153 



ENTOMOLOGICAL PBOGRAM. 



Inisects Associated with "Mamake" (Pipturus ajbidus), a 

 Native Hawaiian Tree. 



BY OTTO il. SWEZEY, 



Among the native trees and plants of the Hawaiian Islands, 

 the scientific observer notices when on excursions to the moun- 

 tain forests, that there are some species very little or not at all 

 attacked hj insects ; while on the other hand, othei- species are 

 very badly attacked by them. If the scientific observer be an 

 entomological collector he soon gets to know which trees or 

 plants are good for collecting and which ones it is not worth 

 while trying to collect insects from. The ^^mamake" tree is 

 one of the species which are very much attacked by insects. It 

 seems to be a special favorite for quite a large number of insects ; 

 there being quite a few species even that are exclusively (or 

 nearly so) attached to it. 



During the past two or three years I have taken records and 

 notes on insects found on "mamake," in my collecting trips to 

 the mountains, and I think that it is quite desirable that my 

 notes should be published. My observations have been mostly on 

 Oahu ; but to a slight extent on Maui, Hawaii and Kauai also. 

 I have embodied in this, notes and records contributed by Mr. 

 W. M. Giffard on Coleoptera that he has collected and reared 

 from "mamake." 



I have found this a very interesting line of entomological re- 

 search, and would earnestly advise other members of the Society 

 to take up something similar in connection with their collecting- 

 trips. 



I have first treated of the insects according to their Orders be- 

 ginning with the Lepidoptera, the work of which is the most 

 conspicuous to the casual observer. Then following are lists 

 with respect to the part of tree attacked, predators, parasites, 

 etc. 



Lepidoptera. 

 family ny'mphalidae. 



Vanessa tammeamea Esch. — This is the large native butter- 

 fly. Its larvae are large, green, spiny caterpillars which feed 



Proc. Haw. Ent. Soc, II, No. 4, April, 1912. 



