THE TREE-HOPPERS. 
221 
maculata of Fabricius and univittata^ of my Catalogue have 
a thin horn-like projection, blunt, however, at the end, ex¬ 
tending obliquely forwards and upwards from the fore part 
of the thorax; and M. hinotata and latijMS ^ of Say have a 
similarly situated horn, narrower however, and curved, so 
as to give to the insects, when viewed sidewise, the shape 
of a bird; and, lastly, in M. bubalus of Fabricius, diceros 
of Say, and taurina^ of my Catalogue, the ridge of the tho¬ 
rax, viewed from above, has somewhat the shape of the 
letter T, becoming broad at the fore part, and extending 
outwards on each side like a pair of short thick horns, which 
gave rise to the foregoing specific names, meaning buffalo, 
two-horned, and kine-like. 
The habits of some of the tree-hoppers are presumed to 
be much the same as those of the musical harvest-flies, for 
they are found on the limbs of trees, where they deposit 
their eggs, only during the adult state, and probably pass 
the early period of their existence in the ground. Others, 
however, are known to live and undergo all their changes 
on the stems of plants. Among the former is our largest 
native species, the two-spotted tree-hopper, or Mem- 
bracis bimaculata* of Fabricius (Fig. 89), which 
may be found in great abundance on the limbs of 
the locust-tree {JRobinia pseudacaeia) during the 
months of September and October. These, as well 
as other tree-hoppers, show but little activity when undis¬ 
turbed, remaining without motion for hours together on the 
limbs of the trees ; but on the approach of the fingers, they 
leap vigorously, and, spreading their wings at the same time. 
* Fabricius describes the male only under this name; the female is his Mem- 
bracis acuminata. This species belongs to Professor Germar’s new genus, Hemi- 
.9 
[ 6 M. bimaculata and univittaia belong to Thelia, Amyot. — Uhler.] 
[7 M. hinotata and latipes belong to Euchenopa^ Amyot. — Uhler.] 
[ 8 M. bubalus^ diceros, and taurina belong to Ceresa, Amyot. — Uhler.] 
[9 It might be added, that this genus is now restricted to Membracis punctata, 
Fab , and a few allied species. — Uhler.] 
