STATE AGRICULTURAL SOCIETY. 
465 
BUTTERNUT. LEAVES. 
its form and spots to the Brazilian Enchophyllum ensatum* to be 
genetically separated from that species. Indeed the distinction 
between the two genera is much too slight and vague, in my view, 
to justify their division. In some of the species which authors 
place under Enchenopa the thorax appears to be as distinctly 
compressed, thin and foliacious as it is in some of those arranged 
under Enchophyllum. The cells and veins of the wings are also the 
same in all these insects. It is therefore on good grounds that 
M. Fairmaire suppresses Dr. Burmeister’s section foliaceo-ensatce , 
the equivalent of Enchophyllum and includes all these insects 
under the one section, ensatce. At the same time we view this 
group as too widely dilferent and conspicuously marked by the 
horn-like protuberance of the thorax, to be retained under the 
genus Membracis. We would accordingly drop the name En¬ 
chophyllum , and include all these insects in the one genus Enche¬ 
nopa, a term meaning sword-faced or sword-fronted, and which is 
therefore appropriate for all the species of this group. 
191. Butternut tree-hopper, Ophiderma mcra, Say. (Ilomoptera. Mcm- 
bracidse.) 
A greenish gray tree-hopper shaped like a half cone, with its 
apex bright chestnut-red and behind its middle a black band 
which is sometimes interrupted on the summit of the back, and 
with a blackish spot on the tips of the hyaline wing-covers. 
Length 0.36. 
I have only met with this insect in a few instances, always 
upon the butternut. I could find no place for this species among 
the genera characterised by Amyot and Serville, and therefore 
proposed a new genus named Caranota in my catalogue of Homop- 
tera in the State Cabinet of Natural History. This genus appears 
to be the same with that named Ophiderma by M. Fairmaire a 
few years before. The single species, salamandra, given as the 
type of this genus, is credited to the state of New-York, and ac- 
• Upwards of a dozen individuals of this insect have fallen under ray observation, all of 
which concurred in showing that it is the male sex which is described by Fabrioius, whilst 
the females have been do oribed by M. Fairmaire as a distinct species under the naiuo 
quinquc-maculata . A variety of the female occurs, which I name intermedia , in which 
the anterior spot upon the back is merely a faint cloud slightly paler than the ground, 
whilst the middle frontal spot is bright orange, as usual in this sex. 
[Ag. Trans.] Dd 
