164 ORTHOPTEKA. 



the head whitish, or only faintly tinted with green, and the 

 legs and abdomen are pale brownish-green. A little tooth 



projects downwards from the under side of the conical part 

 of the head, which extends between the antennae, and imme- 

 diately before this little tooth is a black line bent backwards 

 on each side like the letter U. The hindmost thighs have 

 five or six exceedingly minute spines on the inner ridge of 

 the under side. The shrilling organ of the male on the left 

 wing-cover is green and opaque, but that on the right has 

 a space in the middle that is transparent like glass. The 

 piercer of the female is above an inch long, very slightly 

 bent near the body, and is perfectly straight from thence to 

 the tip, which ends in a point. The color of this grasshop- 

 per is very apt to change after death to a dirty brown. It 

 comes very near to the dissimilis described by M. Serville, 

 but appears to be a different species.* 



* In the collection belonging to the Boston Society of Natural History, there is 

 an insect which I suppose to be the Conocephalus dissimilis of Serville. It was 

 taken in North Carolina by Professor Hentz. The conical projection of the head 

 is shorter and more obtuse than in the ensiger, the sides of the thorax are brown- 

 ish, the hindmost thighs have a double row of black dots on the under side, and 

 the spines on this part are more numerous and rather larger. Professor Hentz has 

 sent to me from Alabama another species distinct from both of these, about the 

 same in length, but considerably broader. The conical part of the head between 

 the eyes is broader, flattened above, and, as well as the thorax, rough like shagreen. 

 There is a projecting tubercle beneath, but the curved black line is wanting, and 

 the tip of the cone has a minute point abruptly bent downwards, and forming a 

 hook. The sides of the thorax are bent down suddenly so as to make an angular 

 ridge on each side of the middle. The wing-covers are dotted with black around 

 their edges, and have also an irregular row of larger and more distinct spots along 



