HENRY J. FRANKLIN. 277 



Bombus (Bonibus) afiinis Cress. 

 WBotnbus vagans Cresson, Proc. Ent. Soc. Phila., II, 1863, p. 91, n. 4, 

 9 (not the S and cf ). 

 " affinis Cresson, Proc. Ent. Soc. Phila., II, 1863, p. 103. 

 " vagans Packard, Proc. Essex Instit., IV, 1864, p. 115, 9 (not 

 the S and cf ), 

 affinis Packard, Proc. Essex Instit., IV, 1864, p. 118, S cf. 

 " " Provancher, Addit.-faun. Canada Hymen., 1888, p. 



339, n. 6, 9 cf . 

 " " Ant. Handlirsch, Ann. Naturh. Hofmus. Wien, III, 



1888, p. 229, 8 . 

 " " Cresson, Trans. Amer. Ent. Soc. Phila,, VII, 1879, p. 



230 (Catal.). 

 " " Cresson, Syn. Hym. No. Amer., 1887, p. 307. 



" " Dalla Torre, Cat. Hym., X, 1896, p. 504. 



" Titus, Can. Ent., XXXIV, 1902, p. 38. 



Howard, Insect Book, 1904, Plate II, fig. 6, cf . 

 " " Kellogg, American Insects, 1905, p. 519. 



Types. — Originally described from a single worker, from 

 Canada, which is in the collection of the American Entomo- 

 logical Society, and a single male from New York " (Coll. E. 

 Norton)," which I have not located. There are several 

 specimens of this species in the collection at Philadelphia, 

 but the one labelled in Cresson's handwriting is the one he 

 recognized as the type. The type specimens of the queen 

 (described by Cresson as B. vagans) are in the collection of 

 the American Entomological Society. 



Pile comparatively short and dense ; head black ; thorax for most part 

 covered with yellow pile ; workers and males usually with a distinct black 

 band between bases of wings ; abdomen, except first two segments above, 

 black ; malar space short. 



Queen. Head. — Rather broadly rounded for ^ow«6«i. When viewed 

 from in front, as a rule, bearing only black pile, sometimes with a very 

 slight admixture of yellow hairs with the black on the occiput. Labrum 

 with an elevated tubercle-like area, broadly excavated at the summit 

 and with rather sharply elevated border, on each side, with a shelf- 

 like projection connecting the middle point of the inner sides of the 

 two areas, this being broadly rounded in front and extending forward 

 in a plane lying at an acute angle with the general plane of the labrum ; 

 the surface below this projection and also above it, between the two 

 tubercle-like areas, strongly impressed ; distal portion bearing a con- 

 spicuous amount of ferruginous pile; translucent spots rather small, 

 invisible to naked eye, but easily visible with good hand lens. Malar 



TRANS. AM. ENT. SOC, XXXVIII. 



