796 [Assembly 
„ fourth part of their length black, basal joint white with a black stripe the whole 
length on its outer side. Thorax with an impressed transverse line forward of the 
base of the first segment, and a longitudinal one on the anterior elevated lobe Of the 
second segment. Legs white. Wings very slightly angulated at their tips; stigma 
marked by a slight opacity; veinlets dusky or black. Wings expand 1.10. Taken 
the middle of July. 
41. (40.) A black dot on the outside of the first joint of the 
antennse at its tip. 
The DoTTED-noRNED Golden-eye (C. puncticornis) is perhaps only a variety of 
the preceding, as it corresponds with it in all respects, except that the basal joint of 
the antennse has only a black dot at its apex on the outer side and there are no dots 
on the edge of the sockets of the antennas; the first segment of the thorax has two 
transverse impressed lines and a longitudinal one behind the middle. The abdomen 
has a brown stripe above on each side. Wings expand 1.15. This also occuis in 
the middle of July. 
42. (39.) Antennse pale. 
The Consumptive Golden-eye (C. tabida ) is pale green, almost white; the head 
is white and without spots, except a slight discoloration on the cheeks in some indi¬ 
viduals which commonly disappears in the preserved specimen; the antenna; are white 
their whole length; the thorax is white along the middle and pale green upon each 
side; the wings are obtusely angulated at their tips, their veins white tinged in places 
with green, the veinlets greenish white, their ends black, the two series towards the 
tip entirely black. Wings expand 0.95. Occurs the fore part of August. 
• 
The Lace-wing flies pertaining to the genus Hemerobius differ 
from each Other much more than those we have been considering. 
They are generally of pale dull colors, but vary greatly in size, 
in the veins and spots upon their wings, &c. Most of the fol¬ 
lowing species have three longitudinal veins branching from the 
rib vein towards its base on the inner side ; the three last species,' 
however, have only two such veins, whilst the first has several, 
and the second has four. 
The Freckled laoe-wino (Hemerobius irroratus, Say) is black and hairy witha 
pale yellowish stripe on the middle and another upon each side of the thorax. The 
head, scutel and under side of the body is also pale yellowish. The wings are hyaline 
and glassy, with numerous irregular blackish spots and dots, those on the margin 
larger and alternated with whitish spets, and there is a largish darker colored spot 
near the middle and another towards the tips of the iDner longitudinal veins, situated 
upon their connecting veinlets. The veins are black alternating with white. The 
hind wings are without spots except in the region of the stigma; their veins are black 
with only the marginal and rib veins alternating with white. The wings expand from 
