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Species Chelostoma philadelphi - Mock-orange Scissor Bee

bee - Chelostoma philadelphi small black fly - Chelostoma philadelphi Tiny wasp? Winged ant? - Chelostoma philadelphi Chelostoma philadelphi - male Chelostoma philadelphi - male Ant-like Bee - Chelostoma philadelphi? - Chelostoma philadelphi - female Ant-like Bee - Chelostoma philadelphi? - Chelostoma philadelphi - female Bee 1 - Chelostoma philadelphi - male
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 Megachilidae (Leafcutter, Mason, and Resin Bees, and allies)
Subfamily Megachilinae (Leafcutter, Resin, Mortar, Sharptail, Mason, and Woolcarder bees and relatives)
Tribe Osmiini (Mason bees and relatives)
Genus Chelostoma
No Taxon (Subgenus Prochelostoma, Mock-orange Scissor Bee)
Species philadelphi (Mock-orange Scissor Bee)
Synonyms and other taxonomic changes
Heriades philadelphi Robertson, 1891; Prochelostoma philadelphi (Robertson, 1891)
Explanation of Names
Author: Robertson, 1891
Female 8mm, male 6-7mm
Chelostoma are longer than most Osmini because of their elongated thorax. Identifying this genus means noticing where the tegula lie in relation to the thorax. Pretend you are drawing a "+" on the thorax. The ends of Chelostoma tegula (that part closest to the wings) are about midway as shown in this photo whereas in other Osmini the tegula ends are lower on the thorax as shown in this photo
Illinois and Michigan to Connecticut, south to Georgia.
March to July.
Includes Philadelphus. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.
Native species. The other two species in this genus in the area are introduced.
Internet References
Works Cited
1.The Bees in Your Backyard: A Guide to North America's Bees.
Joseph S. Wilson & Olivia J. Messinger Carril. 2015. Princeton University Press.