494 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol 4. 



briickivorus Cwfd. The last is represented by a single female speci- 

 men, found dead in the cell of its host in a seed. The Horismenus is, 

 so far as is known, peculiar to this host. It breeds singly as a primary 

 parasite. Both Horismenus and Ceramhijcobius hibernate within 

 the pods of Cercis in the immature condition, specimens of the former 

 having emerged in our cages as late as March 30 and of the latter 

 March 5. 



Bruchus discoideus Say, Journ. Acad., Ser. 1, Vol. Ill, p. 307. 

 Three males and one female of this species, sent me by Mr. R. W. 

 Dawson, Lincoln, Neb., are labeled "Working on Ipomoea leptophylla, 

 Glen, Sioux Co., Neb., 4000 ft." 



Bruchus bivulneratus Horn, Trans. Am. Ent. Soc, 1873, p. 325. 

 This species, recorded by Riley and Howard (Ins. Life, V, 165) 

 as breeding in the pods of Cassia marilandica, was found by the writer 

 at Alexandria, La., in the pods of an undetermined plant (probably 

 Cassia sp.) These pods were collected on March 17, 1908, and were 

 of the preceding season's crop. Examination of some of the material 

 disclosed fourteen individuals, ten adults, one teneral adult, and three 

 pupse. From the pods examined four individuals had already emerged. 

 From another lot of pods collected at the same spot in the following 

 January, no adults had emerged at the time of collection, and the 

 first one did not appear until March 8. The last to emerge from this 

 lot appeared March 22, and the latest adult from the first lot emerged 

 on March 31. The species is, at least on this host plant, single brooded 

 and hibernates in the immature condition. The place of collection 

 of this material at Alexandria is the only locality in which the host 

 plant has ever been found by the writer, and B. bivulneratus has been 

 but rarely collected by us in the field. This indicates that it is prob- 

 ably confined in its attack to this plant. 



Our records include only one parasite of this species. This is 

 Horismenus sp., which breeds singly as a primary parasite. Like 

 its host it hibernates in the pods in the immature condition, probably 

 as a pupa, since all individuals observed in material examined were 

 in this stage. But one specimen was reared from the first lot of pods. 

 This became adult on April 4. From the second lot six specimens 

 were reared, the first on February 6 and the last two on March 22. 

 Bruchus ulkei Horn, Trans. Am. Ent. Soc, 1873, p. 324. 

 A single specimen of this species sent me by Mr. R. W. Dawson, 

 Lincoln, Neb., was bred from Parkinsonia aculeata, September 9, 1910, 

 from the campus of the University of Arizona. 



Bruchus sallaei Sharp, Biol. Cent. Amer., V, p. 475. 

 This species was of especial interest on account of its being the host 

 of many of the parasites of the boll weevil. Consequently many lots 



