26 WORKS ON NORTH AMERICAN ENTOMOLOGY. 
Lovett, J. H.—The Bumblebees of Southern Maine. <Ent. News, 
1907, pp. 195-200. _ 
The Colletide of Southern Maine. <Can. Ent., 1907, pp. 
363-365. 
and Cockerre.L, T. D. A.—The Bees of Maine. Sphecodide. 
< Psyche, 1907, pp. 101-110. 
List of American species. 
The Megachilide of Southern Maine. <Psyche, 1907, pp. 
15-21. 
The Halictidee of Southern Maine. < Psyche, 1908, pp. 32-40. 
The Nomadine and Epeoline bees of Southern Maine. 
< Psyche, 1905, pp. 39-42. . 
Rosertson, C.—Synopsis of Anthophila. <Can. Ent., 1904, pp. 
37-4. 
This and the following papers by Mr, Robertson treat of the Illinois 
bees. 
Synopsis of Sphecodine. <Ent. News, 1903, pp. 103-107. 
Synopsis of Euceride, Emphoride, and Anthophoride. 
<Trans. Amer. Ent. Soc., xxx1, pp. 865-372, 1905. 
Synopsis of Epeoline. <Can. Ent., 1903, pp. 284-288. 
Synopsis of Prosopis and Colletes, with supplementary notes 
and descriptions. <Can. Ent., 1904, pp. 273-278. . 
Synopsis of Nomadine. <Can. Ent., 1903, pp. 172-179. 
-——— Synopsis of Halictine. <Can. Ent., 1902, pp. 243-250. 
Synopsis of the Andrenine. <Trans. Amer. Ent. Soc., xxvm1, 
pp. 187-195, 1902. 
Synopsis of Megachilide and Bombine. <Trans. Amer. Ent. 
Soc., xx1x, pp. 163-178, 1903. 
Brues, C. T.—Studies of Texan Bees. <Ent. News, 1903, pp. 79-85. 
Tables of Texan Epeolus and Ceelioxys. 
Swenk, M. H., and Cocxrretn, T. D. A.—The bees of Nebraska. 
<Ent. News, 1907, pp. 51-58, 178-187, 293-300. 
CockrreLL, T. D. A.—The bees of Florissant, Colorado. <Bul. 
Amer. Mus. Nat. Hist., xxir, pp. 419-455, 1906. 
Table of genera near Heriades. 
The bees of the genus Nomada found in Colorado. <Bul. 94, 
Colo. Agr. Exp. Sta., pp. 69-85, 1904. 
Trrus, E. S. G.—Colorado Bombide. <Can. Ent., 1902, pp. 37-44. 
