LITERATURE CITED. 
(1) COMSTOCK, J. H. 
1880. Report of the Entomologist for 1879. In Rept. IT. S. Commis- 
sioner of Agric, p. 185-373. 
(2) ASHMEAD, W. H. 
1894. Descriptions of new parasitic Hymenoptera. In Trans. Amer. 
Ent. Soc, v. 21, p. 318-344. 
(3) Hopkins, A. D. 
1896. Some notes on observations in West Virginia on farm, garden, 
and fruit insects. In Proc. 8th Ann. Meeting of Assn. Econ. 
Ent. U. S. Dept. Agr., Div. Ent., Bui. 6, n. s., p. 71-74. 
(4) 
L898. Some notes on observations in West Virginia. In Proc. 10th Ann. 
Meeting Assn. Econ. Ent. U. S. Dept. Agr., Div. Ent., Bui. 17, 
n. s., p. 44-49. 
(5) Titus, E. S. G. 
1904. Some preliminary notes on the clover-seed chalcis fly. In Some 
Miscell. Results of the Work of the Div. Ent. U. S. Dept. Agr., 
Div. Ent., Bui. 44, p. 77-80. 
(6) Gahan, A. B. 
1914. New Hymenoptera from North American. In Proc. U. S. Nat. 
Mus., v. 46, p. 431-443, pi. 39. 
(7) 
1915. Descriptions of new genera and species, with notes on parasitic 
Hymenoptera. In Proc. U. S. Nat. Mus., v. 48, p. 163. 
(8) 
1917. Descriptions of some new parasitic Hymenoptera. In Proc. U. 
S. Nat. Mus., v. 53, p. 195-217. May 26. 
(9) Urbahns, T. D. 
1916. Life history of Habrocytus medicaginis, a recently described 
parasite of the chalcis fly in alfalfa seed. In TJ. S. Dept. Agr., 
Jour. Agr. Research, v. 7, no. 4, p. 147-154, pi. 4, 1 fig. 
(10) 
(11) 
1917. Tetrastichus bruchophagi, a recently described parasite of 
Bruchophagus funebris. In TJ. S. Dept. Agr., Jour. Agr. Re- 
search, v. 8, no. 7, p. 277-282, pi. 78. 
1919. Life-history observations on four recently described parasites 
of Bruchophagus funebris. In U. S. Dept. Agr., Jour. Agr. Re- 
search, v. 16. no. 6, pi. 165-174, pi. 22-23, 8 fig. 
20 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
10 CENTS PER COPY 
V 
