174 OBTHOPTERA. 



most shanks and feet blood-red, the spines tipped with black ; 

 wings transparent, faintly tinged with pale green, and netted 

 with greenish-brown lines. The abdomen of the male is 

 very obtuse and curves upwards at the end, and is furnished, 

 on each side of the tip, with a rather large oblong square 

 appendage, which has a little projecting angle in the middle 

 of the lower side. Length, to tip of the abdomen, from 1 

 inch to l ; expands from l inch to 2 inches. 



This and the following species probably belong to the 

 subgenus Oxya of Serville. The yellow-striped locust is 

 one of our most common insects. It is readily known by its 

 color, and by the two yellowish lines on the thorax, extend- 

 ing, when the insect acquires wings, along the inner margin 

 of the wing-covers. It is very troublesome in gardens, 

 climbing upon the stems of beans, peas, and flowers, devour- 

 ing the leaves and petals, and defiling them with its excre- 

 ment. The young begin to appear in June, and they come 

 to their growth and acquire their wings by the first of Au- 

 gust. When about to moult, like other locusts, they cling 

 to the stem of some plant, till the skin bursts and the insect 

 withdraws its body and legs from it, and leaves the cast-skin 

 still fastened to the plant. 



3. Acrydiumfemur-rubrum. Red-legged Locust (Fig. 80.) 



Grizzled with dirty olive and brown ; a black spot extend- 

 ing from the eyes along the sides 



Fic 80 



of the thorax ; an oblique yellow 

 line on each side of the body be- 

 neath the wings ; a row of dusky 

 brown spots along the middle of 

 the wing-covers ; and the hindmost 

 shanks and feet blood-red, with black spines. The wings 



western sections of the Union, consists only in the color of the legs and greater 

 depth of tint upon the thorax, &c. In the latter, the synonymy stands as follows : 

 A. ( Caloptenus) bivittatvs, Say = A. ( Caloptenus) fenioratus, Burm. = A. Milberti, 

 Serv. = A. flavo-vittatum. Harris. UHLEK.] 

 [ 10 This is also a Caloptenus. UHLEK.] 



