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Species Zacosmia maculata

Bee #4 - Zacosmia maculata Zacosmia maculata - male Determined-looking critter, originally a bee, then  a sawfly, then a bee again. And now, a sawfly once more. I quit! - Zacosmia maculata Hymenoptera-Zacosmia maculata - Zacosmia maculata Zacosmia NM - Zacosmia maculata - male Zacosmia NM - Zacosmia maculata - male Unknown California bee - Zacosmia maculata - female Unknown California bee - Zacosmia maculata - female
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)
No Taxon (Anthophila (Apoidea) - Bees)
Family Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
Subfamily Apinae (Honey, Bumble, Long-horned, Orchid, and Digger Bees)
Tribe Melectini (digger-bee-cuckoos)
Genus Zacosmia
Species maculata (Zacosmia maculata)
Two subspecies are currently recognized: desertorum and maculata (ITIS, see Internet Ref.)
smallest Melectini, 5-9 mm in body length. (Michener. 2000. (1))
Diagnostic characters include: fusiform (tapered at both ends, with median segments thickened) male flagellum; the marginal cell is ~ half as long as the distance from cell apex to wing tip. (1)
From southern Alberta, Canada, and WA, USA, south to Mexico (Baja California, Chihuahua, Durango)
The Hosts section on its Discover Life species page lists known associations based on specimen records and images.
Cleptoparasite of Anthophora (Heliophila) , in a manner similar to other Melectini. Females break into the hosts' closed cells, and posit their eggs on the cell cap or upper cell wall. They subsequently reclose the cell with secretion-moistened earth. (from Michener (1))
Print References
Torchio, P.F., and N.N. Youssef. 1968. The Biology of Anthophora (Micranthophora)flexipes and its cleptoparasite, Zacosmia maculata, including a description of the immature stages of the parasite. Journal of the Kansas Entomological Society 41:289-302.
Internet References
Works Cited
1.The Bees of the World
Charles Duncan Michener. 2000. Johns Hopkins University Press.