1914.] NATURAL SCIENCES OF PHILADELPHIA. 395 



At Homestead the species was common in the tall saw-grass of the 

 everglades and occasional over the prairie-like expanse, while at 

 Detroit it was taken in grasses on the edge of the "hammock" in 

 the pine woods. 

 Schistocerca alutacea (Harris). 



Detroit, Fla., July 12, 1912; 1 d". 



Long Key, Fla., July 13, 1912; 1 c^. 



Big Pine Key, Fla., July 6, 1912; 4 cf , 2 9 . 



Key West, Fla., July 3-7, 1912; 15 cT, 1 9 . 



All of these specimens are of the rusty-brown phase of coloration. 

 Several specimens have two darker markings weakly indicated on 

 the dorsal surfaces of the caudal femora. 



The species was found occasional at Big Pine Key on the edge of a 

 fringe of mangroves in tall bushes and low plants and not scarce 

 locally in the scrul^ on Key West. It was taken in the same situation 

 as Schistocerca obsciira at both Detroit and Long Key, at which 

 places the latter species was the more numerous. 

 Schistocerca obscura (Fabr.). 



Detroit, Fla., July 12, 1912; 3 c^. 



Key Largo, Fla., July 11, 1912; 2 d". 



Long Key, Fla., July 13, 1912; 3 9. 



The males are of the brilliant yellow striped phase of coloration, 

 while the females are rusty brown without a medio-longitudinal 

 stripe but somewhat mottled and, as in nearly all other specimens 

 of the species before us, the dorsal surfaces of the caudal femora 

 have two decidedly darker markings. 



The present species was found in the heavy "hammock" at 

 Detroit, occasional in weeds beside the railroad on Key Largo and in 

 the prevailing scrub on Long Key. 

 Schistocerca americana Sc 



Homestead, Fla., July 10, 1912; 1 cf . 



Detroit, Fla., July 12, 1912; 1 c^, 1 9 . 



Jewfish, Fla., July 11, 1912; 1 cf . 



Key Largo, Fla., July 11, 1912; 19. 



Long Key, Fla., July 13, 1912; 1 d". 



Big Pine Key, Fla., July 6, 1912; 1 9 . 



Key West, Fla., July 3-7, 1912; 7 d', 7 9 • 



Bird Key, Dry Tortugas, Fla., July 9, 1912; 1 d'. 



Garden Key, Dry Tortugas, Fla., July 8, 1912; 1 9 • 



Loggerhead Key, Dry Tortugas, Fla., July 8, 1912; 7 d', 5 9 • 



This series bears out still more clearly the fact that the size and 



