1909.] NATURAL SCIENCES OF PHILADELPHIA. 131 



elevation of about 8,800 feet. When compared with two male repre- 

 sentatives of the species from near Manitou, Colorado, it is seen to 

 differ only in the slightly more arcuate cephalic section of the median 

 carina of the pronotum. 



The only previous New Mexican record of the species was of its cap- 

 ture at Las Vegas, April 13. 



Acrydium inourvatum (Hancock). 



A pair of this species, taken at Fort Wingate, April 23 and May 8, 

 1908, by John Woodgate, have been examined. 



The only definite record from New Mexico published previous to 

 this date was from 6,500 feet elevation on the Rio Ruidoso, White 

 Mountains, Lincoln County, July 30. The species has been recorded 

 from Washington and Colorado. 



MERMIRIA Stal. 

 Mermiria bivittata (Serville). 



This widely distributed species is represented by a series of thirty-three 

 specimens, taken at the following localities : Spofford, Kinney County, 

 Texas, July 8 (one nymph) ; Johnstone, Valverde County, Texas, July 8 

 (one nymph) ; Seminole, Valverde County, Texas, July 8 (1 cT) ; El Paso, 

 July 10-11 (9 6", 2 9); Albuquerque, September 14 (12 d\ 7 9). 

 In size there is a very appreciable amount of variation, particularly 

 in the male sex, while several types of coloration are easily recognized. 

 The Albuquerque series is rather dull in color, with broad postocular 

 bars which infringe on the dorsum of the pronotum in the male; the 

 El Paso specimens represent two color types, one ochraceous with 

 prominent postocular bars infringing on the dorsum of the pronotum 

 and with a distinct or siibobsolete median occipital stripe in the males, 

 the other light greenish with the postocular bars narrower, limited to 

 the lateral lobes and sharply defined, the occiput usually without a 

 median line. The Seminole male belongs to the first type mentioned 

 from El Paso. The pale subcostal streak is present on the tegmina of 

 all the series, though varying somewhat in intensity and also in color, 

 ranging from white to bright green. The form of the fastigium and 

 of the rostrum when seen from the lateral aspect is subject to consider- 

 able variation, the latter particularly exhibiting a surprising range, from 

 a type with the facial line regular from the fastigio-facial angle to the 

 clypeal suture to one with a very evident though obtuse angle between 

 the antennal bases. The Albuquerque series was taken on cultivated 

 ground, while at El Paso the species was encountered among tornillo 



