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Digital Guide to Moth Identification

8012635160Desmia maculalis – Westwood, 1831

Mark Dreiling - DNA
Description/
Field Marks:
A significant white spot on the head is, according to the Covell Field Guide, a characteristic mark of Desmia maculalis. Brian Scholtens had previously informed Bob Patterson that this is not a reliable character and that two species (D. maculalis and D. funeralis) cannot be distinguished in typical dorsal view photos. It would be necessary to see mouth parts at high magnification or examine genitalia to make specific determinations. It is best to consider photos of these species as representing a species group. More recently, he commented "The character that I use is the extent of the white patch on the underside of the abdomen. D. funeralis individuals have a solid white patch on the underside of the abdomen on segments 1-5 (or may have a slight break on segment 3). D. maculalis individuals have a broken white patch, where about 1/2 of segments 3 and 4 are clearly dark. Basically, maculalis looks striped on the underside, whereas funeralis looks like it is basically solid white."
References
Desmia maculalis
Mark Dreiling - DNA
Desmia maculalis
Ken Childs
Desmia maculalis
Ken Childs
Desmia maculalis
Jim Vargo

Moth Photographers Group  at the  Mississippi Entomological Museum  at the  Mississippi State University

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