Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Trachelus tabidus - Black Grain Stem Sawfly

wasp? - Trachelus tabidus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Cephidae (Stem Sawflies)
Tribe Cephini
Genus Trachelus
Species tabidus (Black Grain Stem Sawfly)
Synonyms and other taxonomic changes
Cephus nigritus Lep.
Explanation of Names
Author: Fabricius, 1775
native to Middle and Western Europe (northward to Germany), Asia Minor, Northern Africa (Egypt, Algeria). Introduced in NA and known from ne. US (NH-VA west to MI, OH)
infests cultivated grains only
Life Cycle
A serious pest of many cereals