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Photo#1027867
Xylophagidae, dorsal - Coenomyia ferruginea - female

Xylophagidae, dorsal - Coenomyia ferruginea - Female
Plymouth Rock, Winneshiek County, Iowa, USA
June 13, 2014
Size: 23 mm
At first I thought I had collected 2 different species but after checking BG, they are the same species. This is the other individual:
Is this sexual dimorphism?
swept in a weedy ravine (where a small bulldozer did work to fix erosion from a February rain on frozen ground)

Images of this individual: tag all
Xylophagidae, dorsal - Coenomyia ferruginea - female Xylophagidae, lateral - Coenomyia ferruginea - female Xylophagidae, eyes - Coenomyia ferruginea - female Xylophagidae, ventral - Coenomyia ferruginea - female