30 
Journal of Agricultural Research 
Vol. II, No. i 
to offer very little assistance, and it is difficult under such circumstances 
to suggest measures that would be effective when there has been no oppor¬ 
tunity to put any of them into practice or to test their efficiency. 
With such a host of parasites as are listed in the preceding pages con¬ 
stantly on the watch we need not concern ourselves seriously about 
remedies so long as conditions continue as they npw are. In the event 
that a combination of circumstances should occur that would restrain 
the parasites and give free rein to their host, the blotch miner would 
undoubtedly prove a pest very difficult of control. 
This species seems to furnish an instance in which only the barrier of 
parasites stands between the farmer and what may easily become, tem¬ 
porarily at least, a very serious pest. 
LITERATURE CITED 
Aldrich, J. M. 
A catalogue of North American Diptera (or two-winged flies). In Smithsn. Misc. 
Collect., part of v. 46 (Smithsn. Inst. Pub. no. 1444). Washington, 1905. 
Ashmead, W. H. 
Descriptions of some unknown parasitic Hymenoptera in the collection of the 
Kansas State agricultural college, received from Prof. E. A. Popenoe. In 
Kans. State Agr. Col. Exp. Sta. [Manhattan], Bui. No. 3, Appendix, June, 
1888. 
"Hippocephalus, n. g.,” p. vii. 
"Pleurotropis iricincta, n. sp.,” Appendix, p. viii. 
Descriptions of new Braconidae in the collection of the U. S. National Museum. 
In Proc. U. S. Nat. Mus., v. 11, 1888, p. 611-671. 1889. 
"Braeon diastatae, n. sp.,” p. 617. 
Comstock, J. H. 
'Report of the Entomologist. In U. S. Comr. Agr. Rpt., 1880, p. 235-373, 2 4 pi. 
1881. 
" The com leaf miner. Diaslaia? n. sp. t ” p. 245-246. Probably A . parvicornis, 
COQUILLEJTT, D. W. 
On the habits of the Oscinidae and Agromyzidae, reared at the United States Depart¬ 
ment of Agriculture. In U. S. Dept. Agr., Bur. Ent., Bui., n. s., no. 10, p. 
70-79. 1898. 
' ‘ A gromyza neptis Loew, ” p. 78. 
Crawford, J. C. 
Descriptions of new Hymenoptera, No. 5. In Proc. U. S. Nat. Mus., v. 43, p. 163- 
188. 1912. 
“ Chrysocharisparksi, new species,” p. 173-174. 
" Closterocerus tridnetus Ashm.,” p. 175. 
"Derostenus punctiventris, new species,” p. 180. 
Diaulinus pulchripes, new species,” p. 184. 
“Diaulinus websteri , new species,” p. 184-185. 
" Notanisomorpha ainsliei, new species,” p. 185-186. 
Descriptions of new Hymenoptera, No. 7. In Proc. U. S. Nat. Mus., v. 45, p. 309- 
3 * 7 * I 9 I 3 * 
” Cirrospilus flavoviridis, new species,” p. 317. 
”Pleurotropis utahensis, new species,” p. 316. 
Fitch, Asa. 
Second report on the noxious, beneficial and other insects of the State of New 
York. In Trans. N. Y. State Agr. Soc., v. 15, 1855, p. 409-559. 1856. 
"The wheat mow fly, Agromyza fritici, new species,” p. 534“535* 
