Cossidae: Prionoxystus robiniae - Prionoxystus robiniae Grand Forks, Grand Forks County, North Dakota, USA July 5, 2013 Size: Length ~ 4-5 mm
The eggs finally hatched and the larvae--five of them--emerged on 05 July 2013. Larvae were quite active, and so I was disappointed to not obtain a better photo. Anyway, the one quasi-good image I did get is filed here. Larvae and eggs were released in the yard.
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