Large Rose Sawfly, Stephensian Hylotoma (Arge pagana stephensii)

Order: Hymenoptera (hy-men-OP-ter-a) (Info)
Family: Argidae
Genus: Arge
Species: pagana stephensii

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On Jul 4, 2007, wallaby1 from Lincoln
United Kingdom (Zone 8a) wrote:

This subspecies can be seen illustrated on the following site,

http://delta-intkey.com/britin/hym/www/argidae.htm

They will produce two, sometimes three generations from May to October. The female lays eggs in soft new shoots of roses, when the larvae are fully fed they pupate in the soil.