A 
178 INSECTA. 
minates by a truncation, so as to serve as a point d’appui to the base 
of the scutellum, and even frequently receiving it, thjs truncated part 
being concave or emarginated. 
ZBTrauion, Lat.—ATAuIA, Germ. 
The Insects of this subgenus are distinguished from those of other 
subgenera of the same divisicn by several characters. The head, 
viewed from above, merely presents a transversal edge; the front is 
abruptly inclined, and the ocelli are situated there between the ordi- 
nary eyes, and consequently inferiorly. The antenne, very small 
and distant from the latter organs, are inserted beneath an ideal 
line drawn from one to the other. The space immediately under 
the front is flattened and smooth. The tibiz are neither ciliated nor 
dentated *. 
In the three succeeding subgenera, the vertex is triangular and 
bears the ocelli. The antenne are inserted in an ideal line drawn 
from one ordinary eye to the other or above it. 
Lepra, Fab. 
Where the head*is much flattened before the eyes, in the form of a 
transversal clypeus, arcuated, and terminated in the middle of the an- 
terior margin by an obtuse avgle. All the under part of the head is 
plane or ona level. The sides of the prothorax project in the man- 
ner of horns rounded at the extremity, or of pinions. The posterior 
tibiz are strongly compressed and as if bordered externally by a den- 
tated membrane. The 
L. aurita; Cicada aurita, L; Cigale Grand-Diable, Geoft., 
belongs to this subgenus +. 
Ciccus, Lat. 
Where the antennee terminate directly after the second joint in a 
seta composed of five distinct, cylindrical, and elongated joints. The 
anterior extremity of the head usually projects +. 
* Lat., consid., sur ?Ord. des Crust. des Arach. et des Insect. and the Zool., 
and Anat. of MM. Humboldt and Bonpland. See Germar, Magas. der Entom., IV, 
- 94. 
q + See Fab., Syst. Ryngot., and Lat., Gener. Crust. et Insect., III, p. 157. See 
also Encyc. Méthod., Insect., X, 600, article Tettigone, and also Tettiyonides, Ib., 
where the editors, Messrs. Lepeletier and Serville, offer some new considerations 
and establish new genera, but with which I was unacquainted until I had terminated 
my work on this family, and consequently had no time to verify, on the Insects 
themselves, the characters which they assign to those sections. I will restrict my- 
self to the following remark. ‘The description of the Euryméle fenestrée exactly 
agrees with a species figured by Donovan, in his splendid work on the Insects of 
New Holland, and consequently the editors of the article in question must have been 
deceived as to the habitat of this Insect, which they say is from Brazil. In case 
this synonyme be correct, the distinctive character of this new genus, the absence of 
simple eyes, would be false, for they exist on the superior part of the front, although, 
at first, they are not easily perceived. ‘This species would then re-enter the subge- 
nus Jassus, 
+ The Cicada adspersa and marmorata, Fab. ; bis Fulgora adscendens, &c. I pre- 
sume that several other species of the genus Cicada of this author, and of the Tetti- 
gonia of M. Germar, should also be referred to it; my collection of them, however, 
not being sufficiently numerous, I content myself with these indicia. 
