Dallas County Lepidopterists' Society
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Juvenal's Duskywing (Erynnis juvenalis)
Showing exposed stigma (scent scales) along the costal margin.
|Caterpillar Hostplants||Various 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),|
|Seasonal Flight Data||One brood, Late February - early May.|
|General Notes||Sometimes 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.|