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Photo#631521
Cool Sawfly (I guess...?) - Craesus

Cool Sawfly (I guess...?) - Craesus
Atco, Camden County, New Jersey, USA
April 19, 2012
Size: 10mm?
Sorry these images are blurry... Found on autumn olive.
Look at those cool hind legs!!

Images of this individual: tag all
Cool Sawfly (I guess...?) - Craesus Cool Sawfly (I guess...?) - Craesus

Moved
Moved from Ants, Bees, Wasps and Sawflies. Cool, first adults of this genus in the guide.

Tenthredinidae, Nematinae
Craesus sp. The large, flattened hindbasitarsus is a character for the genus. Three species, all similar in color, occur in eastern U.S. They are separated by the texture of the mesopleuron and characters in the ovipositor - things I can't see in pictures. The most common is C. latitarsus Norton, the dusky birch sawfly. Other species feed on Castanea and Corylus. This is a very early record for a species of this genus. Most all emerge in the summer, July through August.

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