HYMENOPTERA. 21 
Fernatp, H. T.—The digger wasps of North America and the West 
Indies, belonging to the subfamily Chlorionine. <Proc. U. S. 
Nat. Mus., xxx1, pp. 291-423, pls. 5, 1906. 
Metanper, A. L.—Synopsis of North American species of Am- 
mophila. <Psyche, 1903, pp. 156-163. 
Smiru, H. S.—The Sphegoidea of Nebraska. <Univ. Studies, vor 
(4), pp. 88, pl. 1, 1908. 
Includes species of the other fossorial families. 
BEMBECID2. 
Pacxarp, A. S.—[See work cited under Larride. | 
Parron, W. H.—The American Bembecide: Tribe Stizini. < Bul. 
U.S. Geol. and Geog. Surv., v, No. 3, pp. 341-347, 1879. 
Fox, W. J.—Synopsis of the Stizini of Boreal America. <Proc. 
Acad. Nat. Sci. Phila., 1895, pp. 264-268. 
Synopsis of the Bembicini of Boreal America. <Proc. Acad. 
Nat. Sci. Phila., 1895, pp. 351-874. 
Hanpuirsci, A.—Monographie der mit Nysson und Bembex ver- 
wandten Grabwespen. 7 parts. <Sitzber. k. Akad. Wissensch., 
Wien, 1887-1893, pp. 150, pls. 23. 
LARRIDJE. 
Packarp, A. S.—Revision of the Fossorial Hymenoptera of North 
America. I. Crabronide and Nyssonide. <Proc. Ent. Soe. 
Phila., v1, pp. 89-114, 353-444, 1866. 
This work includes revisions of the following families: Larridz, Bem- 
becidz, Philanthide, Mimeside, Mellinidse, Pemphredonide, and 
Crabronidee. 
Parron, W. H.—List of North American Larride. <Proc. Boston 
Soc. Nat. Hist., xx, pp. 385-397, 1880. 
Table of genera; list of, and notes on, species. 
Fox, W. J—Monograph of the North American species of Tachytes. 
=< frans. Amer. Ent. Soc., x1x, 1892, pp. 234-952, 
The North American Larride. <Proc. Acad. Nat. Sci. 
Phila., 1894, pp. 467-551. 
Synopsis of the North American species of Astatus, Latr. 
<Can. Ent., 1892, pp. 232-235. 
AsHmrap, W. H.—Two new genera of sand wasps. <Ent. News, 
1898, pp. 187-189. 
Table of Miscophinus. 
