5O FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 



rather protuberant. Midcarina of pronotmn distinct, equally developed 

 throughout. Prozona slightly inflated. Hind tibiae cherry-red. 



" Subgenital plate of male from above rounded apically, in side 

 view short, its lateral and ventral outlines nearly equal, a little ele- 

 vated apically. Furcula obsolete or represented by two small, rounded 

 protuberances. Last dorsal segment a little emarginate. Cerci long, 

 a little surpassing the supra-anal plate, two and a half times or more 

 as long as their basal breadth, nearly four times as long as their mid- 

 dle breadth, tapering rapidly on basal fourth, bent slightly upward at 

 this point, subequal or slightly expanded subapically, tapering to a 

 rounded, flattened apex. Valves of ovipositor of female short, rather 

 blunt, and usually dull-pointed. 



" Length : male, 19-22 ; female, 27-30. Hind femora: male, 12- 

 13; female, 14.5-16. Tegmina : male, 6.5-7; female, 7-8.5 mm." 



Melanoplus morsei Blatchley. 

 Mississippi: Hattiesburg. 



A single pair of this species was taken in woodland on sandy, 

 river bottom-land, in company with M. viola. These are so large that 

 measurements are appended. Length: Male, 22; female, 28. Hind 

 femora: Male, 12; female, 24mm. 



Melanoplus obovatipennis Blatchley. 



Arkansas: Blue Mountain Station; Dardanelle; Magazine Mountain; Ola; 



Rich Mountain Station; Winslow. (Young in several stages at Mena 



and Rich Mountain.) 

 Indian Territory: Howe; South McAlester. 



This is a very common species in xerophytic upland forests in 

 Arkansas, and probably much of the territory of the adjoining States, 

 ranging from Indiana to Texas. 



Melanoplus packardii Scudder. 

 Indian Territory: Wilburton. 



Texas: Amarillo; Bonita; Clarendon; Quanah; Wichita Falls. 

 Oklahoma: Cache; Mountain Park; base and summit of Mount Sheridan. 



Common among weeds and tall grass, varying greatly in amount 

 of fuscous marking on pronotum and hind femora, as well as in the 

 color of the hind tibiae (glaucous, cherry -red, yellow), apparently 

 running intofoedus. 



Melanoplus palmeri Scudder. 



Texas: Amarillo; Clarendon; Quanah. 

 Oklahoma: Mountain Park. 



A very plentiful species among the weeds and taller grasses of the 

 dry plains. Fresh specimens, with their bright blue or greenish hind 



