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third vein, which is twice forked, arises apparently from the stigma, 
but is obsolete or nearly so at the immediate base. The fourth vein 
is nearly obsolete, when seen under a strong microscope it is repre¬ 
sented by a series of points; curves regularly but not sharply. Stigma 
rather broad, somewhat hatchet shaped, widening toward the apex, 
with a distinct angle at the point where the fourth vein arises. The 
second fork of the third vein about equally distant from the apex and 
third vein. Posterior wings with two branch veins. Antennae not on 
a tubercle, about as long as the body; third joint long; fourth about 
three-fourths the length of the third; fifth fully as long as the fourth, 
and about twice the length of the sixth, which is a little longer than 
the seventh. The whole antenna is quite slender. Honey-tubes im¬ 
perfect in all the winged specimens, but appear to be very short, length 
not exceeding the diameter. 
Wingless specimen .—Front of the head rather obtusely advanced in 
the middle. Honey-tubes very short, length less than the diameter; 
tip of the abdomen extending or drawn out to a point, but no true 
tail was observed. Along the lateral margins of the abdomen, in 
front of and behind the honey-tubes are minute tubercles, each giving 
rise to a hair; these tubercles are quite distinct, and about one to each 
segment. 
Prof. Bundy furnishes the following brief note in reference to this 
species: 
“On elm ( Ulmus Americana). June, Sauk City, Wisconsin; scattered. 
Female uniform lemon-yellow.” 
I am in considerable doubt in reference to the proper generic position 
of this species. It evidently belongs to Callipterus, as defined by Koch, 
but Passerini has cut off from this his genus Pterocallis. I have but 
one memoir of the latter author, and although this contains a con¬ 
spectus of the genera, it does not contain a diagnosis of this genus. 
So far as I can ascertain this species is evidently quite distinct from 
any other species described as from the elm. 
Callipterus quercifolii. N. Sp. 
Winged specimen. —Antennae nearly as long as the body, seven 
jointed; first joint quite large and very prominent, nearly twice the 
length and twice the diameter of the second joint, which is rather 
small, and of the usual sub-orbicular form; the third joint longest, 
but it exceeds the 4th very little, 5th very little shorter than the 4th; 
sixth not more than one third the length of the fifth; seventh a little 
shorter than the sixth. 
The wings as usual; third discoidal vein of the front pair twice 
forked; the hind pair with two discoidal or branch veins; all the 
veins and branches are bordered with dark brown, giving them the 
appearance, when seen through a pocket magnifier of broad black 
veins; the bordering does not expaned at the tips of the veins, but 
retains its uniform width throughout. Stigma opaque, brown, with a 
posterior bordering of brown, fusiform in shape, being very acutely 
pointed at the apex, with no internal angle at the point where the 
fourth vein arises. 
