Pearly Wood-nymph (Eudryas unio)
(c) Heather Pickard, some rights reserved (CC BY-NC), uploaded by Heather Pickard · CC BY-NC 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
Butterflies and mothsIn Ottawa County, Ohio

Pearly Wood-nymph

Eudryas unio Hübner, 1831

Pearly Wood-nymph in all of Ohio
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Family
Noctuidae
Genus
Eudryas
Near Ottawa County

Range

Where it is recorded

Season shown in 1 of Ohio's 88 counties. Explore Ohio

  • No result yet (36)
  • Recorded, too few records for a result (50)
  • Recorded, season not shown (1)
  • Season shown (1)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Pearly Wood-nymph by Ohio county: records and mapped range
CountyRecords
Adams CountyRecorded, too few records for a result
Allen CountyRecorded, too few records for a result
Ashland CountyRecorded, too few records for a result
Ashtabula CountyRecorded, too few records for a result
Athens CountyRecorded, too few records for a result
Auglaize CountyNo qualifying records yet
Belmont CountyNo qualifying records yet
Brown CountyNo qualifying records yet
Butler CountyRecorded, too few records for a result
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 CountyNo qualifying records yet
Crawford CountyRecorded, too few records for a result
Cuyahoga County23 · Recorded, season not shown
Darke CountyNo qualifying records yet
Defiance CountyNo qualifying records yet
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 CountyRecorded, too few records for a result
Fulton CountyNo qualifying records yet
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 CountyRecorded, too few records for a result
Hancock CountyRecorded, too few records for a result
Hardin CountyNo qualifying records yet
Harrison CountyNo qualifying records yet
Henry CountyNo qualifying records yet
Highland CountyRecorded, too few records for a result
Hocking CountyRecorded, too few records for a result
Holmes CountyRecorded, too few records for a result
Huron CountyNo qualifying records yet
Jackson CountyNo qualifying records yet
Jefferson CountyNo qualifying records yet
Knox CountyNo qualifying records yet
Lake CountyRecorded, too few records for a result
Lawrence CountyNo qualifying records yet
Licking CountyRecorded, too few records for a result
Logan CountyNo qualifying records yet
Lorain CountyRecorded, too few records for a result
Lucas CountyRecorded, too few records for a result
Madison CountyRecorded, too few records for a result
Mahoning CountyRecorded, too few records for a result
Marion CountyNo qualifying records yet
Medina CountyRecorded, too few records for a result
Meigs CountyNo qualifying records yet
Mercer CountyNo qualifying records yet
Miami CountyRecorded, too few records for a result
Monroe CountyNo qualifying records yet
Montgomery CountyRecorded, too few records for a result
Morgan CountyRecorded, too few records for a result
Morrow CountyNo qualifying records yet
Muskingum CountyRecorded, too few records for a result
Noble CountyNo qualifying records yet
Ottawa County21 · Season shown
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 CountyRecorded, too few records for a result
Putnam CountyNo qualifying records yet
Richland CountyRecorded, too few records for a result
Ross CountyNo qualifying records yet
Sandusky CountyRecorded, too few records for a result
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 CountyRecorded, too few records for a result
Tuscarawas CountyRecorded, too few records for a result
Union CountyRecorded, too few records for a result
Van Wert CountyNo qualifying records yet
Vinton CountyNo qualifying records yet
Warren CountyRecorded, too few records for a result
Washington CountyRecorded, too few records for a result
Wayne CountyRecorded, too few records for a result
Williams CountyRecorded, too few records for a result
Wood CountyRecorded, too few records for a result
Wyandot CountyRecorded, 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 Ottawa County

Mid-May to late September, middle week Jul 26 – Aug 1

Show over the bars
Recording in Ottawa County · records of all species each week, 13,333 in all

Records per week from 21 records in 6 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 19 dates. Latest record: September 2025.

Show as a table
Records of Pearly Wood-nymph in Ottawa County each week, and records of all species
WeekRecords of Pearly Wood-nymphYears recordedRecords of all species
Jan 4–100042
Jan 11–170040
Jan 18–240041
Jan 25–310014
Feb 1–70022
Feb 8–140022
Feb 15–210037
Feb 22–280078
Mar 1–70065
Mar 8–140041
Mar 15–210062
Mar 22–280079
Mar 29 – Apr 40079
Apr 5–110080
Apr 12–1800189
Apr 19–2500235
Apr 26 – May 200203
May 3–900557
May 10–16001,468
May 17–23221,043
May 24–3000430
May 31 – Jun 611351
Jun 7–1311223
Jun 14–2021267
Jun 21–2711463
Jun 28 – Jul 411405
Jul 5–1100376
Jul 12–1811448
Jul 19–2500387
Jul 26 – Aug 153406
Aug 2–811430
Aug 9–1511814
Aug 16–2211447
Aug 23–2900353
Aug 30 – Sep 511430
Sep 6–1200406
Sep 13–1911448
Sep 20–2600366
Sep 27 – Oct 321274
Oct 4–1000280
Oct 11–1700169
Oct 18–2400136
Oct 25–3100105
Nov 1–70081
Nov 8–1400136
Nov 15–210040
Nov 22–280053
Nov 29 – Dec 50051
Dec 6–120036
Dec 13–190031
Dec 20–260042
Dec 27 – Jan 20052

Reported as an adult

Only 18 records here are marked as adults, too few to show a adult season. One needs at least 20 records from 5 different years.

Reported as a caterpillar

Only 3 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

Mid-May to mid-July, middle week mid-June, and again late July to late September, middle week mid-August

Recorded in two separate seasons, each shown with its own early, middle and late weeks.

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

Records per week from 334 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 Pearly Wood-nymph in Ohio each week, and records of all species
WeekRecords of Pearly Wood-nymphYears recordedRecords of all species
Jan 4–10006,211
Jan 11–17005,146
Jan 18–24004,645
Jan 25–31004,698
Feb 1–7006,023
Feb 8–14005,888
Feb 15–21005,436
Feb 22–28006,846
Mar 1–7008,321
Mar 8–140010,384
Mar 15–210012,620
Mar 22–280013,949
Mar 29 – Apr 40019,661
Apr 5–110026,860
Apr 12–180039,925
Apr 19–250041,623
Apr 26 – May 20056,391
May 3–90052,952
May 10–160053,785
May 17–2311357,698
May 24–304254,651
May 31 – Jun 612553,099
Jun 7–1321853,700
Jun 14–2024856,625
Jun 21–2726855,361
Jun 28 – Jul 418658,477
Jul 5–1115661,336
Jul 12–1811664,722
Jul 19–2510369,753
Jul 26 – Aug 123759,416
Aug 2–820959,712
Aug 9–1537955,994
Aug 16–2233754,328
Aug 23–2918851,772
Aug 30 – Sep 515657,167
Sep 6–1212559,075
Sep 13–197354,543
Sep 20–265445,860
Sep 27 – Oct 36343,180
Oct 4–102237,841
Oct 11–172130,824
Oct 18–240021,156
Oct 25–311119,021
Nov 1–70014,172
Nov 8–141112,621
Nov 15–21007,965
Nov 22–28008,136
Nov 29 – Dec 5006,083
Dec 6–12006,004
Dec 13–19005,423
Dec 20–26005,661
Dec 27 – Jan 2008,459

Reported as an adult

Usually reported as an adult mid-May to mid-July, middle week mid-June. A later season is not shown: most records are from one year.

Reported as a caterpillar

Usually reported as a caterpillar early July to mid-October, middle week Aug 30 – Sep 5.

From 59 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.

Identification

How to identify it

Telling it apart

From what Ohio’s records show. Only what the records support is shown.

Often confused with

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 · 334 records
  • Reported as a caterpillarUsually early July to mid-October, middle week late August · 59 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

  1. Jan: no record
  2. Feb: no record
  3. Mar: no record
  4. Apr: no record
  5. May: recorded
  6. Jun: recorded
  7. Jul: recorded
  8. Aug: recorded
  9. Sep: recorded
  10. Oct: recorded
  11. Nov: recorded
  12. Dec: no record

Not reported in Ohio in December to April, 2016 to 2025.

Time of day it is recorded

midnight6 amnoon6 pm

From 331 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
Developed50%49%
Farmland21%11%
Forest15%31%
Wetland14%5%

From 188 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 Ottawa County result

21 records from 1 dataset.

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.