130 
Psyche 
[December 
roca not at all pointed above) ; the superior plate has a me- 
dian rounded emargination, which when not shriveled, is 
as wide as deep ; the male eyes wide apart. Apical part of 
claspers slightly enlarged at tip. The female has the mid 
basitarsus dark and but little swollen. The fore wing is 
11 mm. long. 
Type (and paratypes) from Westfield, N. Y., June and 
July 1905 (Woglum coll.). Others are from Saskatchewan, 
Scudder. 
Polycentropus confusus Hagen was described from three 
specimens, two from Trenton Falls N. Y., and a female 
from Washington, D. C. One, a female, from Trenton Falls, 
N. Y. has the discal cell in the hind wings closed and is a 
Plectrocnemia, and is so treated by Betten, necessitating a 
change in Plectrocnemia confusa, Mosely. This specimen 
when I first saw the collection and until lately was the first 
specimen in the row. But the other specimen from Trenton 
Falls, N. Y. is a male, a true Polycentropus. In 1914 (Can. 
Ent.) I figured the genitalia of this species as Polycentro- 
pus confusus; I have therefore selected this Trenton Falls 
male as lectotype of Polycentropus confusus Hagen and 
so marked it. Thus Mosely’s Plectrocnemia will not need 
renaming. 
The selection of these lectotypes will result in keeping 
several of the Hagen names as they have been treated and 
figured, which, I believe, is better than to make the changes 
which have recently been put forward, and in each case the 
specific names is retained in the genus in which Hagen de- 
scribed it. 
