Anthidiellum notatum (Latreille, 1809)

Anthidium notatum Latreille, 1809: 48, 1809: 231 [♂].

     Holotype ♂. USA, Carolina [Muséum d'histoire naturelle, Paris?]

Taxonomic Notes: The ♀ described by Cresson (1864: 376).

Based on distinct differences in the cytochrome c oxidase I (COI) gene that resulted in two distinct Barcode Index Numbers (BINs) (see Sheffield et al. 2017), Sheffield and Heron (2019) agreed with Urban (2001) and considered A. notatum a separate species from the western A. robertsoni (Cockerell).

Schwarz’s (1926: 18-19) description of ♀s and ♂s of A. notatum var. rufimaculatum from Florida noted that it was much redder and considerably larger than the more northern typical form. It was later recognized as a valid subspecies of A. notatum by Schwarz (1928: 395), and subsequently by Michener (1951: 1146), Mitchell (1962: 21), and Hurd (1979: 1999), and is so to the present [but not included here]. In her treatment of the genus Loyolanthidium Urban, Urban (2001: 66) did not recognize the subspecies of A. notatum recognized by other authors. Her mention of A. rufimaculatum Schwarz (incorrectly cited as being described in 1928) was seemingly as a valid species (Urban 2001: 67) and indicated that she had not examine any of the type material of A. rufimaculatum Schwarz under the her treatment of Anthidiellum toltecum (Cresson), not A. notatum.

DNA Barcode Index Number (BIN): BOLD:AAD2040

Other BINs attributed to A. notatum in BOLD (BOLD:AEG6631, BOLD:AED7891) suggest that there could be multiple species in a A. notatum complex, and that previously recognized subspecies could be considered species.

Biology: Turell (1976) described the mating behaviour, indicating that mating typically occurs in the vicinity of flowers used by the female.

Distribution in Canada: Romankova 2003 [ON]; Grixti and Packer 2006 [ON]; Packer et al. 2007 [ON]; Discover Life [ON, QC].

The record of this species by Criddle et al. 1924 [from BC, as Dianthidium notatum Latr.] is in reference to A. robertsoni (Cockerell).