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Genus Ageniella

pompilid with lynx - Ageniella arcuata Ageniella fulgifrons - male Spider wasp? - Ageniella Red Wasp - Ageniella coronata Ageniella accepta (Crotch) - Ageniella accepta - male Small wasp - Ageniella - female Ageniella Wasp ~10mm - Ageniella
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 Pompilidae (Spider Wasps)
Subfamily Pepsinae
Tribe Ageniellini
Genus Ageniella
Synonyms and other taxonomic changes
Recently invalidated names:
Ageniella partita (male of A. arcuata)
Ageniella obscura (taxonomic priority, valid name is A. utilis)

Ageniella blaisdelli, Ageniella conflicta may actually be conspecific with A. accepta based on molecular evidence (Waichert et al., 2011).
Explanation of Names
Ageniella Banks, 1912.
37 species:
Subgenus: Ageniella
Ageniella arenicola
Ageniella boharti
Ageniella evansi
Ageniella grisea
Ageniella joannae
Ageniella neglecta
Ageniella nivalis
Ageniella norata
Ageniella pallida
Ageniella seminole
Ageniella submetallica
Ageniella utilis
Ageniella vogeli
Subgenus: Ameragenia
Ageniella fasciata
Ageniella striga
Subgenus: Leucophrus
Ageniella incita
Subgenus: Nemagenia
Subgenus: Priophanes
Ageniella arizonica
Ageniella carolae
Ageniella fuscipennis
Ageniella pernia
Ageniella rufescens
Although some can be moderately large, most are rather small, near 10 mm.
Metasoma constricted basally so that it appears short-petiolate.
Propodeum practically bare, except in one subgenus (Ameragenia) where the posterior tibiae are serrate.
No crease delimiting an epipleurite on T1
S7 of male rather small and not as distinctly ridged longitudinally as in Phanagenia and Auplopus.
Females with at most a few weak setae on the mentum
Clypeus without a trough-like impression paralleling its lateroapical margin
One species or another occupies almost every conceivable terrestrial habitat from deserts to deciduous forests. See individual species for more specific information.
Throughout most of the warm season, males of some species can be found as early as May in the north (Ohio) (N. Fensler, unpublished data).
As adults some species are known to visit flowers (various umbellifers). The young feed on spiders, of course. They provision with various species of Agelenidae, Salticidae, Thomisidae, and Lycosidae.
See Also
Other genera of the tribe Ageniellini: Phanagenia, Auplopus, and Priocnemella.
Print References
See Krombein et al. (1) for notes on distribution and some prey records.
See Townes, 1957 (2) for species descriptions, distibutions, and dichotomous keys.
Wasbauer and Kimsey, "The Pompilidae of the Algodones Dunes, California, with description of new species (Hymenoptera: Pompilidae)", Pan-Pacific Entomologist 86:2-9 (2010). Describes two new species in the genus Ageniella from these dunes in Imperial County, as well as providing some data on the species of pompilids found at this location.
Waichert, C., C.D. von Dohlen, J.P. Pitts (2011) Does the Ageniella accepta species-group (Hymenoptera: Pompilidae) contain multiple species or a single, wide-ranging, morphologically variable species? Entomological Society of America Annual Meeting 2011 Conference Paper.
Works Cited
1.Catalog of Hymenoptera in America North of Mexico
Karl V. Krombein, Paul D. Hurd, Jr., David R. Smith, and B. D. Burks. 1979. Smithsonian Institution Press.
2.Nearctic Wasps of the Subfamilies Pepsinae and Ceropalinae
Henry K. Townes. 1957. Smithsonian Institute Press (Bulletin 209).