ORTHOPTEEA. 141 



brown stripe on the top of the head, extending to the tip of 

 the little smooth and blunt projection between the antenna?, 

 and a broader brown stripe bounded on each side by deeper 

 brown on the top of the thorax. The antenna?, knees, and 

 shanks are green, faintly tinted with brown, and the feet are 

 dusky. When come to maturity, they measure three quarters 

 of an inch or more, from the forehead to the end of the body, 

 or one inch to the ends of the wing-covers. The latter are 

 abruptly narrowed in the middle, and taper thence to the tip, 

 which, however, is rounded and extends as far back as the 

 wings. The color of the wing-covers is green, but they are 

 faintly tinged with brown on the overlapping portion, and have 

 the delicacy and semi-transparency of the skin of an onion. 

 The shrilling organs in the males consist of a transparent 

 glassy spot, bounded and traversed by strong veins, in the 

 middle of the overlapping portion of each wing-cover, which 

 part is proportionally much larger and longer than in the other 

 grasshoppers ; but the transparent spot is rather smaller on the 

 left than on the right \\'ing-cover. The male is furthermore 

 distinguished by having two small black spots or short dashes, 

 one behind the other, on each wing-cover, on the outside of the 

 transparent spot. The wings are green on their front margins, 

 transparent, and reflecting a faint pink color behind. The 

 piercer of the female is cimeter-shaped, being curved, and 

 pointed at the end, and is about three tenths of an inch long. 

 The hindmost thighs, in both sexes, are smooth and not spinous 

 beneath ; there are two little spines in the middle of the breast ; 

 and the antennae are very long and slender, and extend, when 

 turned back, considerably beyond the end of the hind legs. 

 During the evening, and even at other times in shady places, 

 the males make a sharp clicking noise, somewhat like that 

 produced by snapping the point of a pen against the thumb- 

 nail, but much louder. This kind of grasshopper very much 

 resembles the Locusta agilis of De Geer, which is found in 

 Pennsylvania and the Southern States, but does not inhabit 

 Massachusetts, and is distinguished from our species by having 

 the wings nearly one tenth of an inch longer than the wing- 

 covers, the antennse excessively long (two inches or more), and 



