42 FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 



ACRIDHNAE. 



Dictyophorus rcticulatus Thunberg. 



Georgia: (Trenton, juv. 4, 5). 



Alabama: (Turnipseed's Ranch, near Cheaha Mountain, juv. 5). 



Mississippi: Hattiesburg. 



Louisiana: Milneburg. 



These elephantine locusts, locally known as ' ' devil -horses, ' ' were 

 found in numbers resting upon the tall, coarse weeds at the side of the 

 road through the swamp at Milneburg; at Hattiesburg a single adult 

 was found in bottomland forest ; and several immature specimens were 

 taken among weeds in a mowing-lot at Trenton, Georgia, at an eleva- 

 tion of 730 feet, much farther northward than had been expected. 



When disturbed the tegmina are often elevated and the brilliant 

 carmine wings rapidly vibrated, producing a buzzing noise. If taken 

 in hand, a disagreeable, dark-brown, frothy liquid is effused with a 

 hissing sound from the mesothoracic spiracles, which probably is 

 repugnatory in function. 



Leptysma marginicollis Serville. 



Mississippi: Biloxi; Gulfport; (Nugent, juv. 2, 3, 4). 

 Louisiana: (Buras, juv. 4, 5) ; Milneburg. 

 Texas: (Wichita Falls, juv. i, 2, 3, 5). 



Common locally in the rush and sedge plant-societies of the 

 margins of streams and ponds. 



Schistocerca albolineata Thomas. 



Texas: Wichita Falls. 



A single pair among tall grass and shrubbery on the bank of a 

 slough. 



Schistoccrca alutacea Harris. 

 Alabama: Cheaha Mountain. 

 Mississippi: Gulfport. 

 Arkansas: Eagleton; Fayetteville ; Mena; Rich Mountain Station. 



Of this species or form a few scattering examples were taken (see 

 remarks under rubigiiwsa). 



Schistoccrca rubiginosa Harris-Scudder. 

 Mississippi: Nugent. 

 Arkansas: Magazine Mountain. 

 Indian Territory: Caddo. 

 Texas: Bonita. 

 Oklahoma: Shawnee. 



