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Chelostoma philadelphi (Robertson, 1891)


Scientific Name: Chelostoma philadelphi (Robertson, 1891)

Common Name: Mock-orange Scissor Bee


Heriades philadelphi Robertson, 1891: 64 [♀, ♂].

     Lectotype ♀, designated by W.W. LaBerge, in Webb (1980: 117). USA, Illinois, Carlinville, 29 May 1888, by C.A. Ribertson, on Philadelphus grandiflorus [INHS, Robertson no. 7603].


Taxonomic Notes:

DNA Barcode Index Number (BIN): BOLD:AAJ0341

Biology: The nesting biology, with description of the eggs and mature larvae were described by Rozen and Go (2015); in that study, nests were constructed in pre-existing burrows created by the beetle Xylobiops basilaris (Say) in a branch of a dead Ficus carica Linnaeus. The nest consisted of a short linear row of cells. This species is consdered oligolectic on Philadelphus (Sedivy et al. 2008).


Buck M, Paiero SM, Marshall SA (2005) New records of native and introduced Aculeate Hymenoptera from Ontario, with keys to Eastern Canadian species of Cerceris (Crabronidae) and eastern Nearctic species of Chelostoma (Megachilidae). Journal of the Entomological Society of Ontario 136: 37-52.

Normandin É, Vereecken NJ, Buddle CM, Fournier V (2017) Taxonomic and functional trait diversity of wild bees in different urban settings. PeerJ 5: e3051.

Robertson C (1891) Descriptions of new species of North American bees. Transactions of the American Entomological Society 18(1): 49-66.

Webb DW (1980) Primary insect types in the Illinois Natural History Survey Collection, exclusinve of the Collemboa and Thysanoptera. Illinois Natural History Survey Bulletin 32(2): 55-191.

Sedivy C, Praz CJ, Müller A, Widmer A, Dorn S (2008) Patterns of host-plant choice in bees of the genus Chelostoma: the constraint hypothesis of host-range evolution in bees. Evolution 62(10): 2487-2507.

Rozen JG, Go HH (2015) Descriptions of the egg and mature larva of the bee Chelostoma (Prochelostoma) philadelphi with additional notes on nesting biology (Hymenoptera: Megachilidae: Megachilinae: Osmiini). American Museum Novitates 3844: 1-7.

Sociality: Solitary
Nesting: Cavity Renter
Pollen Specialization: Narrow Oligolecty
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Philadelphus inodorus

Distribution: Ontario, Quebec
Ecozone: Mixwood Plains