Nomada imbricata Smith, 1854

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 : 94

Nomada imbricata Smith, 1854 (ruficornis group)

Imbricate Nomad

Notes: The identity of this and other relatives of Nomada luteola (included in subgenus Heminomada sensu Mitchell, 1962 ; Hurd, 1979) was highly confused prior to taxonomic studies by Schwarz & Gusenleitner (2004). It is now recognized to be a relatively numerous species across the region. Likely hosts in Connecticut include Andrena dunningi Cockerell and Andrena regularis Malloch (Gibbs et al. 2017a). This species has been found in habitats such as powerline ROW, coastal beaches and scrub, and agricultural land, with 39% of records coming from the Stewart B. McKinney National Wildlife Refuge in Westbrook (Middlesex County). Users of Discover Life identification keys should be aware that N. imbricata females from the Northeastern and North Central United States and Canada can have more extensively red head, scutum, and propodeum than do extensively yellow-marked mid-Atlantic specimens, so approaches to identification overly reliant on color may prove unreliable.