174 OETHOPTEEA. 



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 li; 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 casi^skin 

 still fastened to the plant. 



3. Acrydium femur-rubrumP Red-legged Locust. (Fig. 80.) 



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

 ing from the eyes along the sides 

 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. ( Calqptenus) bivittatm, Say = A. ( CcUqptenus) fetnoratus, Burm. = A. Milberti, 

 Serv. = A. jlavo-vittaium, Harris. — Uhler.] 

 [ 10 This is also a Cabpteims. — Uhlek.] 



