1933] Trichoptera from the Appalachian Mountains 43 
Aug. 25, and another at Nantahala Gorge, N. Carolina, 2000 
ft., Aug. 27. 
HYDROPSYCHIDiE 
Hydropsyche alternans Walker 
Figure 1. 
Seven specimens of this common eastern species were 
taken at Bryson City, N. Carolina, and also at Smokemont, 
Andrews, and Willets, Aug. 24 and 25. 
Hydropsychodes minuscula Banks 
Although originally described from Plummer’s Island, 
Maryland, this species was represented by thirteen species 
from Nantahala Gorge, Andrews, Ashland in N. Carolina, 
Aug. 22-25 ; and near the French Broad River, Tennessee, 6 
miles west of the N. Carolina line, Aug. 28. 
POLYCENTROPIDJE 
Phylocentropus carolinus, n. sp. 
Figure 9. 
$ Length of fore wing, 6 mm. ; vertex and frons gray- 
brown; antennse yellow, except the basal segment, which is 
brown; thorax covered with bray-brown hairs; legs yel- 
low; wings spotted with brown and yellow. Fore wing: 
Rs arising near the middle of the wing; forks R2 + 3 and 
R4 + 5 are the same depth ; fork M3 + 4 deeper than M2 + 3 ; M 
dividing before the origin of Rs ; Cul forked below Rs. Gen- 
italia as in figure 9. Female unknown. 
Holotype ( $ ) : Nantahala Gorge, 2000 ft., N. Carolina, 
Aug. 25; N. Banks, collector. Paratypes: two males, Bry- 
son City, Deep Creek, N. Carolina, Aug. 26 ; N. Banks, col- 
lector ; one male, Bryson City, Aug. 25, F. Carpenter, collec- 
tor; four males, Nantahala Gorge, N. Carolina, Aug. 25, N. 
Banks, collector. 
This species is the fourth to be described in the genus ; it 
