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

colorful ichneumon - Acrotaphus wiltii something orange - Acrotaphus wiltii Acrotaphus wiltii  - Acrotaphus wiltii - female Ichneumon Wasp - Acrotaphus wiltii - male this was found in south Florida. what is it? I can find it no where - Acrotaphus fuscipennis - female UNK Wasp - Acrotaphus wiltii - female Acrotaphus wiltii? - Acrotaphus wiltii Orange wasp with black head and antennae - Acrotaphus wiltii
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 Ichneumonoidea (Braconid and Ichneumonid Wasps)
Family Ichneumonidae (Ichneumonid Wasps)
Subfamily Pimplinae
Tribe Ephialtini
No Taxon (Polysphincta Genus Group)
Genus Acrotaphus
Synonyms and other taxonomic changes
Townes placed this genus in his Ephialtinae, for which the currently valid name is Pimplinae.
3 spp.* in the US; a total of 10 spp. are known worldwide(Brambila & Porter, 2005)
*Species not yet in the guide: Acrotaphus tibialis (TX)

A. fuscipennis - head, antennae, entirety of wings, and most of legs black; thorax, abdomen, coxae, and bases of femora red (FL only)

A. wiltii - head, antennae, two bands on forewings, and apex of abdomen black; thorax, rest of abdomen, legs, and rest of wings orange (widespread eastern)

-no photo, see BOLD specimens-
A. tibialis - much like A. wiltii but with brighter wings, black band on hind wings, and black hind femora (TX only)
Nine of the 10 spp. are Neotropical, of which 2 reach the only as far north as the southern states (TX, FL). Only 1 (A. wiltii) is prevalent in the Nearcic and reaches to southern Canada.(Brambila & Porter, 2005)
Parasites of orb-web spiders of the families Araneidae and Tetragnathidae (Gauld 2000, quoted by Brambila & Porter (2005))