136 PROCEEDINGS OF THE ACADEMY OF [Feb., 



The majority of the Aden series is more grayish ochraceous than the 

 type, the remainder being very similar to the Railroad Pass individual. 

 The El Paso male is greenish yellow dorsad, while the female from the 

 same locality is decidedly green with the tegmina roseate. 



The only localities from which the species is known are those recorded 

 here and the type locality — Railroad Pass, Arizona. 



SYRBULA Stal. 

 Syrbula admirabilis (Uhler). 



A single male taken July 8 at Johnstone, Valverde County, Texas, 

 belongs to this species. 



Syrbula fuscovittata Thomas. 



A mature male and an immature female taken in Dry Canyon, 

 Sacramento Mountains, July 13, and an adult female taken at 4,500 

 feet elevation in the Franklin Mountains, July 9, are referable to this 

 species. Both adult specimens are in the brown phase of coloration. 

 The male from Dry Canyon was taken at an elevation of about 5,000 

 feet, in the lower portion of the juniper and pinon zone. 



B00TETTIX Brunei-. 

 Bodtettix argentatus Brunei-. 



This interesting grasshopper, which seems never to leave the branches 

 of the greasewood (Covillea tridentata), was taken, July 9 to 11, at a 

 number of points in the greasewood belt on the mesa northeast of El 

 Paso and on the lower slopes of the Franklin Mountains. The series 

 from the El Pasan region, numbering twenty-four males, fourteen 

 females and eight nymphs, and two females and one nymph taken 

 July 13 in the greasewood of the lower portion of Dry Canyon, Sacra- 

 mento Mountains (elevation 4,800-4,900 feet), and the growth of the 

 same shrub on the alluvial slope at the mouth of the same canyon, 

 exhibits a very considerable amount of variation in size, the extremes 

 of each sex being as follows : 



In color numerous little variations are noticeable, none, however, 

 important enough to call for special note. In all the series the tegmina 

 are more or less strongly maculate, although the markings are limited 

 in the majority of the specimens to the vicinity of the anal area. The 



