394 AMERICAN HYMENOPTERA. 



Bombus californinis Cresson, Trans. Amer. Ent. Soc, VII, 1879, p 

 230. (Catal.). 

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

 (Catal.). 

 Apathus? californica Cresson, Syn. Hym. No. Amer., 1887, p. 307 



(Catal.). 

 Bombus californicus Cresson, Syn. Hym. No. Amer., 1887, p. 307 

 (pars.) (Catal.). 

 " ^M(5w« Cresson, Syn. Hym. No. Amer., 1887, p. 307. (Catal.) 

 " consanguineus Ant. Handlirsch, Ann. naturh. Hofmus. Wien. 



Ill, 1888, p. 239, 9 a cf. 

 " californicus Ant. Handlirsch, Ann. naturh. Hofmus. Wien. 

 Ill, 1888, p. 243, 9 (not the S and c?). 

 Dalla Torre, Cat. Hym., X, 1896, p. 513 (pars.) 

 " consanguifieus Dalla Torre, Cat. Hym., X, 1896, p. 514. 

 dubius Dalla Torre, Cat. Hym,, X, 1896, p. 518. 

 Psithyrus californicus Dalla Torre, Cat. Hym., X, 1896, p. 566 



(Catal.). 

 Bombus " Cockerell, Cat. Abej. de Mex., 1899, p. 19 



(Catal.). 

 " " Fowler, Rep't Cal. Agr'l Exp. Sta., 1902, Part 



II, p. 317. 

 dubius Titus, Can. Ent., XXXIV, 1902, p. 40. 

 " sp. Jordan and Heath, Animal Forms, 1902, p. 130, fig. 80, 



^. 

 " neglectulus Ashmead, Proc. Wash. Acad. Sci., IV, May 29, 

 1902, p. 124, 9 8 . 

 Ashmead, Hym. of Alaska, 1904, p. 130, 9 S . 

 " californicus Howard, Insect Book, 1904, Plate II, fig. 15, 9 . 

 Viereck, Can. Ent., XXXVI, April, 1904, pp. 98 



and 99. 

 Cockerell, Bull. So. Cal. Ac. Sci., Ill, June, 1904, 

 p. 89. 

 Psithyrus californicus Cockerell, Bull. So. Cal. Ac. Sci., Ill, June, 



1904, p. 90. 

 Bombus californicus Kellogg, American Insects, 1905, p. 518, fig. 722, 

 and p. 519, and Plate XII, fig. 10, 9 . 

 " dubius Cockerell, Bull. Amer. Mus. Nat. Hist., XXII, Article 



XXV, p. 453, n. 113, Dec. 17, 1906. 

 " californicus Fletcher and Gibson, Can. Ent. Rec. (Ann. 

 Rep't Ent. Soc. Ont.), 1907, p. 16. 

 Fletcher and Gibson, ibid., 1908, p. 111. 

 " " Cockerell, Can. Ent., XLII, 1910, p. 25. 



Davidson, Bull. So. Cal. Acad. Sci., X, 1911, 

 p. 66. 



