HEMIPTERA. 47 
and numeraus and projecting nervures. The head is broad and 
as if truncated anteriorly(1). ‘iN 
Evperrx, Germ. 
Where the head is much flattened and forms an elongated trian- 
gley with the ocelli situated before the ordinary eyes on its edges, 
which are prolonged over those organs and intersect them longi- 
tudinally throughout the greater portion of their extent(2). 
Prenturmra, Germ. 
Where the antenne are inserted in a large fossula, which nar- 
rows, more than is usual, the space comprised between the eyes. 
The head, which viewed from above appears semicircular and 
gradually inclined anteriorly, is rounded, and its edges project above 
this fossula. The simple eyes are situated near the middle of the 
vertex.. The body is short. These Insects at a first glance somewhat 
resemble the Cercopes, and in fact Fabricius confounds them(3). 
Near this subgenus we should apparently place that of the Gypona, 
Germar, of which however I have never seen a specimen(4). 
Jassus, Fab. Germ. ‘ 
Where the vertex or superior plane of the head comprised be- 
tween the eyes is very short, transversal, and linear, or in the form 
of a bow, and projects but little beyond the eyes even in the middle. 
The laminz which support the sides of the clypeus are large. The 
antenne are terminated by a long seta. The ocelli are situated 
near its anterior margin, and even under it(5). In 
Terriconia, Oliv. Germ.—Cicada, Lin. Fab. 
Or the Cicadelle or Tettigoniz, properly so called, the head, 
viewed from above is triangular, without however being much elon- 
gated or flattened; a character which distinguishes these Insects 
from the Eupelices. The eyes are not cut by its edges. The sim- 
(1) Germ., Magas. der Entom., IV, p. 54. 
(2) Ibid., p. 53; Cicada cuspidata, Fab. 
(3) The C. atra, hemorrhoa, sanguinicollis, Germ., Magas. der Entom., IV, p. 47. 
(4) Germ., lbid., p. 73. 
(5) Germ., Ibid., p. 80. 
