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TaxonomyBrowse
Info
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Family Leucospidae

Chalcid Wasp Leucospis affinis  - Leucospis affinis - female Leucospis affinis - female Crabronid? - Leucospis affinis - female male Leucospis affinis? - Leucospis affinis - male Euodynerus mimic? - Leucospis affinis Leucospis affinis? - Leucospis affinis Leucospid wasp? - Leucospis affinis - female Male, Leucospis birkmani? - Leucospis birkmani - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" - Parasitoid Wasps)
Superfamily Chalcidoidea (Chalcidoid 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, though those from Florida and surrounding states are often black and red. They are stout insects and fold their wings longitudinally at rest and look a little like small yellowjackets or mason wasps. The ovipositor is long in most species (apart from L. robertsoni and L. texana) and is curved forward and upward over the abdomen. 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
Grissell E.E., Schauff M. E. 1997. Ent. Soc. Wash. 87pp.
3.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.