GAY-WINGED LOCUSTS. 



usually greenish ground-color; a reddish brown stripe, 

 bordered with black, extends from top of head to back of 

 pronotum. 



Hind tibia with not over 15 spines on outer margin. . . 3. 



3. Antennae about, or more than, 1.5 times as long as 

 head and pronotum together; a median ridge on upper 

 front of head. Chlccaltis. C. conspersa has yellowish or 

 brown general color; length, nearly I in.; front wings of 

 female only about half as long as abdomen. Eggs are 

 laid in soft wood. 



Antennas shorter; no such distinct ridge 4. 



4. Upper margins of sides of pronotum longer than sides 

 are wide, and parallel. Dichromorpha. The general color 

 of the male viridis is dull brown and the length is about 

 .7 in.; the female is either brown or bright green and at 

 least I in. long; front wings usually not as long as the 

 abdomen. 



Sides of pronotum relatively broader and top margins 

 squeezed together in the middle Orphulella. 



5. Median ridge of pronotum rather high and sharp, cut 

 plainly in front of middle Mecostethus. 



Median ridge not so 6. 



6. Apical spurs on inner side of hind tibias equal in length; 

 ridges on sides of top of pronotum distinct throughout. 

 Chorthippus. Our common species is curtipennis. 



Lower apical spur about twice as long as the upper; 

 side-ridges distinct only in the middle. Ageneotettix. 

 Not common east of the Mississippi. 



These differ from the preceding sub- 

 (Edipodmae . 



family in not having, as a rule, such receding 

 chins; some of them differ from other grasshoppers in 

 having parti-colored hind wings, and some in also having 

 crests on their pronotums (see Plate XVIII). They are 

 the ones which make a noise when they fly and sometimes 

 a male will hover in the air above a female and rattle away 

 for dear life, meanwhile showing off his gay hind wings. 

 When at rest on the ground, with the hind wings covered, 

 they are very difficult to see because of their protective 

 coloration. Dissosteira Carolina (Plate XIX) is one of 

 the commonest species; the color of its tcgmina varies 



69 



