164 PROCEEDINGS OF THE ACADEMY OF [Feb., 



gense and ventral portion of the lateral lobe of the pronotum, and of 

 the caudal femora; these portions being pale ochraceous in one speci- 

 men, very dull ochraceous in several others and warm red brown in 

 another. The majority have these areas umber-brown. The red- 

 brown specimen is from Clin and all the ochraceous individuals from 

 the sandhill country. 



The previous records of this species are from Dallas and Bonita, 

 Texas; Mountain Park, Oklahoma: Mesilla Park, New Mexico, and 

 Lerdo, Durango, Mexico. 



Melanoplus atlanis (Riley). 



Three males and two females of this widely spread species were 

 taken in weedy spots in irrigated land along the Rio Grande below 

 El Paso on July 10 and 11. A single male was taken on July 14 at 

 Wootens, Otero County, New Mexico, at an elevation of about 7,000 

 feet, while a series of six females was taken in meadow-land at Cloud- 

 croft, July 14-15. 



As previously noticed by the authors 22 in regard to Arizona material 

 of this species, the series before us show uniformly greater size than 

 is true of specimens from the eastern United States, agreeing with 

 material from Colorado and northern New Mexico, in addition to that 

 previously recorded from Arizona. 



Melanoplus aridus (Scudder). 



This interesting species, which has a very considerable vertical range, 

 is represented by five males and one female taken at El Paso (July 11, 

 1 cT), in Dry Canyon, Sacramento Mountains (July 13, 1 cT), Florida 

 Mountains (July 19, 2 cT, 1 9) and at Albuquerque (September 14, 

 1 d 1 ). A pair of this species from Fort Wingate, New Mexico, taken 

 August 28 by John Woodgate, have also been examined. 



At Albuquerque the species was taken on river bottom-land, at El 

 Paso on weeds in field along river bank, while in Dry Canyon and 

 in the Florida Mountains at elevations from 5,000 to 5,500 feet in 

 the juniper and pinon zone, the species occurred among bush oaks 

 (Florida Mountains) and on mesquite (Dry Canyon). In both of the 

 latter situations adults of the species were very scarce, but a number 

 of immature specimens, presumably of this species, were noticed. 



The male from El Paso is larger and lighter in color than the other 

 specimens of that sex, while the Albuquerque individual is very dark 

 in color. The latter specimen resembles closely in general color tone 



22 Proc. Acad. Nat. Sci. Phila., 1908, p. 396. 



