1724730,824
Oct 18–2415621,156
Oct 25–3120719,021
Nov 1–79414,172
Nov 8–1410412,621
Nov 15–21757,965
Nov 22–28758,136
Nov 29 – Dec 5836,083
Dec 6–12116,004
Dec 13–19635,423
Dec 20–26425,661
Dec 27 – Jan 2648,459

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.

Often confused with

  • Common House Spider Parasteatoda tepidariorumOften confused in Ohio: 10 identifications in Ohio named one where the other was meant
  • Boreal Combfoot Steatoda borealis53 identifications worldwide named one where the other was meant
  • Common Spitting Spider Scytodes thoracica38 identifications worldwide named one where the other was meant
  • Furrow Orbweaver Larinioides cornutus14 identifications worldwide named one where the other was meant
  • Cross Orbweaver Araneus diadematus13 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.

Time of day it is recorded

midnight6 amnoon6 pm

From 541 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 coverIts recordsAll Ohio records
Developed94%49%
Farmland4%11%
Forest2%31%
Barren0.6%0.6%

From 339 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
  • See it on iNaturalist (opens in a new tab)OpenPhenology is independent and not affiliated with iNaturalist.

Records behind the Ohio result

544 records from 2 datasets.

To cite: the GBIF download doi:10.15468/dl.y2jkt8 (opens in a new tab).

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.