HEMIPTERA. 259 



TRUXALIS CONICUS. 

 PLATE XVII. Fig. 2. 



^Gryllus Locusta Conicus. Stall's Saut. de Pass. .PI. 23. b. 

 Fig. 8 8. 



THIS singular genus is at once known by the narrow 

 conical head, which is longer than the thorax; and 

 by the antennse, which are ensiform and prismatic., 

 as long as the head and thorax taken together, multi- 

 articulate, and inserted between the eyes at the ex- 

 tremity of the head ; the body long and narrow ; legs 

 slender and lengthened. The species, which are not 

 numerous, and by no means accurately distinguished, 

 are peculiar to warm climates, and we know scarcely 

 any thing of their manners. The figure referred to 

 above, may possibly represent a variety of T. Nasutus, 

 although Stoll, from whom we have copied it, regards 

 it as distinct. The thorax and tegmina are brownish 

 yellow, the latter with a crenated white ray along each ; 

 abdomen marked with yellow and black spots ; legs 

 brown. Fig. 3d, of the same Plate, represents a 

 species named T. brasiliensis by Drury. It is closely 

 allied to T. nasutus as well as T. conicus. The teg- 

 mina are pale fulvous, with a green stripe along the 

 centre of each, irregularly indented on the hinder edge 

 with black; wings transparent, the basal portion 

 tinged with a delicate and beautiful red. Its habitat 

 is Rio Janeiro, Brazil, &c. 



ORDER III. HEMIPTERA. 

 THIS is one of the orders provided with .a mouth 



