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Chelostoma campanularum (Kirby, 1802)


Scientific Name: Chelostoma campanularum (Kirby, 1802)

Common Name: Harebell Carpenter Bee


Apis florisomnis minima Christ, 1791: 197. Preoccupied, not Apis minima Poda, 1761. Synonymy by Schwarz et al. (1996: 115).

     Type. The original type material from Germany is not known.

Apis campanularum Kirby, 1802: 256 [♀, ♂].

     Lectotype ♀, designated by Tkalcu (1967: 94). UNITED KINGDOM [BMNH B.M. TYPE HYM no. 17a2976].


Taxonomic Notes: This is an introduced species in North American, and the only representative of the subgenus Foveosmia Warncke; North American members included in this subgenus by Michener (2007) were placed in Neochelostoma Engel and Griswold, 2019. Eickwork (1981) recorded it for the first time from North America (New York State).

DNA Barcode Index Number (BIN): BOLD:AAB1123

Biology: This species is conidered oligolectic on Campanula (Campanulaceae), though will possibly visit related plant genera (Amiet et al. 2004; Sedivy et al. 2008; Westrich, 1989). It nests in pre-existing cavities, including old insect burrows in dead wood and hollow plant stems. Its nest material includes mud for nest cell partitions and the end plug; small pebbles are included to the latter.

Distribution in Canada: Buck et al. 2006 [ON]; Normandin et al. 2017 [QC]; Rowe 2017 [ON].


Michener CD (2007) The Bees of the World. 2nd Edition. Johns Hopkins University Press, Baltimore. xvi + 953 pp.

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.

Kirby W (1802) Monographia Apum Angliae; or, an attempt to divide into their natural genera and families, such species of the Linnean genus Apis as have been discovered in England: with descriptions and observations. 2. J. Raw, Ipswich, 388 pp.

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

Christ JL (1791) Naturgeschichte, Klassification und Nomenclatur der Insekten vom Bienen, Wespen und Ameisengeschlecht. Frankfurt, Main, Herrmann, 535 pp.

Tkalcu B (1967) Bemerkungen zur Taxonomie einiger paläarktischer Arten der Familie Megachilidae (Hymenoptera, Apoidea). Acta Entomologica Bohemoslovaca (Praha) 64: 91-104.

Schwarz M, Gusenleitner F, Westrich P, Dathe HH (1996) Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna (Ansfelden) 8 (Supplement): 1–398.

Engel MS, Griswold T (2019) On the classifcation of North American Chelostoma (Hymenoptera: Megachilidae). Journal of Melittology 90: 1-6.

Eickwort GC (1981) Two European species of Chelostoma established in New York State (Hymenoptera: Megachilidae). Psyche 87(3-4): 315-323.

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

Crop Preference: Not Available
Non Crop Preference: Campanula sp.

Distribution: Ontario
Ecozone: Mixwood Plains