Anthrax aterrimus
(Bigot, 1892)
Anthrax aterrimus is a bee fly in the Bombyliidae, Anthracinae. The larval stage has been documented as an external on the pre-pupal or pupal stages of the mason wasp Monobia quadridens. As with other members of the Anthrax, likely visit flowers for nectar. The was described by Bigot in 1892.

Pronunciation
How to pronounce Anthrax aterrimus: //ˈæn.θræks əˈtɛr.ɪ.məs//
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Images
Host Associations
- Monobia quadridens - Larva feeds externally on pre-pupal or pupal ; documented in Krombein (1967)
Ecological Role
of solitary , specifically Monobia quadridens. Contributes to natural of wasps.
Similar Taxa
- Anthrax analisAlso parasitizes larvae, but documented primarily on tiger larvae () rather than mason wasps
- Anthrax georgicusFormerly considered with A. analis; parasitizes tiger larvae (Cicindela spp.)
Sources and further reading
- BugGuide
- iNaturalist taxon
- Catalogue of Life
- Bug Eric: October 2012
- Bombyliidae | Beetles In The Bush | Page 2
- ID Challenge #11 | Beetles In The Bush
- Ground nesting bees beware of the bee fly: Bombyliidae — Bug of the Week
- Danger afoot for ground nesting bees: Look out for bee flies, Bombyliidae — Bug of the Week
- Bug Eric: The Stable Fly