HENRY J. FRANKLIN. 309 



besides a considerable number of cells with partially devel- 

 oped larvae. The nest was taken July 15, 1904. The workers 

 of this species are very waspish and, next to those of B. 

 vagans F. Sm., are the most ready to use their stings of all 

 those with which I have had any experience. 



This species has its closest ally in B. impatiens. 



The males of this species occasionally sport by having one 

 or more of the apical segments of the abdomen partially or 

 wholly covered with yellow pile as in the case of the type 

 male, which had the fourth segment covered with black and 

 yellow pile mixed. This sporting tendency of the males is 

 paralleled in the queens as I have already shown under the 

 topic " Freak Specimens." 



Bombus (Bombus) impatiens Cress. 

 ? Apis griseo-collis De Geer, Mem. Ins., Ill, 1773, p. 576, PI. 28, figs. 

 13-14. 

 Olivier, Encycl. Meth. Ins., IV, 1789, p. 64. 

 '* virginicus Olivier, Encycl. Meth. Ins., IV, 1789, p. 66. 

 Bombus virginicus Fabricius, Syst. Piez., 1804, p. 346. 

 Bremus " Jurine, Nouv. Meth. class. Hymen., 1807, p. 260, 



9. 

 1 Bombus impatiens Harris, Catal. Insects Mass., 1835, p. 70 (nom. 

 nud.). 

 " virginicus Harris, Catal. Insects Mass., 1835, p. 70 (Catal.). 

 St. Fargo, Hymenopteres, I, 1836, p. 470. 

 Kirby, Faun. Bor.-Amer., IV, 1837, p. 274. 

 " " Smith, Brit. Mus. Cat. Hym., II, 1854, p. 398. 



Greene, Ann. Lye. Nat. Hist. N. Y., VII, 1860, 

 p. 170. 

 " Cresson, Proc. Ent. Soc. Phila., II, 1863, p. 87, 



9 S (not the c?). 

 " impatiens Cresson, Proc. Ent. Soc. Phila., II, 1863, p. 90, 



n. 2, c?. 

 " virginicus Cresson, Proc. Ent. Soc. Phila., 1863, p. 166, 

 9 S c?. 

 " Putnam, Proc. Essex Instit., IV, 1864, p. 101. 



" " Packard, Proc. Essex Instit., IV, 1864, p. 113, 



9 S d^. 

 " " Cresson, Proc. Davenp. Acad. Nat. Sci., I, 1876, 



p. 210. 

 •' " Bethune. (Reprint, W. Kirby's Faun. Bor.- 



Amer.), Can. Ent., X, 1878, p. 118. 



TRANS. AM. ENT. SOC, XXXVIII. 



