ODNR Division of Wildlife - A to Z Species Guide - Butterflies and Skippers - Persius Duskywing

Persius Duskywing

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 		 The persius duskywing is another of Ohio's endagered butterlies that feeds on blue lupine. It seems to be doing better with increased stands of its larval host, due to Karner blue conservation efforts. Currently, there are two known populations in the state, both in Lucas County.
 

Persius Duskywing
Erynnis persius

At-a-Glance

• Flight Period: May and June

• Wings: 1.3 - 1.6 cm
 
• Ohio Status: Endangered 
Description
The duskywings in general are tough to separate, and the persius duskywing is the most difficult of all. The best identifying characteristic is the row of white tooth-like spots on the tip of the dorsal forewings. These white spots are in a straight line; other duskywings' spots are not.

Habitat and Habits
The persius duskywing inhabits oak savannas and blue lupine. In Ohio, it currently exists only in Lucas County. When frightened, this species flies erratically into the underbrush. Adults rest on low vegetation with their wings held outstretched.

Reproduction and Care of the Young
This species is usually seen flying around and landing on lupine. Persius duskywings only lay their eggs on lupine growing in the sun.