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For Insects, Spiders & Their Kin
For the United States & Canada
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Species Acrotaphus wiltii

Cryptinae? - Acrotaphus wiltii - female Cryptinae? - Acrotaphus wiltii - female Ichneumon? - Acrotaphus wiltii - female Acrotaphus wiltii - female Acrotaphus wiltii - female Acrotaphus wiltii - female Acrotaphus wiltii - female UNK Wasp - Acrotaphus wiltii - female
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 Ichneumonoidea (Braconids and Ichneumons)
Family Ichneumonidae (Ichneumon Wasps)
Subfamily Pimplinae
Tribe Ephialtini
No Taxon (Polysphincta Genus Group)
Genus Acrotaphus
Species wiltii (Acrotaphus wiltii)
Explanation of Names
Acrotaphus wiltii (Cresson)
Fairly distinctive, with black bands on yellowish wings. More slender than species in similar genera with banded wings.
e. N. Amer. (QC s. to n. FL, w. to s. MB and TX)
Life Cycle
Parasite of the arabesque orb weaver, Neoscona arabesca. The wasp stings the spider to briefly paralyze it while she lays a single egg on it. The larva is an external parasite.