HENRY J. FRANKLIN. 431 



Bombus (Bombias) niorrisoni Cress. 

 Bomdus morrzsont Cresson, Proc. Acad. Nat. Sci. Phila., 1878, p. 183, 

 9 S c?. 

 Cresson, Trans. Amer. Ent. Soc, VII, 1879, p. 230 

 (Catal.). 

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

 morrisonii Ant. Handlirsch, Ann. Naturh. Hofmus. Wien., 

 Ill, 1888, p. 245, 9 S cf . 

 Dalla Torre, Cat. Hym., X, 1896, p. 535. 

 morrisoni Cockerell, Bull. Sci. Lab. Den. Univ., XI, 1898, p. 

 71. 

 " Cockerell and Porter, Ann. and Magaz. Nat. Hist., 



Ser. 7, IV, 1899, p. 388. 

 morrisonii FowIqt , Rep't Cal. Agr'l Exp. Sta., 1902, Part II, 

 p. 317. 

 Titus, Can. Ent., XXXIV, 1902, pp. 37 and 39, 

 9 S c?. 

 perplexusy Titus, Can. Ent., XXXIV, 1902, pp. 37 and 39, cf. 

 morrisonii YieTeck, Can. Ent., XXXVI, April, 1904, p. 98. 



Howard, Insect Book, 1904, Plate III, fig. 36, 9 . 

 morrisoni Cockerell, Trans. Amer. Ent. Soc, XXXII, Nov., 

 1906, p. 313. 

 " " Cockerell, Bull. Amer. Mus. Nat. Hist., XXII, Arti- 



cle XXV, Dec. 17, 1906, p. 453, n. 116. 

 Bombias " Swenk, Ent. News, XVIII, July, 1907, p. 295, n. 5. 



Bombus " Cockerell, Univ. Colo. Studies, IV, 1907, p. 258. 



" morrisonii Davidson, Bull. So. Cal. Acad. Sci., X, 1911, p. 66. 



Types. — Described from numerous specimens from Colo- 

 rado, now in the collection of the American Entomological 

 Society. 



Pile short, rather coarse and dense. Dorsum of thorax covered with 

 yellow pile; pleura of the females mostly, and of the males largely, 

 covered with black hair. Anterior part of dorsum, of abdomen yellow 

 and apical part black. Females with venter and legs dark. Wings 

 of queens very dark. A handsom,e species. 



Queen. Head. — Comparatively wide for its length. Face entirely 

 dark ; occiput with a triangular patch of yellow pile, the hind part of 

 this patch usually extending to the sides of the head ; cheeks dark. 

 Labrum with tubercle-like areas having their margins rounded and 

 summits somewhat concaved ; shelf-like projection rather wide and 

 prominent ; translucent areas faintly visible to the naked eye. Malar 

 space shorter than its width at the apex, between one- fifth and one- 

 sixth as long as the eye. Ocelli placed distinctly below the supra- 

 orbital line. Flagellum of antenna somewhat less than twice as long 



TRANS. AM. ENT, SOC, XXXVIII. 



