818 
ANNUAL REPORT OF NEW YORK 
OAK. LEAVES. 
oua. A school teacher who waa reoently employed in Michigan, in a 
school house which was surrounded with shrub oaks which were loaded with 
these galls, informs me that for many days the pupils at every recess were 
filling their pockets with them, and eating them almost incessantly, yet 
without ill effects therefrom in any instance. 
318. Clovdy-tyinoed gall-fly, Callaspidia nulrilipennis, Harris. 
Galls like the preceding, hut only the size of a hazelnut or grape, grow¬ 
ing through the leafy expansion of the red oak, a third of the sphere pro¬ 
jecting from the upper surface of the leaf and the remainder opposite on 
its under side ; producing a large black gall-fly with tawny yellow legs and 
its wings smoky on their disk and tips, with none of the veins continued 
into the margin, the antennae thirtcen-jointed in the female, which is 0.20 
long, and to the tips of her wings 0.30. 
I met with this fly among fallen oak leaves early in April, where it might 
have been reposing through the winter; and from the brief, indefinite 
notice which Dr. Harris gives of it and its gall, I infer it to be from the 
gall above described, which I have only found after the fly had escaped. 
Galls perfectly the same, however, except that they show no vestiges of 
any attachment to a leaf, being smooth and even on every side, are some¬ 
times found among fallen leaves, perforated, early in the spring. 
This species and the Oak-apple gall-fly, having none of the wing veins 
prolonged into the margin, and the scutel obtuse and rough, will belong to 
Dalman’s genus Callaspidia. But while the antennae are thread-like in 
the Oak-apple gall-fly, they are slightly thicker towards their tips in the 
present species, and are also shorter, not reaching the base of the thorax. 
The second veinlet of the fore wings is curved like a bow in both these 
species, which appears to be a generic character of much value. And I do 
not hesitate in referring the Oak-bullet gall-fly (C. Qvercus-globnlus) to 
this genus also, notwithstanding the one additional joint in its antenna;, its 
aspect being so very like that of the Oak-apple gall-fly, as Dr. Harris has 
observed. Its size, its pubescence, its second veinlet edged with smoky 
along its hind side and angularly bent, show its greater affinity to these 
than to the species of the genus Cynips. And the outer longitudinal 
or subcostal vein dees not fully reach the margin, although it is much less 
widely separated therefrom than in the two other species. On the whole, it 
should probably be regarded as forming the type of a new genus. 
319. Oak-pea gall-fly, Cynips Quercus-pisum, now species. 
On a vein on the under side of white oak leaves, a globular gall resem¬ 
bling a pea, its surface finely netted with fissures or cracks and intervening 
elevated points like the surface of a strawberry, usually with two cavities 
in its center divided by a thin partition ; producing a black gall-fly with 
legs, antennae and the valve of the lower tip of its abdomen pale dull yel¬ 
low or straw color, and also the face and mouth in the males, the antennoo 
