240 UNIVERSITY OF COLORADO STUDIES 



A. ellisiae Cockerell, Ann. Mag. Nat. Hist., July, 1914, p. 9. Boulder (Mrs. M. D. 



Ellis). At flowers of Lepldium. 

 A. fernaldieUa V. and C, Proc. U.S. Nat. Mus., Vol. XL VIII (1914), p. 34. Florissant 



(S. A. Rohwer). 

 A. fulvihirta V. and C, t. c, p. 54. T. 1., six miles west of Fort Collins, miscellaneous 



sweeping, May 4, 1896 (C. P. Gillette). 

 A. (merriami var.?) fulvinigra V. and C, t. c, p. 42. Fort Collins (Gillette). 

 A. interrogationis V. and C, t. c, p. 35. Colorado (Baker). 

 A. laminibucca V. and C, t. c, p. 37. Topaz Butte, Colo. (S. A. Rohwer). 

 A. martialis V. and C, t. c, p. 5. Boulder (G. M. Hite). 

 A. moesticolor V. and C, t. c, p. 31. Long's Peak Inn, Colo. (T. and W. Cockerell). 



South Park. 

 A. montrosensis V. and C, t. c, p. 48. Montrose (Gillette). 

 A. nigritarsis V. and C, t. c, p. 53. Boulder, May 27 (S. A. Rohwer). 

 A. padoucorum V. and C, t. c, p. 38. Evergreen, Colo. (Dunning). 

 A. paenefulva V. and C, t. c, p. 51. Colorado. 

 fA. percontusa Cockerell, Proc. Acad. Nat. Set. Phila. for 1914, p. 640. Florissant 



(Wickham). 



A. polygonl V. and C, Proc. U.S. Nat. Mils., Vol. XLVIII (1914), p. 18. Florissant 

 (Cockerell). 



A. profundiformls V. and C, t. c, p. 8. Fort Collins (Gillette). 



A. purpurina V. and C, t. c, p. 16. Colorado. 



A. pyrrhacita coloradensis V. and C, t. c, p. 39. Berkeley, Colo. 



A. ribifloris V. and C, t. c, p. 32. Florissant (S. A. Rohwer). 



A. salicicola V. and C, t. c, p. 52. Halfway House, Pike's Peak (Cockerell). At 



flowers of Salix. 

 A. salicineUina V. and C, t. c, p. 17. Clear Creek, Colo. 

 A. sphecodiniformis V. and C, t. c, p. 6. Platte Canon (Baker). 

 A. subaustraliformis V. and C, t. c, p. 28. T. 1., Boulder, in canyon near town, May 



23, 1896 (C. P. GiUette). 

 A. submariae V. and C, t. c, p. 4. T. 1. in Kansas; a doubtful variety (? female of 



martialis) from Clear Creek, Colo. (Baker). 

 A. tacitula grossulariae V. and C, t. c, p. 9. Topaz Butte, Colo. (S. A. Rohwer). 

 A. titusi V. and C, t. c, p. 12. Fort Collins (Titus). 

 A. vestali Cockerell, Ann. Mag. Nat. Hist., January, 1913, p. 64. Five miles east of 



Boulder (A. G. Vestal). At flowers of Viola. 

 A. washingtoni manitouensis V. and C, Proc. U.S. Nat. Mus., Vol. XLVIII (1914), p. 31. 



Manitou (T. and W. Cockerell). 

 Halictus crassiceps M. D. Ellis, Enlont. News, Vol. XXV (1914), p. 103. T. 1. in New 



Mexico, but also (not quite typical) from Colorado Springs and Boulder (W. P. 



Cockerell). 



