162 



PROCEEDINGS OF THE ACADEMY OF 



[Feb., 



of the caudal femora are more or less distinct in all but one individual 

 which has them obsolete. 



In size the specimens are decidedly larger than individuals from 

 Colorado and Nebraska, as the following measurements show: 



The previous records of this species from New Mexico are from 

 Belen, Valencia County, Sabinal, Socorro County, Las Cruces, Donna 

 Ana County and Chaves, McKinley County. 



Melanoplus herbaceus Bruner. 



This variable species is represented by a series of forty-nine males 

 and thirty-three females taken at El Paso, Albuquerque and Alamo- 

 gordo. At El Paso it was found in a variety of habitats : on greasewood 

 on the slopes of the Franklin Mountains (July 9, 1 d\ 2 9 ), on grease- 

 wood on the mesa and at the edge of the same (July 10 and 11, 4 d\ 

 1 9 ), on mesquite growing on the sandhills east of the city (July 17, 

 4 d\ 2 9 ), and on irrigated land along the Rio Grande below the city 

 (July 10 and 11, 38 d\ 25 9 ). In the sandhill region the species was 

 very wary and usually flew into the most inaccessible portions of the 

 thickets of mesquite, while along the river it was plentiful but equally 

 hard to capture. Two males and two females were secured in culti- 

 vated land at Albuquerque, September 14, while a single female was 

 attracted to light at Alamogordo, July 12. 



In size there is a considerable amount of individual variation, as 

 the following measurements of extremes of the series from along the 

 Rio Grande at El Paso will show: 



d 1 



c? 



The structure of the male cerci and of the furcula exhibits a con- 

 siderable amount of variation in this species, about half of the males 

 examined showing at least some slight approach to the form called 



