18 

 5. BErcHi's PKi'i-xixus. 



This sjjecies has been bred experimentallv from the follow- 

 ing additional hosts: Cassia siarnea, Samanea. saman, Acacia 

 decurrens, Sesbania coccinea. and Cassia grand is. 



Breeding this from the seeds of the monkeypod (Samanca 

 saman) is of interest since we have no local record of this spe- 

 cies being attacked by Bruchidae, the seeds being protected bv 

 the chambered pods with a gummy or syrupy content. 



The seeds of Cassia nodosa have a copious albumen and the 

 cotyledons reach the seed coat only along their edges. When 

 the eggs are laid immediately over the cotyledons the larvae 

 are able to penetrate into them and develop. When they are 

 placed over the albumen the larvae are unable to penetrate this 

 and perish. 



I have retained a lot of infested seeds of Sesbania sesban 

 in which this species was breeding for more than a year and 

 the generations have followed one another imtil the seed are 

 all practically destroyed. There is then no doubt that the 

 species can maintain itself in storage indefinitely. 



6. Bruchus quadrimaculatus. 



This species was observed on Maui attacking cowpeas in the 

 field. It is a most serious enemy of the cowpea and pigeon 

 peas in storage but does not appear to attack the latter in the 

 field on Maui. 



7. CARYOBOKrS GO X AGRA. 



A larva of this species successfully completed its growtli 

 during February, 1918, in a pod of Cassia nodosa by proceed- 

 ing from one withered undeveloped seed to another. 



8. The Two-Spotted Beax Weevil Identified. 



As was suggest-ed this species proves to be Spermopliagns 

 pectoralis Sharp according to the determination of Mr. 

 Schwarz. 



