New species of Ancistrocerus (Vespidae, Eumeninae) from the Neotropics with a checklist and key to all species...By Piekarski P.K., Carpenter J.M., Sharanowski B.J.
Zookeys 718: 139–154, 2017
Full title: New species of Ancistrocerus
(Vespidae, Eumeninae) from the Neotropics with a checklist and key to all species south of the Rio Grande
A review of Micropterocheilus Bohart, with its elevation to generic rank and description of new species (Hymenoptera: Eumenidae)By Richard M. Bohart
Journal of the Kansas Entomological Society, 72(2):197-213, 1999
Elevates the former subgenus Micropterocheilus
to generic rank, and contains a key and descriptions and/or discussions for 22 species therein...10 of them newly described.
Ancistroceroides de Saussure, a Potter Wasp Genus New for the United States, with a New Key to the Genera of Eumeninae N. of MexBy Carpenter, James M.
Journal of the Kansas Entomological Society 77(4): 721-741, 2004
Provides a key to genera of nearctic Eumeninae north of Mexico.
Vespidae (Insecta: Hymenoptera) of Puerto Rico, West IndiesBy Carpenter J.M., Genaro J.A.
Insecta Mundi 0202: 1-35, 2011
The social wasps of California (Vespinae, Polistinae, Polybiinae)By Bohart R.M., Bechtel R.C.
Bull. U.C. Insect Survey 4: 73-101, 1957
A generic key to the nests of hornets, yellowjackets, and paper wasps worldwide (Vespidae: Vespinae, Polistinae)By John W. Wenzel
American Museum novitates, No. 3224, 1998