90 PROCEEDINGS OF THE ACADEMY OF [Feb., 



Single type here designated: unique cf 18 ; mouth of Big South 

 River, Larimer County, Colorado, elevation 8,000 feet, August 3; 

 C. F. Baker; Scudder Collection. 



Melanoplus ascensus (p. 196). 



Based on five males from two localities. 



Single type here designated : figured c? ; Mount Shasta, Northern 

 California, just below the forest line, September 2, [1897]; A. P. 

 Morse; Scudder Collection. 



Melanoplus validus (p. 197). ■ 



Based on forty-three males and females from three localities. 



Single type here designated : figured d 71 ; Grant's Pass, Josephine 

 County, Oregon, September 8, [1897]; A. P. Morse; Scudder Col- 

 lection. 



Melanoplus algidus (p. 199). 



Based on thirty-six pairs from the same locality. 



Single type here designated: figured d 71 ; Mary's Peak, Benton 

 County, Oregon, September 16, [1897]; A. P. Morse; Scudder 

 Collection. 



Melanoplus debilis (p. 201). 



Described from twenty males and twenty-six females from two 

 localities. 



Single .type here designated: figured d" ; Ashland, Jackson 

 County, Oregon, September 7, [1897]; A. P. Morse; Scudder Col- 

 lection. 



Melanoplus calidus (p. 203). 



Described from a pair from the same locality. 



Single type here designated: unique cf ; Oilman's Ranch, Eagle 

 Creek, White Mountains, Lincoln County, New Mexico, elevation 

 7,000 feet, August 10-16, [1897]; E. O. Wooton; Morse Collection. 



V. "Short Studies of North American Tryxalin^e," by Samuel 

 Hubbard Scudder. (Proc. American Academy of Arts and 

 Sciences, Vol. XXXV, pp. 41-57, 1899.) 



The lectotypes here chosen of all the new species described in the 

 paper before us are in the Scudder Collection and have been examined 

 by the authors. 



18 The female of this species has been figured, but the importance of the other 

 sex in this genus makes it advisable to choose the unique unfigured male as the 

 lecto*ype. 



