210 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
than to the first : third obsolete at the immediate base, curving somewhat strongly 
outward as it approaches the origin of the drat fork; second fork rather nearer to the 
apt\ of the wing than to the third vein, but difference slight; fourth vein very 
sharply curved throughout, so that its middle portion approaches much nearer the 
ftnt fork than its ends. Antenna- longer than the body, slender: third joint longest ; 
fourth a little shorter than the third; fifth a little shorter than the fourth; sixth 
about half the length of the fifth or less; seventh, in the only complete antenna* 
obtained, about as long as the fifth. 
" Ou most of the specimens I was unable to observe aiiy honey-tubes ; 
but in one specimen found on the same leaves, and which appears to 
belong to this species, these were apparent but very short, their length 
scarcely exceeding their diameter. This specimen was of the same 
delicate yellowish color, but the wings were perfectly pellucid. It is 
impossible to decide in reference to the honey-tubes from the mounted 
specimens, which are imperfect. On one of these specimens I found a 
species of mite fastened to the metathorax or base of the abdomen, so 
us not to interfere with the flight of the Aphis. It is probably a species 
of Trombidium, but as it is evidently in its larval state it is difficult to 
assign it to its proper position. It is probably the young of Dr. 
Packard's T. bulbipes, but it differs from that species in not having the 
tarsi enlarged. It also has the tarsi furnished with two strongly 
curved claws. It is possible that this is Dr. Fitch's Lachnus quercifolicc, 
but it is impossible to identify the two from bis very brief description. 
It approaches very nearly to Aphis quercus Kalt., which Koch has 
placed in CaUipterus, and I would have identified it with that species 
but for the clouded wings. It will fall in Myzocallis as I have given 
the characters of that genus, and is probably a variety of the species 
under which I place it." (Thomas.) 
296. CaUipterus discolor Monell. 
Prof. Riley found, November 12, 1884, at Washington, D. C, on the 
lower side of leaves of Q.prinus, numerous specimens of the apterous 
oviparous females, larva 1 , and the winged males of the above species. 
The male is of a more or less dark rose color, though the fourth, fifth and last 
abdominal segmeuts are yellowish, with a roseate tinge at sides. Head black. Ocelli 
clear, colorless. Eyes red. Antennal joints 3 and 4 whitish with blackish tips, the 
others black. Thorax black. There are two roseate stripes on prothorax and the 
sides of the mesothorax at insertion of the wings are dusky. There are two dorsal 
rows of black spots on the abdomen, of which the pair in front of the nectaries is con- 
fluent. A row of large, black, roundish, lateral spots and some smaller ones of differ- 
ent sizes between these and the dorsal rows. There is also a narrow, transverse baud 
on the eighth segment. Nectaries short, black. Claspers blackish. Legs colorless, 
the tarsi pale dusky. Sternum black. Ou the venter are some large, transverse, and 
some smaller black spots. (Unpublished notes.) 
'JD7. CaUipterus puuetatus Monell. 
Professor Riley found, May 19, 1S83, at Washington, D. C, numerous 
specimens on the lower side of leaves of Q. prinus of an Aphid which 
