36 NORTH AMERICAN ACRIDIIDiE. 



Florida : Carrabelle, Aug. 9 ; Tallahassee, Aug. 8. 



Tennessee : Johnson City, Aug. 27 ; Lookout Mountain, Aug. 23 ; Morris- 

 town, Aug. 27 ; Roan Mountain Station, Sept. 3. 



Austral and Transition zones. A common and very widely- 

 distributed species, in old fields, pastures, and open wood-lands on 

 dry soil. 



Spharagemon saxatile planum Morse. 



Spharagemon saxatile planum. Psyche, XI, 13 (1904). 



" Differing noticeably from the specific type in the structure of 

 the pronotum, the midcarina, although of the same general form 

 and profile, being lower throughout, and the disk of the metazone 

 more nearly and constantly plane, instead of arched in longisection 

 as is commonly the case in the type, especially in the female. Hind 

 tibiae with an increased amount of infuscation distad of the pale 

 basal annulus, in this respect sometimes approaching bolli in degree. 

 The general color of the specimens at hand is a purplish red in con- 

 sonance with the tint of the soil of the habitat ; the pale X mark of 

 the pronotal disk is lacking, and even the transverse fuscous bands 

 of the tegmina are indistinct." 



Virginia : Wytheville, Sept. 4, 5, 2300 feet. 



Transition zone. The specific type saxatile is a characteristic 

 rock-inhabiting locust of the Northeastern States, very rarely being 

 found away from ledges. The form here described was plentiful 

 locally on a thinly grassed, gravelly hill-slope, accompanied by its 

 congener bolli, and exactly matching in coloration the purplish red, 

 iron-bearing fragments of rock and soil on which it made its home. 

 The difference in coloration from saxatile of the Northern States is 

 very great, the latter being deep blackish-fuscous, marbled with gray 

 and white. 



Mestobregma thomasi Caudell. 



Georgia : Sand Mountain, Aug. 25 ; Trenton, Aug. 25. 



Tennessee : Chattanooga, Aug. 24. 



Upper Austral zone of Central States. This species was found 

 locally common in sandy fields near Chattanooga, and was also 

 taken on rocky ledges at Trenton and near Flat Rock on Sand 

 Mountain plateau, its coloration varying according to its environ- 

 ment from nearly black to ashen or dust-color. It flies freely on a 

 warm day, but weakly, and is easily captured. 



Scirtetica picta Scudd. 



North Carolina : Eure, July 6. 



Florida : Carrabelle, Aug. 9 ; Fort Barrancas, Aug. 3, (juv. 4, 5) ; Live 

 Oak, Aug. 10, (juv. 5); Warrington, Aug. 4. 



