Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Photo#631521
Cool Sawfly (I guess...?) - Nematus

Cool Sawfly (I guess...?) - Nematus
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...?) - Nematus Cool Sawfly (I guess...?) - Nematus

Moved
Moved from 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.