492 JOURNAL OF ECONOMIC ENTOMOLOGY (Vol. 4 



recorded by Schaeffer (1904) as occurring quite commonly in July 

 on Acacia flexicauUs { = Siderocarpus flexicaule), with the comment 

 that it undoubtedly breeds in the seed pods of this tree. Specimens 

 in the collection of the National Museum at Washington were reared 

 from the same plant, the so-called Texas ebony. A large series of 

 specimens have been reared by us from three lots of the Siderocarpus 

 pods. 



The first lot of material was collected by Mr. H. P. Atwater at 

 Corpus Christi, Texas, in November, 1903. Mr. J. D. Mitchell 

 subsequently found it at Harlingen, Texas, August 1, 1906. From 

 this lot the first adults emerged on August 16, and the last on Septem- 

 ber 11, giving, from the date of collection, a minimum of fifteen and 

 a maximum of forty-one days. 



The third lot of pods was collected by Mr. Mitchell at Victoria, 

 Texas, on July 26, 1907. The first adult emerged July 31 and the 

 last recorded on August 18. However, two months later, on October 

 18, the ])ods were examined and six living adults found still in the 

 seeds. This gives a maximum period in the seed of at least eighty- 

 four days. The species is apparently single brooded. 



From all three of the lots of material many specimens of Horis- 

 menus sp. were reared. This species is internally parasitic on the 

 larval Bruchus, leaving the body of its host and pupating in the cell. 

 Many individuals mature on a single host. Some of the records on 

 this point are as follows, one larva serving as the host of the number 

 of Horismenus given in each case: 10, 30, 33, 33, 34, 56, 64. In two 

 cases two parasitized larvae were found in the same seed and the 

 parasites counted together. One pair produced 53 parasites and 

 the other 132. This is the only parasite we have reared from this 

 Bruchus. 



Bruchus ochreolineatus Fall, Trans. Am. Ent. Soc. XXXVI, 

 No. 2, 1910, p. 186. 



This large species was found by the author t)reeding in the large, 

 distorted pods of a "chapparal" (probably Mimosa fragrans) in the 

 Chisos Mountains, Brewster County, Texas, in June, 1908, and in 

 September at Ballinger and Albany, Texas. 



In the Brewster County material it was parasitized by Glypto- 

 colastes bruchivorus Cwfd., and an undetermined chalcid. 



Bruchus quadridentatus Schaeffer, Mus. Brooklyn Inst. Arts and 

 Sci., Science Bui., Vol. 1, No. 10, 1907, p. 304-305. 



About forty specimens of what appear to be this species were reared 

 from pods of a plant called by the Mexicans "Tenaza." The author 

 has been unable to ascertain the scientific name of the plant. It is, 

 however, one of the many "chapparals" growing in the semiarid 



