ISS PROCEEDINGS OF THE ACADEMY OF [Feb., 



gination. Sub-genital plate produced, rounded, with a shallow, 

 rotundate, apical emargination. Cerci short, depressed, not exceed- 

 ing the sub-genital plate in length. 



General color brownish-gray, the pronotum with a few median marks 

 of dull brown. Tegmina obscurely dusted with irregular blotches of 

 brownish. Head black, except the labrum, clypeus, mandibles and 

 inter-antennal area which are yellowish-white ; ocelli very pale amber ; 

 antennae pale brownish, except the basal joint which is yellowish- 

 white. Limbs and under surface very pale sandy brown; spines on 

 the former rich reddish-brown. 



Length of iDody 14.5 mm. ; length of tegmina 18 mm. ; greatest width 

 of tegmina 7 mm.; length of pronotum 4.5 mm.; width of pronotum 

 6.2 mm. 



9 . Unknown. 



Distribution. — This form is known only from Prescott and Tucson, 

 Ariz. 



Remarks. — This species presents some considerable variation in 

 size, and also in the intensity of the coloration, The specimens from 

 Prescott are much grayer than the Tucson specimen, which is a pale 

 straw-brown in color. 



Specimens Examined. — Three males : 

 2. Prescott, Yavapai county, Ariz. June 10, 1902. (Oslar.) (Acad. 



Nat. Sciences Phila.) 

 1. Tucson, Pima county, Ariz. June 22. (U. S. N. M.) 

 Homoeogamia apacha Saussure. 



1S93. [Homceogamia] apacha Saussure, Revue Suisse de Zoologie, I, fasc. 2, 



p. 296. [Chihuahua, Mexico.] 

 1894. Homoeogamia apacha Saussure and Zehntner, Biol. Cent.-Amer., 



Oi-thopt., I, p. 107. [State of Chihuahua, Mexico.] 



Description .—(J . Size small; form elongate ovate: surface sub- 

 coriaceous. Head wdth the interspace between the eyes equal to that 

 betw^een the ocelli; antennse not quite equal to the body in length. 

 Pronotum triangular, the posterior margin longer than the other sides ; 

 surface covered with short appressed hair, the anterior margin with 

 them much the longer. Tegmina elongate with the apex well rounded; 

 basal field comparatively broad, the nervures distinctly visible in all 

 but the extreme basal portion; nervures of the discoidal area rather 

 irregular, frequently forked. Wings with the apex sub-acuminate. 

 Supra-anal plate produced, rounded, deeply divided apically. Sub- 

 genital plate produced, apically with a broad, shallow, triangular emar- 

 gination. Cerci shghtly longer than the sub-genital plate, appressed 

 acuminate. Anterior metatarsi longer than the tibia; median meta- 



