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the back; under side mealy, with a black spot near the tip; antennae 
dull white, with a black ring at the tip of each joint. Length to the 
tip of the abdomen, 0.15 inch. Whether this is the L. abietis of 
Walker or not, I am not at present able to state. 
Lac hnus alnifolive. Fitch. The Alder-leaf Lachnus. 
Found on alder leaves. Green; antennae greenish-white, with four 
black rings; legs greenish white; feet, knees and a line on the posterior 
side of the tibiae, black; wings hyaline, the discoidal veins black. 
Length, 0.10 inch. 
Lachnus quercifokue. Fitch. The Oak-leaf Lachnus. 
Dr. Fitch describes this species as follows: 
“Light yellow; antennae pellucid white, with a slender black annulus 
at the tip of each joint; fore wings with a blackish spot on the apex 
of each nerve, and a deep black dot on the base of the curved apical 
nerve; stigma whitish. Length to the tip of the wings .15. On the 
leaves of the white oak. Male (?).” 
The following is a description of a species I found on white oak 
leaves, which I presume is the same that Dr. Fitch describes: 
Apterous individuals .—(apparently hardly full-grown). 
Antenme longer than the body; third joint longest, the second about 
four-fifths the length of the third, thence decreasing reguUrly to the 
sixth, which is divided into two parts differing in diameter, or there 
is a seventh which is not more than half of the length of the sixth; 
sparsely covered with hairs placed alternately. Honey-tubes very short, 
the diameter exceeding the length, snowy white; tail short, semi-cir¬ 
cular; body slightly hairy. General color brown; head paler and yel¬ 
lowish; first two pairs of legs transparent white; hind legs brown, ex¬ 
cept the tarsi, which are pale. Beak whitish, and reaching slightly 
beyond the third coxae. The young are yellowish white, with brown 
patches; as they increase in age they grow darker, assuming a tortoise¬ 
shell appearance; the middle of the back and a spot each side of the 
abdomen at the shoulders, pale. The older specimens show a distinct 
ridge along each side of the abdomen. Segments of the abdomen 
very distinctly marked. Nearly oval in form; length less than one- 
tenth of an inch. 
Found on the upper surface of the leaves of the white oak, at Car- 
bondale, Illinois, in August. 
If this is the same as Dr. Fitch’s species, I have some doubt as to 
the correctness of the generic position he has assigned it; but am un¬ 
able to determine positively until I can obtain winged specimens; if 
these should have clouded wings I would place it in Callipterus. They 
were partially covered by fine particles of matter apparently cemented 
by a viscous fluid. 
