Nomada depressa Cresson, 1863

Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), Zootaxa 5586 (1), pp. 1-138 : 93

Nomada depressa Cresson, 1863 (ruficornis group)

Large-patched Nomad

= Nomada hoodiana Cockerell, 1903 , unpublished synonymy of Snelling; = Nomada depressicauda Cockerell, 1908 ; = Nomada carinicauda Cockerell, 1921 , unpublished synonymy of Snelling; = Nomada media Mitchell, 1962 , unpublished synonymy of Snelling.

Notes: Like very many Nomada species this one is surely under-recorded regionally, especially males. As there seem to be a reasonable number of recent (1990s–present) records in collections, examined from pertinent “northern” sites in the region, including Connecticut (n = 11), it is hard to endorse an assessment of the species as “declining” in New Hampshire (Matthiasson & Rehan 2019). We are unable to reliably separate N. skinneri Cockerell , described as “belonging to the group of N. depressa ” by its author, from N. depressa , so we regard a nontype Connecticut report of the former as hypothetical (see below). A voucher from Tuell et al. (2009) from Ottawa County Michigan (4.5 miles NW of Holland, 21 Apr 2005, coll. J. K. Tuell et al.) initially identified as a Nomada cf. depressa proved upon reexamination to be a N. sobrina male instead. It has a yellow pronotum (see image in Gibbs et al. 2017a). As discussed above, grouping of this species with a Nomada (Heminomada) species by Odanaka et al. (2022) contrasts with its placement in Nomada (Nomada) by Hurd (1979).