56 PROCEEDIXGS OF THE ACADEMY OF [Jan., 



except that two of them are shghtly hghter in color, much as in the 

 male. This is, of course, of little consequence, being due entirely to 

 the condition of the specimen. A smaller female from Atcnas, Costa 

 Rica, is greenish-white in color, but otherwise is perfectly typical. 



Genus OREOPHOETES n. gen.12 



Allied to Heteronemia, but distinguished by the peculiar structure 

 of the apical abdominal segments and the shape of the pronotum. 



Pronotum slightly longitudinal, the anterior angles considerably 

 produced, rounded; median transverse suture very distinct; postero- 

 lateral angles depressed. Abdomen comparatively short, the basal 

 segments but slightly longitudinal; sixth dorsal segment compressed, 

 carinate ; seventh dorsal segment very slightly shorter than the sixth, 

 carinate, rather bullate apically; eighth segment slightly longer than 

 the sixth segment, slightly depressed, carinate ; ninth segment trans- 

 verse, apex with broad triangular emargination ; cerci subequal in 

 width, slightl}^ longer than the ninth dorsal segment. Sixth ventral 

 abdominal segment compressed, carinate; seventh compressed, cari- 

 nate, about half the length of the sixth ; eighth segment about half the 

 length of the seventh, compressed but not carinate; subgenital oper- 

 cule bullate, equal in length to the eighth dorsal segment, apex rotun- 

 dato-truncate, apical margin strongly reflexed, forming a yexy distinct 

 rim. Limbs elongate, unarmed. 



Type. — Bacteria peruana Saussure. 



Oreophoetes peruana (Saussure). 



1868. Bacteria Peruana Saussure, Re^^.le et Magasin de Zoologie, 2e ser., 

 XX, p. 65. [Peru.] 



One -male; Piches and Perene A'alleys, Peru, 2,000-3,000 feet. 

 (Soc. Geog. de Lima.) [U. S. N. M.] 



This species has been recorded by Saussure from the plateau of 

 Peru, beside the very broad type locality. 



Genus DYME StSl. 



1875. Dyme Stal, Recensio Orthopterorum, III, pp. 24 and 77. 



Type. — Di/me hify^ons Stal. 



Dyme bifrons StM? 



1S75. D[i/7ne] bijrons Stal, Recen.<io Orthopterorum, III, p. 77. [Peru.] 



One male; Piches and Perene Valleys, Peru, 2,000-3,000 feet. 

 (Soc. Geog. de Lima.) [U. S. N. M.] 



While this specimen is but two-thirds the size of the type male of 

 bifrons, the proportions are about the same. The eighth dorsal 



^'^ ovpso(l)<)iTnr, mounfoin nym ph. in allusion to the locality of the type species. 



