HENRY J. FRANKLIN. 



303 



? ? Bombus hyperboreus F. Moravitz, Bull. Ac. Sci. St. Petersbourg, 



XXVII, 1881, 231, n. 16, 9 <?. 

 Schmiedeknecht, Apid. Europ.,I, P. 4, 1882, 



p. 276, 9 S , 290, c? , and 307, n. 6, 9 S c? . 

 Cresson, Syn. Hym. No. Amer., 1887, p. 308 



(Catal.). 

 Fox, Proc. Ac. Nat. Sci. Phila., 1892, p. 135. 

 Aurivillius, Bih. Svensk. Vet.— Akad. Handl., 



XV, 1890, P. 4, p. 27. 

 Friese and Wagner, Zoolog. Jahrb. Suppl. 7, 



Fetsch. Weismann, 1904, T. 30, F. 1, 9 . 

 Cockerell, Can. Ent., XLI, Jan., 1909, p. 37. 

 H. Friese, Ann. du Mus. Zool. de I'Acad. 



Imp. des Sci. de St. Petersb., 1904, Tome 



IX, n. 4. 

 arcticus H. Friese, ibid. 



Types. — Probably in the collection of the British Museum, 

 but their identity may be lost as Col. Bingham was unable 

 to locate them definitely for me. 



Head black ; anterior part of dorsum of thorax and scute litem covered 

 with light yellow pile ; pleura dark and a broad black interalar band 

 present ; dorsum of abdomen typically with the two basal segments yel- 

 low and the remainder black. Malar space long. Pile long and fine. 



Queen. Head. — Elongate triangular in outline and bearing only 

 black pile ; labrum as in B. affinis 9 ; malar space about one-half as 

 long as the eye ; clypeus moderately punctate over its entire surface ; 

 fifth antennal segment about equalling the third in length, fourth seg- 

 ment shorter. 



Thorax. — Anterior part of dorsum and scutellum covered with pale 

 yellow pile ; pleura, except for a little just below the bases of the wings, 

 bearing dark pile ; a broad and distinct black band between the bases 

 of the wings. 



Abdomen. — First two dorsal segments covered with pale yellow pile, 

 the remaining dorsal segments black ; venter black. Hypopygium 

 without median carina. 



Wings. — Strongly stained with brown, a trifle lighter than those of 

 the queen of B. perplexus Cress. 



Legs. — Coxae, trochanters, femora, fore and middle tibiae and corbi- 

 cular fringes black. 



Worker. — Much like the queen in all respects except size. 



Male. Head. — Face and sides behind the eyes black ; occiput largely 

 covered with pale yellow pile. Malar space fully one-half the length 

 of the eye. Fifth antennal segment much longer than either the third 

 or the fourth, these two segments being subequal ; apical segment the 

 shortest of all except the pedicel. 



TRANS. AM. ENT. SOC. , XXXVIII. 



