40.3 



While the observations have not been carried ont to en- 

 able us to state with (exactness the time required for the de- 

 velopment of Bnicluts prosopis in the o'reen pods, the indi- 

 cations are that the period is ab(Hit four to six weeks fi'om 

 ovipositioh to the emeriience of the adult uixtu the pod.» In 

 any case the emergence from the pod takes place soon after 

 the ripe j)od falls to the ground or even before, some even 

 while the pod is still gi-een. lu any case all the injury from 

 the initial attack is completed liy the beginning of storage 

 while much of the emergence is completed soon after. 



In contrast to this short period for development, the only 

 record of timed breeding from ripe })ods yet secured gives a 

 period of 130 days for develo])nicnr during the codlei- months 

 of the year here. 



Bruchus sallaei Sharp. 



This species has now spread from the originally discover- 

 ed center of infestation upon Punchbowl crater to both 

 extremities of the island of Oahn at Katma and Maka])\ni 

 Points. 



Observations previously made indicated that this species 

 could breed at the expense of the seeds of Prosopis jidiflora. 

 In November, 1919, examination of weevils bi-ed by Mr. 

 Pemberton from pods of algaroba gathered at Waikiki showed 

 that 2Z% belonged to this species and more recent breedings 

 show that this species freciuently outnund)ers J), pio.sop'is in 

 the pods of Prosopis. 



It is exceedingly curious that the eggs of this species now 

 seem to be much more frequently laid in compact masses of 

 2-7, or more eggs, than previously observed. In 191'^. only 

 an indication of this was observed bnt now the prevailing 

 metho<l of oviposition upon the pods is in masses. The eggs 

 laid ni)on the seeds of Acacia farufsiana within the jiods 

 seem to be always laid scattered. Ordinarily the eggs of this 

 species are not laid upon the green ])ods of Acacia, farncsiana, 

 but Mr. Swezey has shown me a few laid upon green but 



