Bombus (Pyrobombus) perplexus Cresson, 1863

Figs 1–2, 39‒50

B. [ombus] perplexus Cresson, 1863: 91 . Type not seen (believed lost, Cresson 1916), but identity not in doubt.

B. [ombus] Hudsonicus Cresson, 1863: 92. Type not seen (believed lost, Cresson 1916), but identity not in doubt.

Diagnosis

Female

Distinguished by the combination: clypeus in the centre with widely scattered large punctures with more numerous small punctures between them; ocello-ocular area along the inner eye margin with a broad band of sparse medium and small punctures; scutum with the hair usually yellow; T5 hair usually entirely black, but sometimes white or cream posteriorly and occasionally throughout; T5 posteriorly in the middle anterior to the smooth posterior margin with a broad band of large punctures extending for at least a quarter of the length of the tergum.

Male

Distinguished by the combination: hair variable, from the thorax and metasomal T1‒6 yellow, to T1‒2 yellow and T3‒6 black

Material examined

Material sequenced or examined

CANADA • 1 ♀ (queen); Ontario, Toronto High Park; 43.6460° N, 79.4679° W; alt 95 m; 11 May 1983; P. Williams leg.; PW • 1 ♀ (queen); Nova Scotia, Kings County; 45.1298° N, 64.7383° W; 13 Jun. 2003; C. Sheffield leg.; BOLD-Bee25-3; PW .

USA • 1 ♀ (worker); Kentucky, Camp Ernst; 38.9974° N, 84.7141° W; alt. 246 m; 1 Jun. 2006; P. Williams leg.; BOLD-1550H03; PW • 1 ♂; New York, Catskill Mts Highway 17; 41.650° N, 74.683° W; 28 Jul. 2004; P. Williams leg.; PW .

Other material sequenced

BOLD: 3742D01, 3742D02, 3742D10, Bee25-2, 03-BC-0414, 6706C01, 6717D10-YT, BIOUG45105A07, 08BBHYM-0560.

Distribution

Widespread in boreal North America in the north (from Alaska to Quebec) and extending southwards along the Appalachian mountains (Williams et al. 2014), at elevations of 0‒1852 m (L. Richardson, pers. comm.).