Aug. 28, 1916 Thersilochus Conotracheli 855 



LITERATURE CITED 



(1) Riley, C. V. 



1871. The Porizon curculio parasite. In 3rd Ann. Rpt. State Ent. Mo., 1870, 



p. 28, fig. 9. 



Porizon conotracheli: Original description and first record of parasitism; reared from 

 material from New Jersey. 



(2) 



1872. Einige unserer schadlicheren Insekten. 35 p., 12 fig. St. Louis. 



(3) Gott, B. 



1880. The plum curculio. In Ann. Rpt. Ent. Soc. Ontario, 1879, P- 84-88, fig. 

 55-57- 



Not found in Ontario. 



(4) Riley, C. V., and Howard, L. O. 



1889. The plum curculio. In U. S. Com. Agr. Rpt., 18S8, p. 57-77. 



Refers species to Thersilochus. Brief life-history. Nearly as abundant in certain 

 sections as Sigalphus. 



(5) 



1890. Some of the bred Hymenoptera in the national collection. In Insect 



Life, v. 3, p. 156. 



Repetition of original breeding record from N. J. 



(6) Harrington, W. H. 



1891. Hymenoptera parasitica, In Ann. Rpt. Ent. Soc. Ontario, 1890, p. 64-73, 



fig. 21-42. 

 Mention as parasite of plum curculio. 



(7) Johnson, F., and Girault, A. A. 



1906. The plum curculio. U. S. Dept. Agr. Bur. Ent. Circ. 73, 10 p., 5 fig. 



Less abundant than Sigalphus. Not met with by authors outside of New York 

 State. 



(8) Quaintance, A. L., and Jenne, E. L. 



1912. The plum curculio. U. S. Dept. Agr. Bur. Ent. Bui. 103, 250 p., 20 pi., 



36 fig. 



Resume of previously published accounts, with data on abundance in N. Y., and 

 emergence of adults in spring in N. Y. and Pa. Records specimens from N. Y., Conn., 

 111., Mo., and Kans. 



(9) TlMBERLAKE, P. H. 



1912. Astudy of the biology of Limnerium validum (Cresson). U. S. Dept. Agr. 

 Bur. Ent. [Bui.] 19, pt. 5, Tech. Ser., p. 71-92, fig. 32-41. 



