304 



occasionally found nnder circumstances indicating the occas- 

 ional nse of Ehyncbophorous larvae.'" 



However, by the nse of the larvae of Neoclijtarlus euphor- 

 hlae it was found possible to breed the endemic mountain 

 species in the warmer climate of the lowlands in Honolulu. 

 Jn this way I have been able to breed considerable numbers 

 of S. chilonellae Bridwell, S. polyiiesialis Saunders, and S. 

 poecilodes Perkins.'"^" O^lj inade(|uate material of S. tantalus 

 Bridwell and S. lualae were obtained. 



Development. The eggs hatch in three or four days, the 

 larvae feed for about five days and the prepupal period, in- 

 cluding cocooning, the prepupal period and -diitinization of 

 the adults, require about fourteen or fifteen days, so that the 

 entire development from egg to adult requires from twenty-two 

 to twenty-four days. This with seven days for the develop- 

 ment of the eggs gives approximately thirty days from egg 

 to egg. 



The earlier stages of the larvae feed upon tlie surface of 

 the prey and then on reaching their full size the larvae gnaw 

 their way through the larval skin of the host and push their 

 heads and part of their body into the interior of the larva for 

 their final feeding, much as recorded by Dr. F. X. Williams 

 for Epyris extraneus. 



The instars of the larvae were not worked out in detail, 

 but an interesting development of the larval mandible was 

 observed, that of the first instar larvae being apparently simple 

 while the last instar has it ])ectinatc with about eight long 

 teeth, the number of tooth increasini>' with the moults. 



*In January. 1920, the writer found abundant material of S. poly- 

 ncsialis Saunders attacking both motli larvae and Clytarhis indcccns 

 larvae in the stems of Smilax on Mt. Kaala in the Waianae IMts. of 

 Oahu. A large proportion of the females were alate, the first alate 

 females found in any of tlic endemic species. 



**This interesting line of work was cut short by the writer's tak- 

 ing up anew his studies of the Bruchidae. It is to be hoped that fur- 

 ther studies of these endemic forms may be taken up and the compara- 

 tive biology worked out. 



