Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Sawfly Larvae for ID - Nematus

Sawfly Larvae for ID - Nematus
Catoctin Mountain, Frederick County, Maryland, USA
September 7, 2019
On Belula lenta.

Moved from Craesus.


Craesus sp.
It is very similar to Craesus latipes but according to "Sawflies of the genus Croesus LEACH in Noth America, David R. Smith, 1972" there are four species in Noth America: C. latitarsus, C. curvarius, C. castaneae and C. varus (= C. alniastri). Also described there is the dark form of C. latitarsus, where individual spots merge into wide black stripes. So maybe it's C. latitarsus.