Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes


TaxonomyBrowse
Info
ImagesLinksBooksData

Family Leucospidae

Chalcid Wasp - Leucospis affinis - female 8005077 - Leucospis - female Chalcid Wasp - Leucospis - female Leucospis wasp? - Leucospis - female Wasp Leucospis species? - Leucospis affinis Another female Leucospis? - Leucospis affinis - female Male Leucospis affinis? - Leucospis affinis New to me - Leucospis affinis - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitic Apocrita))
Superfamily Chalcidoidea (Chalcid Wasps)
Family Leucospidae
Numbers
6 spp. in a single genus in our area, >130 spp. in 4 genera worldwide(1)
Size
4-17 mm
Identification
Usually black and yellow. They are stout insects, they fold wings longitudinally at rest and look a little like small yellowjackets. The ovipositor is long and curves forward and upward over the abdomen, ending over the posterior part of the thorax. Like the Chalcidids they have the hind femora greatly swollen and toothed on the ventral side.(2)
Food
parasitoids of aculeate Hymenoptera (mainly solitary bees, less frequently solitary wasps, e.g. Vespidae and Sphecidae)(1)
Life Cycle
Eggs are deposited externally on the host larva or nearby. The first instar larva does not feed at first but searches the host cell for competitors; only one parasitoid larva survives and develops as an ectoparasitoid sucking the body fluids of the host.(1)
Remarks
rather rare; may be found on flowers(3)
Internet References
Works Cited
1.Universal Chalcidoidea Database
2.A handbook of the families of Nearctic Chalcidoidea (Hymenoptera). 2nd Edition
E.E. Grissell & M. E. Schauff. 1997. Entomological Society of Washington. 87pp.
3.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.