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Family Myrmosidae - Myrmosid Wasps

Myrmosula rutilans - male Bee/Wasp? Black, hairy, and punctate - Myrmosa Tiphiidae Hymenoptera  - Myrmosa Myrmosidae, wingless wasp, head & antennae - Myrmosa unicolor - female Hymenoptera 25 - Myrmosa Unknown Hymenoptera - Myrmosa
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
Superfamily Pompiloidea (Spider Wasps, Velvet Ants and allies)
Family Myrmosidae (Myrmosid Wasps)
Synonyms and other taxonomic changes
Used to be variously treated as a subfamily of the Mutillidae or Tiphiidae; now recognized as a distinct family (closely related to the Mutillidae) based on molecular data(1)
Numbers
16 spp. in 3 genera in our area(2)
Identification
Females are always wingless, much smaller than males, and have thorax divided in two distinct parts; males without a spine at the end of the abdomen.
Food
Larvae are parasites of various bees and wasps
Works Cited
1.Molecular phylogenetics of Vespoidea indicate paraphyly of the superfamily...
Pilgrim E.M., von Dohlen C.D., Pitts J.P. 2008. Zoologica Scripta 37: 539–560.
2.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.