1909.] NATURAL SCIENCES OP PHILADELPHIA. 471 



on August 8, one at an elevation of 4,400 feet on Mt. Lowe, the other 

 in Rubio Canyon, between 2,200 and 3,000 feet. 



The specimens, while quite similar in coloration except for a rufous 

 tone to the lighter color of the large individual, show considerable 

 individual variation in size, the measurements being as follows: 



Length of Length of Length of Length of 

 body. pronotum. tegmen. caudal femur. 



mm. mm. mm. mm. 



Rubio Canyon, . ... 18.5 4 3.5 10 



Mt. Lowe, 22 5.5 4.5 12 



The previous records of this species are from localities along the 

 coast and coastal valleys of southern California, from between Luis 

 Obispo and San Simeon Bay south to San Diego County and at least 

 as far east as Claremont. The species has also been recorded from 

 San Bernardino County, but from which portion of that quite diverse 

 area is not mentioned. 



In habitat and actions these specimens greatly resembled Melano- 

 plus missionum. 



Melanoplus ablutus Scudder. 



A single male of this species was taken at El Portal, August 30, 

 at an elevation of 2,050 feet on a steep mountain side, among dry 

 leaves, under manzanita and other bushes. The specimen was taken 

 at daybreak, and no other Orthoptera were noted at that time. 



The antennae of this individual are quite short, not quite four milli- 

 meters long and slightly less than half the length of the caudal femur, 

 the tips being perfect and unbroken. In the type measurements 

 Scudder gives the length of these appendages as six and one-half 

 millimeters or more than two-thirds the femoral length. In every 

 other character the specimen in hand is perfectly typical. The type 

 locality is Wawona, Mariposa County, California. 

 Melanoplus nanus Scudder. 



One male and two females of this species, taken at Mill Valley, 

 August 23, are in the series. They are closely related to the following 

 species and require considerable study for their proper separation. 

 The shorter and apically broader cerci and more divergent furcula are 

 of the greatest comparative value. 



The species was found on a dry grassy hillside. 



The original and only previously published records of the species 

 are from Mill Valley, San Francisco, Berkeley and^Baden, San Mateo 

 County, California. 



