388 
ANNUAL BEPORT OF NEW-YORK 
GRAPH. STALKS. 
specimens sent me by Dr. Signoret of Paris, to be the same with 
the European scale insect of the vine. See Kollar’s Treatise, p. 
155. 
97. Four-spotted spittle insect, Aphrophora \-wotata, Say. (Ilomoptera. 
Cercopidae.) 
A spot of white froth resembling spittle, appearing upon the 
bark in June, containing under it a pale wingless insect which 
punctures the bark and sucks its juices, as does also the perfect 
or winged insect which occurs upon the vines the beginning of 
July, and is a flattened tree-hopper of a brown color, its wing 
covers having a blackish spot at the tip, another on tire middle of 
the outer margin and a third at the base, with the spaces between 
these spots hyaline white. Length 0.30. 
98. Signoret’s spittle insect, Aphropliora Signoretii, new species. 
In habits and appearance like the preceding, but without any 
black spots or marks, its ground color being tawny brown with 
dull whitish clouds, and thickly punctured with black, the wing 
covers having a small white spot on their inner margin near the 
tip and a larger one opposite this on the outer margin. Length 
0.32. 
This species has a whitish stripe between two blackish streaks along tho 
middle of the head, but no distinct raised line either here or upon the front. 
Still, that it pertains to this genus, rather than to Ptyelus, is shown by its 
ocelli or eyelets, which are placed nearer to each other than to the eyes, and by 
tho base of its head, which is angularly notched in the middle instead of being 
rounded in a regular curve, as we find it to be in both Ptyelus nnd Lepyronia. 
I regard these as the most valid characters by which to discriminate these 
closely related genera. Another spittle insect which I discovered common 
upon the pitch pines on the sand plains of Saratoga, and described in my Cata¬ 
logue of Homopterous insects in the State Cabinet of Natural History, under 
the name of Lepyronia Saratogensis, was the same year described by Mr. 
Walker, (List of the British Museum, p. 714,) under the name Ptyelus gelidus, 
his description having issued from the press a few months subsequent to mine. 
Mr. Walker has, accordingly, in the supplement to his list, (page 1153), done 
me the justice of giving precedence to my name. I think, however, that both 
this species and the parallela of Say must be carried back to the genus Aphro¬ 
pliora, since tho nearness of their ocelli removes them from Ptyelus, whilst the 
length and narrowness of their wing covers separates them from Lepyronia, 
