Identifying male Northern Broken Dashes

[Roger Kuhlman]

I have seen conflicting information about identifying male Northern 
Broken Dashes (Wallengrenia egeremet). Jeffrey Glassberg in "Butterflies 
through Binoculars" says the male usually has a tawny forewing margin. A 
butterfly photo in his book labelled male Northern Broken Dash clearly 
shows this feature. However Paul Opler's "Eastern Butterflies" does not 
mention this feature for the male and is not illustrated in any drawings 
of the species.

Which is correct? Does the butterfly have a tawny forewing margin or 
not? Where is the best place to get definitive information about skipper 
identification? There are a number of other very confusable skippers 
that I would like to distinguish in my butterfly surveys in the field.

Roger Kuhlman
rkuhlman at hotmail.com
Ann Arbor, Michigan
6-18-98

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