44 INSECTA. 
cylindrical, and the abdomen ovoid or oval. The antenne always 
consist of eleven distinct joints. The anterior thighs are inflated, 
and even sometimes dentated in several or at least in one of the 
sexes, These Insects evidently form the passage from this tribe to 
the following one. 
Sometimes the antenne are entirely or almost entirely granose or 
composed of short joints, either ovoid or globular, turbiniform, or al- 
most hemispherical. 
Of these, some resemble the Pimeliariz of the last subgenera in the 
dilatation and prolongation of the lateral margin of the head. Their 
labrum is very short or projects but little. The lateral borders of 
the thorax are straight or simply arcuated and rounded, and without 
any angular or dentiform dilatation. The eyes are but slightly pro- 
tuberant. 
Here the thorax is narrow, either cylindrical or in the form of an 
elongated heart, truncated at both ends. Such are 
TaceniA, Lat—Srenosis, Herbst.—Axis, Fab. 
Where the antennze are almost perfoliate with the third joint 
hardly longer than the following ones, and the eleventh or last very 
small or united with the preceding one. The head is elongated 
posteriorly, and borne on a kind of neck or knot. The thorax is in 
the form of an elongated heart truncated at both ends. The abdomen 
is oval *. 
PsammeEticuus, Lat. 
Where the antennz are composed of turbiniform joints, of which 
the third is much longer than the following ones, and the eleventh or 
last, as large as the preceding, is very distinct. ‘The head and thorax 
form a long square of equal width. ‘The abdomen is almost oval, 
and truncated at its base +. 
There, the thorax is at least as wide as the abdomen, and of an 
almost orbicular or square form, rounded laterally, and either isome- 
trical or wider than long. 
Scaurus, Fab. 
Where the last joint of the antennz is ovoido-conical and elon- 
gated; where the thorax is almost isometrical, and where the ante- 
rior thighs are strongly inflated and frequently dentated in the males. 
The tibiz are long and narrow. 
These Insects are peculiar to the hot and western parts of the © 
eastern continent f. 
Scorosius, Germ. 
Where the last joint of the antennx is hardly longer than the pre- 
ceding and in the form of a reversed top; where the thorax is evi- 
dently wider than it is long, and the lateral edges are strongly arcu- 
sw SSSSsSsSSSSSSSsSSSssSssSsses 
* Lat., Gener. Crust. et Insect., II, p. 149; Herbst., Col., VIII, cxxvii, 1—3. 
+ A subgenus established on some undescribed Insects from Chili. 
¢ Oliv., Col., III, No, 62; Lat., Gener. Crust. et Insect., II, 159; Encye. 
Méthod., article Scaure. 
