MORGAN HEBARD 103 



the latter here described, this species represents a group of rather 

 large, dark species having very elongate tegmina in both sexes, 

 pronotum unicolorous or with narrow pale lateral margins, limbs 

 pale and male supra-anal plate produced but showing no sub- 

 chitinous area. We would call this the Apolinari Group and 

 place it after the Rufa Group in linear arrangement. 



Compared with colomhiae, known only from the male sex, 

 males of apolinari are found to be identical in every detail of 

 structure and coloration except that the limbs are proportionateh^ 

 longer and the genitalia highly distinctive. 



Tijpe. — cf ; Choachi, Cundinamarca, Colombia. Elevation, 

 5900 feet. July, 1915. From A. Maria. [Hebard Collection, 

 Type No. 444.] 



Size medium for the larger species of the genus, form slender. Interocular 

 space narrow, hardly one-third ocular depth, about three-fifths interocellar 

 width. Ocelli large, surface flattened, margins at interocellar area slightly 

 raised and narrowly convex. jMa.xillary palpi rather short, hairj^, particularly 

 fourth and fifth joints; fourth joint shorter than third, fifth (distal) joint about 

 as long as third, moderately enlarged, with ventral margin weakly convex.- 

 Tegmina comparatively narrow, with numerous (9 and 11) weakly radiating 

 discoidal sectors; dextral tegmen with diagonal channel strongly impressed and 

 conspicuous. Wings as normal for the genus -^; ulnar vein with (.5) proximal 

 incomplete branches and (2) complete distal branches. Dorsal surface of 

 abdomen with sixth and seventh segments specialized, typical for the genus.-- 

 Supra-anal plate well produced, chitinous throughout; free margins briefly 

 straight, oblique and strongly convergent to just beyond cereal bases, thence 

 very feebly convex and very feebly convergent to the broadly rounded latero- 

 caudal angles, the distal margin lietween these feebly convex but showing a 

 very weak mesal obtase-angulate emargination, the produced portion thus 



of which is bluntly rounded, the entire surface of this distal portion heavilj' 

 supplied with minute spines. 



Length of body 14; pronotum, 3.8; t^men, 16.2. Width of pronotum, 4.5 

 mm. 



Ischnoptera pampaeonas Caudell 



1913. Ischnoptera pampaeonas Caudell, Proc. U. S. Nat. Mus., xliv, p. 348. 



[ 9 , Pampaeonas River, Peru.] 



This species belongs to the Ajjolinari (!roup, though not as elongate as the 

 other species here discussed. From examination of the type we would note 

 that the supra-anal plate in that female is distinctively rotundato-produced 

 between the cerci. The pale borders of the costal margins of the tegmina are 

 particularly striking in the costal half of the marginal fields. 



21 Described in Trans. Am. P:nt. Soc, xlii, p. 339, (1916). 



22 See Mem. Am. Ent. Soc, No. 2, p. 62, (1917). 



TRANS. AM. ENT. SOC, XLV. 



