Dallas County Lepidopterists' Society

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Juvenal's Duskywing (Erynnis juvenalis)

MALE (DORSAL)

MALE (VENTRAL)

MALE (DORSAL)
Showing exposed stigma (scent scales) along the costal margin.

FEMALE (DORSAL)

FEMALE (VENTRAL)

 

Caterpillar HostplantsVarious oaks, including White Oak (Quercus alba), Black Oak (Q. velutina), Bur Oak (Q. macrocarpa), Post Oak (Q. stellata), Blackjack Oak (Q. marilandica), Water Oak (Q. nigra),
Area Sighting
Locations
Lake Lewisville
Seasonal Flight DataOne brood, Late February - early May.
General NotesSometimes difficult to distinquish in the field from Erynnis horatius, the best way is to note that E. juvenalis usually has two small tan dots on the underside of the hindwing on the outside margin that E. horatioius lacks. Also, flight time can be an indicator in the field. If you see an Erynnis sp. in late summer or early fall it most likely is not Erynnis juvenalis.

Additional Photographs

OVA

 

 

LARVA

 

 

PUPA

ADULT


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