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Photo#1381624
Sphiximorpha willistoni male? - Ceriana abbreviata - female
Copyright © 2017 Dave Crawford

Sphiximorpha willistoni male? - Ceriana abbreviata - Female
White Bear Lake, Ramsey County, Minnesota, USA
June 1, 2017
Single individual resting on leaf in native wildflower garden. Face marking and antenna branching are different from previously identified S. willistoni. Gender difference?

Images of this individual: tag all
Sphiximorpha willistoni male? - Ceriana abbreviata - female Sphiximorpha willistoni male? - Ceriana abbreviata - female Sphiximorpha willistoni male? - Ceriana abbreviata - female
Contributed by Dave Crawford on 8 June, 2017 - 6:51pm
Last updated 9 June, 2018 - 11:04pm

This is a female
...from "eyes dichoptic" (= well-separated at the top of the head)". In males the eyes are "holoptic" (= contiguous, medially, at the top of the head). Those characters work for distinguishing females and males throughout the tribe Cerioidini, and for many other groups within Diptera...though not all!)
… Aaron Schusteff, 9 June, 2018 - 11:02pm

Moved
Moved from ID Request.
… Ben Coulter, 8 June, 2017 - 7:16pm

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