531 



The Green Japanese Beetle in New Jersey 



r.y J. L. KING, 



Of the Pt'iiiisylvaiiia Department of Agriculture. 



Mr. King" discussed at some length the invasion of the 

 States of New Jersey and Pennsylvania by the green Japanese 

 beetle (Popilia japoiiica) and the progress of the work being 

 done to suppress it. Me was en route to Japan in search of 

 parasites of this beetle. 



Opcstega in the Hawaiian Islands (Lep.). 



P.Y (). II. SWEZEV. 



In the "I'auna Mawaiiensis." two si)ecies of this genus were 

 described and figured: macitlata Walsm. and dii'cs W'alsni. The 

 former on a single specimen from Molokai, and the latter on 

 two specimens from llalemanu, Kauai. These are very small 

 moths, and in all of my collecting in the Hawaiian forests I 

 have only once collected a specimen of this g'enus. It was 

 on the summit of Alt. Kaala of the W'aianae Range, Oahu, and 

 was not either one of the described species. I have, however, 

 reared four different species from mines in the leaves of 

 various species of Pcica, from various localities on Oahu. 



Peculiar mines were discovered in the leaves of Pclca a 

 long- time ag'o, but the insect producing- them was not ascer- 

 tained. Finally larvae were found in some of the mines, but at 

 first it could not be determined to what order of insects they 

 belonged. The larvae are very slender, and the head structure 

 very peculiar. In 1910, when I was at the National ]\Iuseum 

 at Washington, D. C, Mr. lUisck showed me some larvae which 

 he had recently received of a species of Opostcga which is a 

 cambium-miner in Ribes. I at once noted the similarity of 

 these larvae to those found in the mines in Pclca leaves, and. 

 hence, since then considered that these mines were produced 

 by Opostcga larvae. 



I have repeatedly brought in Pclca leaves with mines and 



Proc. Haw. Eiit. Soc, IV, No. 3, September, 1921. 



