FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 51 



tibiae and red femora, are very attractive. The types of palmeri in the 

 Scudder collection are evidently alcoholic material from which all 

 brilliancy of color had departed when described. I have little doubt 

 that the M. sanguineus of Bruner (Colo. Agric. Coll. Bull. 94, p. 63) 

 is identical with this species. 



Melanoplus plebejus stal. 



Indian Territory: Cadclo; Wilburton. 

 Texas: Wichita Falls. 



This, while a campestrian species, is practically a thicket-dweller, 

 living among the denser growth of grasses and other herbage in moist 

 prairie meadows. 



Melanoplus propinquus McNeill-Scudder. 

 Mississippi: Gulf port. 



Common in grassy areas of the Gulf Strip of the Lower Austral 

 coast plain. 



Melanoplus regalis Dodge. 

 Texas: Amarillo ; Quanah. 



This handsome species is singularly like Aeohplus regalis in ap- 

 pearance, nearly equaling it in size, closely resembling it in color and 

 general form, but at once distinguished from it by the non-tuberculate 

 subgenital plate of the male, the dull-pointed valves of the ovipositor 

 of the female, and the cherry-red coloring of the lower sulcus and 

 inner face of the hind femora. 



Three examples of each sex were secured among weeds. 



Melanoplus robustus Scudder. 



Arkansas: Blue Mountain Station; Dardanelle; DeQueen; Eagleton; Maga- 

 zine Mountain ; Mena ; Ola ; Rich Mountain ; Rich Mountain Station ; 

 Winslow. 



Indian Territory: Caddo Hill; Haileyville; Howe; South McAlester. 



Texas: Denison. 



Oklahoma: Cache; base and summit of Mount Sheridan. 



This robust species is a characteristic inhabitant of woodlands, 

 usually xerophytic, where it hops about among the underbrush with 

 vigorous leaps (see pi. 5, fig. 2). It is very variable in wing-length, 

 but not dimorphic, the tegmina of the male ranging from 12 to 21 mm., 

 of the female from 13 to 24 mm.; and also in the color of the hind 

 tibiae, the distal two-fifths of which range from pale yellow to bright 

 coral-red. Frequently, especially in examples with yellow tibiae, all 

 infuscation distad of the basal pale annulus is lacking except on the 

 tips of the spines. 



