Family Cephidae - Stem Sawflies

Classification · Numbers · Identification · Range · Food · Life Cycle · Remarks · Internet References · Works Cited

Which wasp, fly, or sawfly is this, please? - Hartigia trimaculata

Wood Wasp, Horntail ??? - Janus integer - male - female

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Class Insecta (Insects)

Order Hymenoptera (Ants, Bees, Wasps and Sawflies)

No Taxon (Sawflies, Horntails, and Wood Wasps)

Family Cephidae (Stem Sawflies)

Numbers

12 spp. in 6 genera north of Mexico(1)

Identification

Slender, laterally compressed. Elongated pronotum. Mostly black, some with light colored markings. Clubbed antennae.

Range

Across the continent(1)

Food

On grasses (incl. grain crops) and shrubs (incl. berries, roses, willows)(1)

Life Cycle

The larvae bore in the stems(1)

Remarks

Some are serious pests, for instance the wheat stem sawfly

Internet References

Exploring California Insects

Works Cited

1.	American Insects: A Handbook of the Insects of America North of Mexico By Ross H. Arnett

Contributed by Will Chatfield-Taylor on 6 June, 2007 - 7:44pm
Additional contributions by Beatriz Moisset, v belov, Harsi S. Parker
Last updated 13 January, 2010 - 2:16pm

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