1909.] NATURAL SCIENCES OF PHILADELPHIA. 469 



only by a very narrow and broken line bordering the ventral side of 

 the lateral carina?. In size there is considerable individual variation, 

 females from Eight-Mile Camp alone showing five millimeters differ- 

 ence in the length of the body. 



At Sentinel the specimens were all captured in a small area of herbs 

 beside the Merced River, while at Eight-Mile Camp and Grouse Creek 

 the specimens were taken in a forest of conifers. The insects were 

 active but heavy and easily captured, although the series taken at 

 Sentinel was secured only after long and continued search. 



The previous records of the species are from Dunsmuir, Edgewood, 

 Mt. Shasta and Sissons, Siskiyou County, Shasta County, Santa Cruz 

 Mountains, and mountains near Lake Tahoe. California. 



Melanoplus borckii (St&l). 



One male and two females of this species were taken on Mt. Tamal- 

 pais, August 23, one female at 1,500 feet elevation, the other individuals 

 at 2,100 feet. The former specimen was found along the railroad 

 track, while the latter were on the ground among huckleberry bushes. 

 The individual from 1,500 feet elevation has a most peculiar coloration, 

 the general tone of the insect being brownish black with a rather broad 

 arcuate bar of coral-red crossing the dorsal portion of the lateral lobes 

 of the pronotum. The ridge of the metathoracic episterna is yellow- 

 ish as in normally colored specimens, while the dorsal face of the 

 caudal femora is ochraceous-rufous, blackish proximad and distadwith 

 the median bar indicated on the internal half. 



The only exact localities from which this species has been recorded 

 are in the coast region of California between Sonoma County and 

 Los Angeles. 



Melanoplus tenuipennis Scurlder. 



Four adult and one nearly mature female taken between June 

 2S and July 20, 1906, at elevations of from 6,200 to 6,400 feet, on the 

 South Fork of the Santa Ana River, in the San Bernardino Mountains, 

 by Dr. Joseph Grinnell, are now before us. They agree quite well with 

 Scudder's description of the species, which is very close to M. mis- 

 sionum. The coloration is fairfy constant except for the ventral 

 extension on the prozonal lobes of the blackish postocular line, as well 

 as the variable character of the lateral face of the caudal femora. 

 The latter may be nearly solid blackish, yellowish-green darkened 

 distad and dorsad or faintly oblique fasciate. Very w T eak pregen- 

 icular annuli are present in one individual. 



The species has been recorded from Guadelupe and Los Angeles, 



