512 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
91. The variable leaf-hoppsb. 
Athysanus variabilis Fitch. 
Order Hemiptera ; family Cercopipi . 
Ponetnriog the leaves and succulent shoots and extracting their juices, froni the 
middle of .June till the middle of July, an oblong oval leaf-hopper of a sulphur yellow 
color, its wing-covers commonly with an oblique black stripe, their tips hyaline; 
its thorax and scutcl often tawny yellow or black ; its leugth 0.20. (Fitch.) 
This insect may every year be met with in numbers upon birch trees 
and also upon alders. It was once found literally swarming upon a 
white birch standing apart from other trees. (Fitch.) 
92. The smaller leaf-hopper. 
Athysanus minor Fitch. 
From the middle of June till the middle of August, a similar leaf-hopper to the pre- 
ceding, but of a cinnamon color, including its face, and having a colorless hyaline 
spot on the middle of its wing-covers and a larger one on their tips; its length U.l* 
to 0.20. (Fitch.) 
93. The windowed leaf-hopper. 
Athysanus feneslratus Fitch. 
From the middle of June till the last of July, a leaf-hopper resembling the forego- 
ing species, but with blackish wing-covers with similar hyaline spots and a small 
third one placed on the middle of the inner margin, and its forehead black with 
pale yellow band between its eyes; its length 0.20 inch. (Fitch.) 
94. Athysanus abietis Pitch. 
Order Hemiptera ; family Tettigoxiid^:. 
Puncturiug their leaves and extracting their juices the latter part of May and 
during the month of June, an oblong black shining leaf-hopper 0.20 long, tapering 
posteriorly, and broadest across the base of the thorax, with a light-yellow head, 
having the mouth black and also two bands upon the crown, the ends of which are 
often united, and commonly with a white streak on the middle of the iuuer edge of 
the wing-covers, its legs being pale yellowish varied more or less with black. 
" I first met with several specimens of this iusect eleven years since, 
upon the black spruce and fir balsam, on the summit of the Green 
Mountains, in an excursion hither with that martyr of science, the late 
Prof. O. B. Adams. Since then I have repeatedly captured this same 
insect upon birch trees, distant from any spruces, and it is possible it 
might have been accidentally present on these latter trees in the instance 
first mentioned, there being numerous birch trees in the same vicinity. ,? 
(Fitch.) 
95. Enchenopa binotata Say. 
The following note is by Mrs. Dimmock (Psyche, iv, p. 241) : 
Enchenopa binotata Say (Appendix Long's Exped., 1824, p. 301, 302). Common on 
twigs of Betula alba. Riley (Amer. Entom . , Aug., 1869, v. 1, p. 248) says its favorite 
home is Ptelea trifolium, but gives grape (vitis) and red-bud (Cercis) as food-plants. 
It-- age is described in Amer. Entom., Oct., 1880, v. 3, p. 254. Lintner (1st Ann. Rept. 
State Entom., N. Y., 1882, p. 281-288) gives an excellent general account of imago 
and eggs, both of which are figured. As food-plants he adds Celastrus scandens and, 
upon the authority of others, Juglans and Rohinia. 
