63 



honey-dew on Lnsbes. It probably spends much of its time 

 underground . 



The illustrations are the work of ^b\ W . \l. \l. Potter, 

 artist for the Hawaiian Sugar Planters' Association Experi- 

 ment Station. 



Some Observations on the Leaf-Hopper Wasp, Nesomimesa 



Hawaiiensis Perkins, at Pahala, Hawaii, 



Feb. 11-April 25, 1918. 



BY F. X. WILLIAMS. 



This is a slender, glossy black wasp (Fig. 1) about 1/2" 

 (13 mm.) long frequently observed slowly flying in the more 

 upland cane fields of the Hawaiian Agricultural Co. at Pa- 

 hala. Xone was seen below an elevation of about 1,000 feet, 

 and it was found to occur up to 3,500 feet; it was most plenti- 

 ful, however, in Wood Valley, altitude 1,850-2,200 feet, where 

 its adopted prey, the cane leafhopper (Perhinsiella sacchari- 

 c'uld Kirkaldv) was for some months verv abundant. 



Fio-. I. W'sotiiiiiu'sa hawaiiensis. 



Dr. Pci'kins has observed the Hawaiian ^liinesidae storing 

 their burrows with native daddy-longleg flies (Limnobiidae), 

 but it is certain that some attack native leafhoppei-s a-- well. 



law. Knt. Soc, IV. Xo. T. June. iqtq. 



