NEUROPTEROUS INSECTS. 
23 
Olivier has two different species of the name of 
lydia, both of which he quotes from Drury. We 
have therefore changed the name of the present 
species. 
9 . L . quadrupla. Thorax with a whitish vitta ; ab- 
domen with a lateral, yellowish one ; wings with a 
bicolored stigma, and basal blackish line. 
Inhabits Massachusetts. 
This insect very closely resembles L. leda, S. 
It differs, however, in being smaller, and in having 
the stigma larger, white, with a black tip. The 
male is destitute of the black wing tips, and lik e 
the female, has the exterior half of the costal mar- 
gin tinged slightly with ferruginous. The anal 
processes are short, subcylindric, a little smaller at 
base, and beneath, towards the tip, minutely den- 
ticulated ; at tip a small point. 
The sexes were sent me by Dr. Harris. 
Length from one inch and three-fifths to one 
inch and seven-tenths. 
10. L. basalis. Wings fuscous on the basal half. 
Inhabits U. S. 
3 Body brownish-black; head immaculate, dark 
bluish ; wings dark fuliginous opaque, on the basal 
half, beyond which is a broad, milk-white, almost 
opaque, band ; stigma blackish ; abdomen somewhat 
depressed, of equal diameter nearly to the tip, 
dusky, with a lateral dull yellowish vitta; beneath 
black-brown. 
Length nearly two inches. 
[In a note attached to this description by Mr. Say, 
