FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 49 



Melanoplus impudicus Scudder. 

 Georgia: Sand Mountain. 



Alabama: Cheaha Mountain; Lookout Mountain. 

 Mississippi: Meridian. 



Arkansas: Blue Mountain Station; Eagleton; Mena. 

 Indian Territory: Caddo; Howe. 



A widely distributed but somewhat local species frequenting the 

 grasses of dry, open woodlands and sometimes also in fields of sandy 

 or stony soil. 



Melanoplus keeleri Thomas. 



Arkansas: Blue Mountain Station; Fayetteville ; Magazine Mountain, 2,000 



to 2,800 feet; Ola; Winslow. 

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



Wewoka; Wilburton. 

 Texas: Bonita; Denison. 

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



As remarked by McNeill (Psyche, vin, 366) it seems to be impos- 

 sible to draw any satisfactory line between the forms known as keeleri, 

 deleter, and luridus in reference to Arkansas material. Over 130 ex- 

 amples of this species were secured, including several series of a dozen 

 to twenty specimens from the same locality. These vary greatly in 

 the form of the cerci among individuals from the same place. In gen- 

 eral, it may be said that the more southern examples approach more 

 nearly to the keeleri and deleter type, and the more northern to the 

 luridus pattern. Elucidation of the distribution and relation of these 

 forms will require careful and systematic collecting with direct refer- 

 ence to this particular problem. 



This is a very common species in and near woodlands, apparently 

 not occurring on the treeless plains. 



Melanoplus lakinus Scudder. 

 Texas: Amarillo. 



About a dozen short-winged examples were secured from tall grass 

 and weeds. 



Melanoplus latens Morse. 



Melanoplus latens. Psyche, xin, 120, 1906. 



Indian Territory: Caddo Hill. 



Six males, seven females. 



To this species I refer also three females from Bonita, Texas; 

 Howe, Indian Territory; and Magazine Mountain, Arkansas. 



"A short- winged, red-legged species having much the habitus of 

 M. scudderi and occurring with it in thickets and woodlands. Teg- 

 mina acutely pointed, equaling head and pronotum. Vertex of head 



