1903.] NATURAL SCIENCES OF PHILADELPHIA. 189 



tarsi not more than two-thirds the length of the tibia; posterior meta- 

 tarsi sUghtly more than half the length of the tibia. 



General color wood-brown, marked on the pronotum with a darker 

 shade of same color; hair on the pronotum red-brown. Tegmina 

 obscurely mottled with general tint, the lighter spots being sub-hyaline, 

 except in the anal and basal section of the discoidal field. Color of 

 the imder surface and limbs pale wood-brown, darkest in the anal region 

 and on the spines of the limbs. 



Length of body 11.7-15.2 mm.; length of tegmina 14-18; greatest 

 width of tegmina 6-7; length of pronotum 3.7-4.5; width of pronotum 

 5.2-6.5. 



9. "(Nymph?) Rufo-ferrugineous, apterous, head and feet testa- 

 ceous. Supra-anal plate transverse, margin Uttle arcuate, slightly 

 incised. Cerci tuberculiform. Last ventral segment flat, rounded, 

 both sides sinuate, produced in the centre. Length 13; pronotum 

 4.6; width of pronotum 7 millim." 



Distribution. — The series examined includes specimens from Phoenix, 

 Tempe and Fort Grant, Ariz. These with the type locality, Chihuahua, 

 cover the known distribution of the species. 



Remarks. — The most striking variation in the specimens examined 

 appears to be that of size. The coloration appears, from the speci- 

 mens at hand, to be quite constant. 



Specimens Examined. — Five males : 

 2. Fort Grant, Graham county, Ariz. July 17 and 22. (Hubbard.) 



(U. S. N. M.) 

 2. Phoenix, Maricopa county, Ariz. April 29, 1902. (Oslar.) (Acad. 



Nat. Sciences Phila.) 

 1. Tempe, Maricopa county, Ariz. April 26, 1902. (Oslar.) (Acad. 

 Nat. Sciences Phila.) 



Subgenus EKEMOBLATTA n. subg. 



Subgeneric Characters. — c?. Size small. Vertex of the head with a 

 distinct angular transverse ridge. Tegmina with the nervures in the 

 anal field very distinct. Median and posterior tibiae with seven apical 

 spines. Supra-anal plate very broadly emarginate apically. 



9 . Unknown. 



Type. — Homceogamia subdiaphana Scudder. 



Homoeogamia subdiaphana Scudder. 



1902. Homoeogamia subdiaphana Scudder, Proc. Davenport Acad. Sci., IX, 



p. 19. [Las Cruces, N. M.] 

 1902. Hornoeogamia subdiaphana Rehn, Proc. Acad. Nat. Sciences, Phila., 

 LIV (1902), p. 717. [Alamogordo and HighroUs, N. M.] 



c?. Size small; form slender and elongate. Head with the inter- 



