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Santa Barbara Field Guides Butterflies
Lepidoptera
   Hesperiidae

     Erynnis brizo
     Sleepy Duskywing


upperside
underside

Size: wingspread 1.25-1.5 in.
Recognition: Brown, upperside with double row of faint black markings in the FW; underside almost uniformly brown, with faint gray spots along edges of both wings.
Flight period: Adults are active in late spring and early summer.
Hostplants: The larvae eat various species of oak (Quercus), particularly low growing species, such as leather oak (Q. durata) and scrub oak (Q. berberidifolia).
Habitat: The Sleepy Duskywing is most often found in scrubby oak woodland and chaparral habitats.
Distribution: The Sleepy Duskywing has a patchy distribution across the U.S. It is found in coastal central and southern California, as well as in the southern Rocky Mountains (into Mexico) and in most of the U.S. east of the Mississippi River.
Other: Adults nectar on many flowers including verbena, heaths, redbud, and dandelions.

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