472 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Melanoplus ligneolus Scudder. 



Two males and a single female of this species were taken at 2,100 

 feet elevation on Mt. Tamalpais, among low bushes. 



Both this and the preceding species were extremely scarce. 

 The previous records are from Berkeley and Benicia, California. 



Melanoplus cinereus Scudder. 



An interesting series of thirty-three specimens of this species from 

 the following localities is contained in the collection : Sentinel, August 

 31, one male; Pasadena, August 1, nine males; Altadena, August 8, 

 one male, one female; Rubio Canyon, 2,200 to 3,000 feet, August 8, 

 three males; Alamitos Bay, July 31, four males, one female; Coronado 

 and South Coronado Beach, August 16, five males, one female; Tia 

 Juana, August 16, three males, one female; Santa Catalina Island, 

 August 7, two males, one female. 



The series exhibits a surprising amount of variation in size, this 

 being to a great extent individual, but in a measure apparently due to 

 geographic factors. Average males from the localities represented 

 measure as follows: 



Sentinel, . 



Pasadena, 



Altadena, 



Rubio Canyon, 



Alamitos Bay, 



Coronado Beach, 



Tia Juana, 



Santa Catalina Island 



16.5 " 13.5 " 10 



The cerci and furcula show a number of modifications of the essential 

 type of the species, but none of the specimens are typical of the closely 

 related M. cyanipes, although this is approached by certain individuals. 

 The coloration varies considerably, the Sentinel, Pasadena, Altadena 

 and Rubio Canyon series being darker than the Coronado Beach and 

 Tia Juana specimens, while the Alamitos Bay and Santa Catalina 

 Island individuals are nearly intermediate, although nearer the dark 

 type. The Tia Juana and Coronado Beach females are very pale, 

 as is also the case with one male from the latter locality. 



This is essentially a species of the drier sections, and although a 

 common species it was never found to be gregarious. 



Melanoplus oomplanatipes Scudder. 



Three males and one female from Cottonwood, September 9, and 



