258 



AN INTRODUCTION TO ENTOMOLOGY 



ing from the base to beyond the middle; this often includes 



two dusky spots on the 

 edge. In the other vari- 

 ety, the ground color is 

 dusky brown. Intergrades 

 occur, in which the head 

 and thorax are of a reddish 

 velvety brown. The length 

 of the body is 17-32 mm. 



The Carolina locust, 

 Dissostelra Carolina. — Not- 

 withstanding its specific 

 name, this species is com- 

 mon throughout the United 

 States and Canada. It is 

 a large species; the length 

 of the body of the males is 

 24-33 mm., of the females 

 33-40 mm. It abounds in 

 highways and in barren 



,. ,^ ^ . places. It takes flight 



Fig. 287.-Z)z5.«.tora.aro/.na. (From Lugger.) ^^^^.^^^ ^^^ ^j^^ ^^^^^ 



stridulate while in the air. The color of this insect varies greatly, 

 simulating that of the soil upon which 

 it is foimd. It is usually of a pale yel- 

 lowish or reddish bro^vn, with small 

 dusky spots. The hind wings are black, 

 with a broad yellow margin which is 

 covered with dusky spots at the tip 

 (Fig. 287). 



Boll's locust, Spharagemon bolli. — 

 This species is widely distributed in the 

 United States and southern Ontario 

 east of the Rocky Moimtains. The 

 length of the body of the male is 20-28 

 mm., of the female 27-36 mm. The 

 hind wings are pale greenish yellow at 

 the base and are crossed by a dark 

 band; the apical third is transparent 

 smoky in color (Fig. 288). 



The coral-winged locust, Hipptscus 

 apiculdtus. — This is one of the larger Y\g. 2^^. Spharagemon bolli. 

 of our band-winged locusts (Fig. 289). (From Lugger.) 

 The length of the body of the male is 



25-30 mm., of the female 36-44 mm. The general color is ash-brown. 

 The basal portion of the hind wings is bright coral-red, rarely yellow; 

 this part is bordered without by a dark band. This species is widely 

 distributed east of the Rocky Mountains. 



