The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . her elevated in the middle, nor posteriorly prolonged, offering only lateral dilatations, and in whichthe mesothorax assumes the form of a triangular scutellum, of the ordinary size; the wing-covers arealways exposed; the posterior tibiae are more or less spined. In many, such as the following [which compose the tribe Cercopides], the thorax has the form ofan irregular hexagon, being prolonged and narrowed behind, aud terminated by a truncature fitting tothe
The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . her elevated in the middle, nor posteriorly prolonged, offering only lateral dilatations, and in whichthe mesothorax assumes the form of a triangular scutellum, of the ordinary size; the wing-covers arealways exposed; the posterior tibiae are more or less spined. In many, such as the following [which compose the tribe Cercopides], the thorax has the form ofan irregular hexagon, being prolonged and narrowed behind, aud terminated by a truncature fitting tothe base of the scutelhim, and often receiving it; this truncature being concave, or cniarginate. station, Latr., has the crown of the head transverse, the forehead being suddenly detlexed in front, and theantenna; are inserted above a line drawn between the eyes. [Brazilian insects.] In the three following subgenera the vertex is triangular and bears the ocelli, and the antennae are mserted in aline drawn between the eyes. Ledra, Fab., has the head very flat between the eyes, like a transverse clypeus ; the sides of the prothorax are. 570 INSECTA. dilated into short wing-like appendages, and the hind tibije are very compressed, and margined by a atirita, Linn., [a species not uncommon in the woods in Kentl. Ciccus, Latr., has the antennas terminated suddenly after the second joint in a seta composed of four distinctcylindric and elongated joints; the anterior extremity of the head is generally advanced. [Exotic species.]Messrs. Serville and Saint Fargeau [as well as Drs. Germar and Bunneister] have established numerous additionalgenera in this group. The Eitrymela fenestrata, Serv. and St. F., described by them as Brazilian, is a native ofNew South Wales, the description given of which by these authors being inexact, the insect possessing ocelli,although difficult to be detected. Hence this genus ought to be introduced at the genus Issus. Cercopis, Fab., Germ. (Aphroph
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Keywords: ., bookcentury1800, bookdecade1840, booksubjecta, booksubjectzoology
