Hackberry Emperor
Asterocampa celtis (Boisduval & Le Conte, 1833)
Hackberry Emperor in all of Ohio- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Lepidoptera
- Family
- Nymphalidae
- Genus
- Asterocampa
Range
Where it is recorded
Season shown in 5 of Ohio's 88 counties. Explore Ohio
- No result yet (20)
- Recorded, too few records for a result (49)
- Recorded, season not shown (14)
- Season shown (5)
Counties as a table
| 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 | 23 · 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 | 53 · Recorded, season not shown |
| Carroll County | No qualifying records yet |
| Champaign County | 27 · Recorded, season not shown |
| Clark County | 35 · Recorded, season not shown |
| Clermont County | 37 · Season shown |
| Clinton County | Recorded, too few records for a result |
| Columbiana County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Defiance County | Recorded, too few records for a result |
| Delaware County | 32 · Recorded, season not shown |
| Erie County | Recorded, too few records for a result |
| Fairfield County | 34 · Recorded, season not shown |
| Fayette County | Recorded, too few records for a result |
| Franklin County | 206 · Recorded, season not shown |
| Fulton County | Recorded, too few records for a result |
| Gallia County | Recorded, too few records for a result |
| Geauga County | No qualifying records yet |
| Greene County | 94 · Recorded, season not shown |
| Guernsey County | No qualifying records yet |
| Hamilton County | 144 · Recorded, season not shown |
| Hancock County | 43 · Season 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 | 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 | Recorded, too few records for a result |
| Knox County | Recorded, too few records for a result |
| Lake County | No qualifying records yet |
| Lawrence County | Recorded, too few records for a result |
| Licking County | 39 · Season shown |
| Logan County | Recorded, too few records for a result |
| Lorain County | Recorded, too few records for a result |
| Lucas County | 29 · Season shown |
| Madison County | 22 · Season shown |
| Mahoning County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Miami County | 25 · Recorded, season not shown |
| Monroe County | No qualifying records yet |
| Montgomery County | 101 · Recorded, season not shown |
| 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 | 41 · Recorded, season not shown |
| Paulding County | Recorded, too few records for a result |
| Perry County | No qualifying records yet |
| Pickaway County | Recorded, too few records for a result |
| Pike County | Recorded, too few records for a result |
| Portage County | No qualifying records yet |
| Preble County | Recorded, too few records for a result |
| Putnam County | No qualifying records yet |
| Richland County | Recorded, too few records for a result |
| 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 | Recorded, too few records for a result |
| Summit County | No qualifying records yet |
| Trumbull County | No qualifying records yet |
| Tuscarawas County | Recorded, too few records for a result |
| Union County | Recorded, too few records for a result |
| Van Wert County | No qualifying records yet |
| Vinton County | No qualifying records yet |
| Warren County | 47 · Recorded, season not shown |
| Washington County | Recorded, too few records for a result |
| Wayne County | Recorded, too few records for a result |
| Williams County | Recorded, too few records for a result |
| Wood County | 23 · Recorded, season not 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 Ottawa County
Early August to mid-September, middle week late August
Recorded in two separate seasons, each shown with its own early, middle and late weeks. An earlier season is not shown: only 16 records, too few.
Records per week from 41 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
| Week | Records of Hackberry Emperor | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 42 |
| Jan 11–17 | 0 | 0 | 40 |
| Jan 18–24 | 0 | 0 | 41 |
| Jan 25–31 | 0 | 0 | 14 |
| Feb 1–7 | 0 | 0 | 22 |
| Feb 8–14 | 0 | 0 | 22 |
| Feb 15–21 | 0 | 0 | 37 |
| Feb 22–28 | 0 | 0 | 78 |
| Mar 1–7 | 0 | 0 | 65 |
| Mar 8–14 | 0 | 0 | 41 |
| Mar 15–21 | 0 | 0 | 62 |
| Mar 22–28 | 0 | 0 | 79 |
| Mar 29 – Apr 4 | 0 | 0 | 79 |
| Apr 5–11 | 0 | 0 | 80 |
| Apr 12–18 | 0 | 0 | 189 |
| Apr 19–25 | 0 | 0 | 235 |
| Apr 26 – May 2 | 0 | 0 | 203 |
| May 3–9 | 0 | 0 | 557 |
| May 10–16 | 0 | 0 | 1,468 |
| May 17–23 | 0 | 0 | 1,043 |
| May 24–30 | 0 | 0 | 430 |
| May 31 – Jun 6 | 0 | 0 | 351 |
| Jun 7–13 | 0 | 0 | 223 |
| Jun 14–20 | 0 | 0 | 267 |
| Jun 21–27 | 2 | 2 | 463 |
| Jun 28 – Jul 4 | 6 | 3 | 405 |
| Jul 5–11 | 4 | 3 | 376 |
| Jul 12–18 | 3 | 2 | 448 |
| Jul 19–25 | 1 | 1 | 387 |
| Jul 26 – Aug 1 | 0 | 0 | 406 |
| Aug 2–8 | 0 | 0 | 430 |
| Aug 9–15 | 2 | 2 | 814 |
| Aug 16–22 | 3 | 3 | 447 |
| Aug 23–29 | 6 | 4 | 353 |
| Aug 30 – Sep 5 | 6 | 5 | 430 |
| Sep 6–12 | 4 | 2 | 406 |
| Sep 13–19 | 3 | 3 | 448 |
| Sep 20–26 | 0 | 0 | 366 |
| Sep 27 – Oct 3 | 0 | 0 | 274 |
| Oct 4–10 | 1 | 1 | 280 |
| Oct 11–17 | 0 | 0 | 169 |
| Oct 18–24 | 0 | 0 | 136 |
| Oct 25–31 | 0 | 0 | 105 |
| Nov 1–7 | 0 | 0 | 81 |
| Nov 8–14 | 0 | 0 | 136 |
| Nov 15–21 | 0 | 0 | 40 |
| Nov 22–28 | 0 | 0 | 53 |
| Nov 29 – Dec 5 | 0 | 0 | 51 |
| Dec 6–12 | 0 | 0 | 36 |
| Dec 13–19 | 0 | 0 | 31 |
| Dec 20–26 | 0 | 0 | 42 |
| Dec 27 – Jan 2 | 0 | 0 | 52 |
Reported as an adult
Usually reported as an adult early August to mid-September, middle week late August. An earlier season is not shown: only 16 records, too few.
Reported as a caterpillar
No records here are marked as caterpillars yet, so there is no caterpillar season to show. One needs at least 20 records from 5 different years.
In Ohio
Late May to mid-July, middle week late June, and again late July to mid-September, middle week mid-August
Recorded in two separate seasons, each shown with its own early, middle and late weeks.
Records per week from 1,773 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
| Week | Records of Hackberry Emperor | 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 | 0 | 0 | 10,384 |
| Mar 15–21 | 1 | 1 | 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 | 0 | 0 | 39,925 |
| Apr 19–25 | 0 | 0 | 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 | 1 | 1 | 57,698 |
| May 24–30 | 17 | 6 | 54,651 |
| May 31 – Jun 6 | 42 | 8 | 53,099 |
| Jun 7–13 | 81 | 8 | 53,700 |
| Jun 14–20 | 154 | 10 | 56,625 |
| Jun 21–27 | 123 | 10 | 55,361 |
| Jun 28 – Jul 4 | 82 | 9 | 58,477 |
| Jul 5–11 | 68 | 8 | 61,336 |
| Jul 12–18 | 39 | 8 | 64,722 |
| Jul 19–25 | 46 | 7 | 69,753 |
| Jul 26 – Aug 1 | 72 | 10 | 59,416 |
| Aug 2–8 | 178 | 10 | 59,712 |
| Aug 9–15 | 171 | 10 | 55,994 |
| Aug 16–22 | 193 | 10 | 54,328 |
| Aug 23–29 | 191 | 10 | 51,772 |
| Aug 30 – Sep 5 | 144 | 8 | 57,167 |
| Sep 6–12 | 98 | 10 | 59,075 |
| Sep 13–19 | 43 | 8 | 54,543 |
| Sep 20–26 | 15 | 6 | 45,860 |
| Sep 27 – Oct 3 | 4 | 4 | 43,180 |
| Oct 4–10 | 4 | 3 | 37,841 |
| Oct 11–17 | 1 | 1 | 30,824 |
| Oct 18–24 | 1 | 1 | 21,156 |
| Oct 25–31 | 1 | 1 | 19,021 |
| Nov 1–7 | 0 | 0 | 14,172 |
| Nov 8–14 | 1 | 1 | 12,621 |
| Nov 15–21 | 0 | 0 | 7,965 |
| Nov 22–28 | 0 | 0 | 8,136 |
| Nov 29 – Dec 5 | 1 | 1 | 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 mid-July, middle week late June, and again late July to mid-September, middle week mid-August.
Reported as a caterpillar
Only 9 records here are marked as caterpillars, too few to show a caterpillar 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.
Identification
How to identify it
Often confused with
- Tawny Emperor Asterocampa clytonOften confused in Ohio: 16 identifications in Ohio named one where the other was meant
- Northern Pearly-eye Lethe anthedon80 identifications worldwide named one where the other was meant
- Painted Lady Vanessa cardui64 identifications worldwide named one where the other was meant
- American Lady Vanessa virginiensis17 identifications worldwide named one where the other was meant
- Variegated Fritillary Euptoieta claudia16 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.
Months not reported
- Jan: no record
- Feb: no record
- Mar: recorded
- Apr: no record
- May: recorded
- Jun: recorded
- Jul: recorded
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: recorded
- Dec: no record
Not reported in Ohio in April and December to February, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Developed | 59%49% |
| Forest | 21%31% |
| Farmland | 12%11% |
| Wetland | 4%5% |
| Open water | 2%3% |
| Grassland and shrub | 1%0.9% |
| Barren | 0.8%0.6% |
From 950 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
1,773 records from 2 datasets.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 1,756 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.
- iNaturalist observations (opens in a new tab) · iNaturalist.org · 17 recordsiNaturalist. Available from https://www.inaturalist.org. Accessed 2026-11-13
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.