Erynnis persius, commonly known as Persius duskywing,[1] is a species of butterfly in the family Hesperiidae that occurs in North America. The eastern subspecies Erynnis persius persius is rarer and protected by law in some regions.
| Persius duskywing | |
|---|---|
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Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Hesperiidae |
| Genus: | Erynnis |
| Species: | E. persius
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| Binomial name | |
| Erynnis persius Scudder(1863)
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Description
editThe upperside of both the forewings and hindwings are a dark brown color. The forewing has clear spots with other dim markings and the patch at the end of the cell is gray. Males have raised white hairs on their forewings. The hindwings are fringed with darker brown to black and have another fringe that is creamy white. Females have a scent scale patch on their 7th abdominal segment.[2] The species may be difficult to distinguish from other duskywing skippers.[3]
Caterpillars of this species are light green with a reddish cast and covered with fine, short hairs. Their head is all brownish black.[4]
Range
editThe Persius Duskywing has a wide range across North America from Alaska to southeastern Manitoba, covering much of the western United States down to Arizona and New Mexico. The eastern population ranges from New England west to Wisconsin, and south to Virginia.[5]
Life Cycle
editThe Persius Duskywing has a single annual generation. The mature larva hibernates and pupates between April - June. [6] Males seek females by perching on the ground or on low vegetation, and females lay eggs on the host plant vegetation.[7] Caterpillar hosts include Lupine (Lupinus), golden banner (Thermopsis), Lotus, and other legumes. Adults feed on flower nectar.[8] The larval form of subspecies E. persius persius is dependent on the wild blue lupine, Lupinus perennis, as a host plant.[9]
Conservation
editThe species is ranked as globally secure, however the eastern subspecies is rare and in severe decline. Reasons include habitat destruction and alteration, decline of its food plant the wild blue lupine (Lupinus perennis), and pesticide spraying for Spongy Moth (Lymantria dispar). It is thought to be extirpated in Ontario. [10]
It is protected by law as a threatened species in Michigan[11] and an endangered species in Minnesota, Ohio, New York, and New Hampshire.[12][13][14][15] The subspecies Erynnis persius persius is listed as endangered in Connecticut,[16] and endangered in Canada under the Species at Risk act.[17]
References
edit- ^ "Species Erynnis persius - Persius Duskywing - BugGuide". Retrieved 2009-06-13.
- ^ "Species Detail - BMNA". Archived from the original on 2010-06-20. Retrieved 2009-06-13.
- ^ "Erynnis persius persius - Rare Species Guide". Minnesota DNR.
- ^ Nielsen, Mogens C. (1999). "Skippers". Michigan Butterflies & Skippers A Field Guide and Reference. Michigan State University Extension. pp. 192–193. ISBN 1-56525-012-5.
- ^ "Persius Duskywing Erynnis persius (Scudder, 1863) | Butterflies and Moths of North America". Retrieved 2024-08-04.
- ^ "Erynnis persius persius - Rare Species Guide". Minnesota DNR.
- ^ "Butterflies of California". Retrieved 2024-08-04.
- ^ "Persius Duskywing Erynnis persius (Scudder, 1863) | Butterflies and Moths of North America".
- ^ "Erynnis persius". Animal Diversity Web.
- ^ "Erynnis Persius, NatureServe". Retrieved 2024-08-04.
- ^ "Michigan DNR Threatened and Endangered Species". Retrieved 2024-08-04.
- ^ "Minnesota's List of Endangered, Threatened, and Special Concern Species" (PDF). Retrieved 2024-08-04.
- ^ "Ohio's Listed Species" (PDF). Retrieved 2024-08-04.
- ^ "List of Endangered, Threatened and Special Concern Fish and Wildlife Species of New York State". Retrieved 2024-08-04.
- ^ "Endangered and Threatened Wildlife of NH". Retrieved 2024-08-04.
- ^ "Department of Energy and Environmental Protection" (PDF).
- ^ "Species at Risk Act". Retrieved 2024-08-04.
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