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Calliopsis barri (Rozen, 1959)


Scientific Name: Calliopsis barri (Rozen, 1959)

Common Name: Barr\\\\\\\'s Banded Miner Bee


Nomadopsis (Macronomadopsis) barri Rozen, 1959: 256 [♂, ♀].

     Holotype ♂. USA, Idaho, Rexburg, 17 July 1956, alt. 4861 ft., by W.F. Barr, on Melilotus [University of Idaho].

Calliopsis (Nomadopsis) zebrata Sheffield et al. 2014: 449. Misidentification.


Taxonomic Notes: This species was first recorded from Canada (as C. zebrata Cresson, 1878) by Sheffield et al. (2014). Both species are very similar, and Rozen (1959) indicated that the specific status of C. barri might be questioned. Though described after the revision of the subgenus Nomadopsis Ashmead (Rozen 1958), C. barri shows consistent morphological variation that separates it from C. zebrata, in addition to having a distinct DNA barcode. 

DNA Barcode Index Number (BIN)BOLD:ACM5518

Diagnosis: Calliopsis barri is a member of the subgenus Nomadopsis Ashmead, characterized by a metasoma with pale maculations, in Canada shared only with C. australior Cockerell, 1897 and C. scitula scitula Cresson, 1878, the latter species recorded in Canada only from Western Interior Basin of BC. The large size (< 11 mm) of both sexes of C. barri will separate it from the smaller (< 8 mm) C. scitula and C. australior. Males of C. barri have an unmodified hind tarsi, while males of C. scitula and C. australior have a modified hind tarsi, especially tarsomere 1.

Though Rozen (1959: 256) indicates that males of C. barri have a small genal maculation just posterior to the mandibular condyle, this is not appanrent in material from Canada.

Distribution in Canada: Sheffield et al. 2014 [SK, as C. zebrata Cresson]

Extent of Occurrence (EOO) in Canada ( 721.6 km2

Approximate Global Extent of Occurrence (EOO) (  378,726.3 km2

Index of Area of Occupancy (IAO) in Canada ( 48 km2

Datasets Used: (21 June 2023) GBIF Occurrence Download 


Sheffield CS, Frier SD, Dumesh D (2014) The bees (Hymenoptera: Apoidea, Apiformes) of the Prairies Ecozone, with comparisons to other grasslands of Canada. In: Giberson DJ, Cárcamo HA (Eds) Arthropods of Canadian Grasslands (Volume 4): Biodiversity and Systematics Part 2. 4. Biological Survey of Canada, Ottawa, 479 pp. [ISBN 978-0-9689321-7-9].

Rozen JG (1958) Monographic study of the genus Nomadopsis Ashmead (Hymenoptera: Andrenidae). University of California Publications in Entomology 15: 1-202.

Rozen JG (1959) a new species of Nomadopsis and notes on some previously described ones. Proceedings of the Entomological Society of Washington 61(6): 255-259.

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

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

Distribution: Saskatchewan
Ecozone: Prairie

Distribution Map