108 THOMAS SAY FOUNDATION 
somewhat depressed; the femora with a faint transverse, brown- 
ish band; a fringe of long hairs on the outer margin of femora 
and tibiae; first segment of tarsus shorter than second; from a 
dorsal view it appears to be only one-third as long, but on the 
ventral side it is nearly as long as the second; segments one and 
two together shorter than three. 
Abdomen very nearly cylindric, light brown with a few scat- 
tered brown freckles on the basal half of each segment; cerei 
yellowish except for a very narrow, brown band at the apical 
margin, and composed of about fifty segments. The tenth ab- 
dominal tergite in the male is produced into a tuberele-like pro- 
jection; ninth abdominal sternite produced into a broad, flat- 
tened, subgenital plate, which is produced to the tip of the 
abdomen. 
Gills absent. 
Described from three male nymphs collected at Spencer Creek, 
Ithaca, New York, April 5, 1926. P. R. Needham. 
This species was originally described from California, but 
within the last few years it has been found in several localities 
in New York. Adults have been collected at Spencer, New York, 
April 5, 1926 (P. R. Needham), and at Copak Falls, New York, 
April 11, 1924 (Crosby and Chapman). 
