130 GENUS CERATINOPTERA (oRTHOPTERA) 



strongly convex, with two stout briefly separated styles deeply 

 inserted mesad on the distal margin, the dextral twice as long 

 and more deeply inserted than the sinistral, both with very 

 minute teeth on their dorsal surfaces. The female subgenital 

 plate is large, with distal margin broadly convex, with a decided 

 median emargination the sides of which are broadly convex, thus 

 forming toward its apex a brief longitudinal cleft. Limbs similar 

 to nahua (see generic descriptiori). 



Measurements (in millimeters) 



■i, o "^ 



S J? . f- 



ft 



Xi 



o. 



>- ° ° s o a ° 



O Iz; H^ ^q ^ i_l .rs 



Contamano, Peru (1) 8.3 2.6 2.9 8.1 \5 



Trinidad (1) 8.7 2.7 3.1 8.3 2.8 



9 

 Caparo, Trinidad (1) 8.9 2.6 3 8.4 2.7 



It is evident from Brunner's description that the types of the 

 species are shghtly larger than the specimens before us, while 

 the males have the tegmina distinctly reduced ("length 6 mm.")- 

 So much size and tegminal variation occurs in nahua that we 

 attribute the difference here found to similar individual variation. 



General color of head and pronotum very deep shining blackish 

 brown, the pronotum with a large meso-caudal marking of 

 light buff (see fig. 2) ; in the male the lateral margins of the pro- 

 notum are very narrowly and very slightly paler than the general . 

 color. Tegmina clear shining blackish brown, darkest proximad; 

 excepting third of dextral tegmen concealed when at rest which, 

 like the wings, is hyaline, transparent, the veins giving a whitish 

 cast. Maxillary palpi and limbs buft'y, ventral surface of thorax 

 dark brown. Abdomen above and below ochraceous buff, very 

 broadly suffused laterad and distad with blackish brown. 



Specimens Examined: 5; 4 males and 1 female. 



Olas de Moka, Solola, Guatemala, 3000 feet, IX, 1908, (G. P. Englchardt), 

 Id^, [U. S. N. M.]. 



Cacao, Trece Aguas, Alta Vera Paz, Guatemala, III, 1907, Icf, 

 [U. S. N. M.]. 



Trinidad, (H. D. Chipman), I d^, type of P.(?) binotata Bruncr, [Bruner 

 Cln.]. 



Caparo, Trinidad, VI, 1913, (S. M. Klages), 1 9 , [A. N. S. P.]. 



Contamano, Rio Ucayali, Peru, X to XII, 1912, Id', [A. N. S. P.]. 



