28 
NEUROPTEROUS INSECTS. 
Very much like a small specimen of rubicundula , 
S., but differs in several characters, particularly in 
the anal processes, and in the number of marginal 
cellules. 
16. L . simplicicollis. Wings immaculate ; stethi- 
dium yellowish; abdomen pale brown, a little 
varied with black. 
Inhabits Indiana and Massachusetts. 
? Frontal vesicle pale greenish-yellow ; a black 
band across at the antennae ; occiput and posterior 
orbits black, with yellow spots ; eyes acute above, 
almost meeting; stethidium green-yellow, alter- 
nating with black at the superior base of the wings ; 
wings immaculate; stigma fuscous; anal mem- 
brane narrow, black; feet black; thighs on their 
posterior side brownish ; abdomen brownish, with 
slender incisural black lines and black edges to the 
car in® ; a black spot on each, excepting the three 
basal ones ; beneath black ; anal appendices very 
short, green, mucronate. 
Length one inch and a half. 
Of the male I have but one specimen, which is 
of a greenish-yellow color, with the sutures and 
abdominal spots contrasting strikingly with it. 
Dr. Harris sent me a specimen for examination. 
17. L. obsoleta. Wings with a submarginal series 
of six or eight brown spots. 
Inhabits Indiana and Massachusetts. 
Body dusky ; wings hyaline ; anterior marginal 
and submarginal longitudinal nervures dull yellow- 
ish ; anterior wings with a submarginal series of 
