170 WESTERN QUARTERLY REPORTER. 



[From the Western Quarterly Reporter, vol. ii. No. 11, for April, May, 

 and June, 1823, p. 160—165. 



Description of Insects belonging to the order NETJEOPTERA Lin., Latr. 

 Collected by the Expedition authorized by J. C. Calhoun, Secretary of 

 War, under the command of Major S. H. Long. 



BY THOMAS SAY, 



Professor of Natural History in the University of Pennsylvania, and of Zoology to the 

 Philadelphia Museum. 



ARTICLE IV. 

 Natural History. 



Genus PHRYGANEA L. Latr. 



1. P. viridiventris. — Body pale brownish ; abdomen bright 

 green ; feet whitish. 



Inhabits the Ohio river. 



Body pale brownish, somewhat hairy, hairs cinereous; head 

 white beneath ; eyes prominent, chestnut-brown ; antennae rather 

 longer than the body, light brown, whitish at base ; pectus white; 

 feet white ; tarsi of the intermediate pair of feet, dilated ; supe- 

 rior wings ciliated, dusky or blackish, beyond the middle a few 

 whitish spots somewhat arranged in two bands ; inferior wings 

 dusky, immaculate ; abdomen bright green. 



Length to the tips of the wings three-twentieths of an inch. 

 Length of the antenna) one-fifth of an inch. 



Observed at Cincinnati about the middle of May; is common 

 but not very numerous. 



2. P. numerosa. — Body black ; antennae and feet pale brown- 

 ish ; abdomen with a rufous raised lateral line. 



Inhabits the Ohio river. 



Head transverse, narrow, black, with numerous cinereous hairs ; 

 eyes remote, prominent, hemispherical, black-brown ; antennae as 

 long as the body, brown ; basal joints hairy, black ; palpi pale ; 

 thorax black with cinereous hairs ; feet pale brownish ; wings 

 whitish brown, immaculate, nervures brown ; abdomen black, 

 posterior margin of the segments pale rufous, lateral lines of the 

 incisures raised, rufous ; tail pale rufous. 



