391 



KcUsia sirczci/i. — Reported bv ]Mr. Bridwell fvdin the lower 

 slope of ]\rt. Kaala. The lirst reein-d of this I)el])liacid from 

 the Waiaiiae ^loniitaiiis. 



Fofafu mite. — Air. Jjrichvell reported that Mr. Carpenter of 

 the Agricultural Experiment Station had found that sulphnr 

 dnsted onto potato plants was quite successful in combating 

 this pest. 



Notes on the Habits of Brosconymus optatus Sharp 

 (Carabidae). 



BV J. ('. BKIDWKLI.. 



The genera Dci-ohroscus and Biosronynius were descril)ed''^ 

 from eight specimens collected by Dr. Perkins in the moun- 

 tains of Oahu and 1 have been unable to find any records of 

 their having been taken since. Upon two occasions while in 

 company with ^h\ Timberlake it has been my good fortune 

 to take what I take to be Brosconymus optatus in considerable 

 numbers. The locality in which it Avas found is somewhat 

 out of the range of Dr. Perkins' collecting grounds. 



The trail which leads u]) from Leilchmi to the summit of 

 ]\fount Kaala in the Waianae ^Mountains ascends a lateral spur 

 at right angles to the main ridge, the initial sharp ascent 

 ending at aliout :^.")()0 feet in elevation and for a mile or more 

 the ascent is much more gradual, the ridge joining the main 

 mass of the mountain at about ^5500 feet. Along this ridge 

 the ohia lehua (Metrosideros pohjmorpha) trees have their 

 trunks covered with mosses and on their branches from six to 

 eight feet from the ground are mats of moss of several species 

 but principally of two species, one pale green, erect and densely 

 matted together, the orlier dark green, branched and in loose 

 mats. While Brosronijinus was occasionally found among the 



Sharp, Fauna Hawaiiensis 3:197-9 and 290, 1903. 



Proc. Haw. Ent. Soc, III, No. S, April, 1918. 



