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Photo#307505
Wasp (or Sawfly, or...?) ID Request - Hartigia trimaculata

Wasp (or Sawfly, or...?) ID Request - Hartigia trimaculata
Herring Run Park, Baltimore City County, Maryland, USA
July 20, 2009
Observed on Geum canadense [=incidental?]

Moved
Moved from Stem Sawflies.

Cephidae, Hartigia trimaculata (Say)
Stem borer of roses and berries.

 
Thanks,
Dave. Geum species are in the Rosaceae family, so perhaps Geum canadense is a host for this sawfly?

 
Host
Geum is possible, but so far it hasn't been recorded as host. I don't find Geum recorded as a host for other Hartigia species in Europe either.

Moved
Moved from ID Request.