500 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



however, probably parasitic on a lepidopterous larva, the adult of 

 which was not reared. 



Bruchus exiguus Horn, Trans. Am. Ent. Soc, 1873, p. 341. 



Riley and Howard (Ins. Life, V, 165) record the breeding of this 

 species from Amorpha fruticosa in Illinois and Washington, D. C. 

 The writer has found it infesting the seed pods of this plant in a 

 number of localities in Texas and Oklahoma. It is a continuous 

 breeder and specimens can be found in the pods at any season of the 

 year. Our notes are based on material collected by the author at 

 Dallas, Albany, Henrietta, and Bowie, Texas and Ada, Oklahoma, 

 and by Mr. J. A. Hyslop at Washington, D. C. 



Every lot of material which was kept over winter in the cages 

 continued to give forth adults well along into the following spring. 

 The first lot obtained was collected at Dallas, Texas, on September 

 12, 1907. It consisted entirely of the crop of the preceding season, 

 but was abundantly infested. Adults continued to issue from these 

 pods as late as October 10, when the material was thrown away. 

 At the time of collection the Amorpha bushes were in bloom, so 

 that the last adults reared emerged nearly a year after the first 

 infestation. 



This species is attacked by a number of hymenopterous parasites, 

 the following having emerged in our breeding cages: Horismenus 

 sp., Cerambycohius cyaniceps Ashm., Heterospilus prosopidis Vier., 

 Glyptocolastes bruchivorus Cwfd., Eurytoma sp., Microdontomerus 

 anthonomi Cwfd., Cerambycobius brevicaudus Cwfd., Catolaccus incertus 

 Ashm., and an undetermined Eupelmid, the female of which is wing- 

 less. The first five of these were bred abundantly. Of C. brevicaudus 

 only three specimens were reared, of M. anthonomi only two, and 

 of the Eupelmid only one pair, which were in copula when removed 

 from the breeding cage. 



Three of the species are known as parasites of the boll weevil: C 

 cyaniceps, M. anthonomi, and Eurytoma sp. 



Cerambycobius brevicaudus Cwfd. was described from specimens 

 reared from this host and is known only as a parasite of this host. 

 This is also the only known host of the Horismenus. 



The four principal parasites were reared from the material almost 

 continuously, many individuals hibernating in the pods in the cages. 

 All of the parasites reared breed singly as primary parasites of the 

 Bruchus. 



Some of the above records of parasites were published by Pierce 

 (1908b). The species mentioned by him as attacking B. exiguus are 

 Microdontomerus anthonomi Cwfd., Cerambycobius brevicaudus Cwfd., 



