403 



notum of plenoculoides as carinate, which certainly does not 

 apply to the present species. 



Described from a single female collected at Berkeley, Cal- 

 ifornia, May 12, 1912 (Bridwell). Type in author's col- 

 lection. 



Notes on the Bruchidae (Coleoptera) and their Parasites in 

 the Hawaiian Islands, 3rd Paper. 



BY JOHIV COLBURN BRIDWELL. 



Bruchus prosopis Leconte. 



This species has been increasingly nunierons and destruc- 

 tive in its attacks upon the seeds of Prosopis jidiflora. This 

 condition led to the problem being taken up by the Union 

 Feed Co. of Honolulu, M'ho made possible the continuance 

 of investigation on the weevil injury to the algaroba beans. 

 An economic report upon these injuries was submitted to Mr. 

 F. W, Mcfarlane, the president of this company, on Decem- 

 ber 24, 1919, and this is soon to be printed in a slightly 

 altered form in the Hawaiian Sugar Planters' Record. On 

 Feb. 1, 1920, these investigation were taken up by the Bureau 

 o{ Entomology of the U. S. Department of Agriculture, and 

 these notes are designed to bring up my records regarding the 

 Bruchids to that date. 



The attack by this species upon the young pods begins 

 soon after they are set, when the seed is very small and the 

 whole pod is only about one-eighth of an inch in thickness. 

 The eggs are laid singly or in small nuisses of two or three, 

 or perhaps more, cemented lightly to the pod. 



The puncture made by the hatching larva results in a 

 copious exudation of gum which is at first clear but later 

 becomes brownish. This seals the entrance hole and often 

 <lislodges the egg mass so that the other larvae are unable 

 to enter the pod. 



The eggs of this species being usually laid at a time 



Proc. Haw. Entoni. Soc, IV, No. 2, June, 1920. 



