Size
2-5 mm, rarely more than 10.
Identification
Small to medium sized, usually dark. Females of many species are wingless and ant-like.
Antennae with 12 or 13 segments.
Food
Parasites of larvae of Coleoptera and Lepidoptera.
Remarks
Some females have a painful sting.
Contributed by
Beatriz Moisset on 29 April, 2005 - 8:10am
Additional contributions by
Brad BarndLast updated 9 November, 2007 - 4:49pm