53S INSECTA. 



ginous circle, which induced Geoffroy to term it the Leptureaux 

 yeux tie paon. 



L. textor; Cerambyx textor, L.; Oliv., lb., vi, 39. Another 

 species very common in Europe, but its thorax is armed on each 

 side with a pointed tubercle. It is an inch long, of an obscure 

 black, with short antennse and granulated elytra. This Insect, 

 with some others, evidently leads to the apterous species, all 

 peculiar to Europe and those parts of Asia which border on it, 

 and of which the larvae probably feed on the roots of plants. 

 These species form the genus Dorcadion of Dalman, which is 

 adopted by most entomologists. The antennae are generally 

 shorter than the body, and are composed of obconical joints, 

 which give them a nodulous appearance; their abdomen is a 

 sort of oval, or almost triangular. 



M. Megerle has formed the genus Parmena, with certain" 

 small species that appear to me to be removed from the others 

 only by the antennae, which are longer than the body, and as 

 their joints are more elongated, they become rather cylindri- 

 cal than conical. According to this, we would be obliged to 

 connect others with them, much larger, but presenting the same 

 characters, such as the tristis, lugubris, and funesta. 



Among those with short antennae, or the Dorcadions properly 

 so called, there is one very common in Europe, but almost ex- 

 clusively confined to calcareous localities, or to such as border 

 on that kind of soil called the L. fullginalor; Cerambyx fuligi- 

 nator, L. ; Oliv., lb. X, 21. It is about six lines in length; 

 black; elytra sometimes cinereous, and sometimes blackish- 

 brown, each, in both cases, presenting three white lines, one 

 along the suture, a second along the exterior margin, and a 

 third between the two first, but not extending to their posterior 

 extremity. Several other species are found in Germany and the 

 south of Russia(l). 

 In the other Lamiariae, the thorax is destitute of lateral tubercles 

 or spines, and is cylindrical; the body is always elongated, and in 

 some almost linear. They compose the genus 



Saperda, Fab. 



That which he calls Gnoma, restricting it to certain species from 

 Java, Sumatra, New Holland, &C. in the direction of the -head, and 

 in the parts of the mouth, resembles the Lamiae; but the thorax is 



(1) See Schccnh., Synon. Insect., I, 3, p. 307; and the Catalogue, &c., of Count 

 Dejean, both for this genus and Parmena. 



