1895. PROCEEDINGS OF TEE NATIONAL MUSEUM. 123 



denticles on the basal side of the thickening, apex acute. Inferior 

 appendage about one-eighth shorter than the sai)eriors, dark brown; 

 viewed from below, triangular; apex slender, about one-tenth as wide 

 as base, moderately acute, extreme tip upcurved. 



Genitalia of 2 not prominent. Anterior lamina rather tlat, a small 

 tubercle and a depression on each side; apex rounded, entire. Hamule 

 projecting farthest, its apex bifid, so that the anterior (internal) branch 

 forms a distinct, rounded, and somewhat slender hook ; posterior branch 

 not developed. Genital lobe rather narrow, not projecting as far as 

 lamina or hamule. 



Wings hyaline, reticulation blackish, Pterostigma dark brown, trap- 

 ezoidal, its external side forming a more acute angle with the costa 

 than the internal. Membranule pale-brownish. Sectors of the arculus 

 distinctly stalked; no hypertrigonals; one median cross vein ^ placed 

 distinctly nearer the base than the first antecubital; discoidal triangles 

 free (with one cross vein in the right front wing of one male), that of 

 the front wing placed a short distance (1,5 mm.) beyond the apex 

 of that of the hind wing; nodal sector distinctly waved beyond the 

 middle. Front wings with 10-11 antecubitals, the last one not contin- 

 uous; 9-10 postcubitals; internal triangle of one 

 or two cells, hardly distinct from adjacent cells; 

 two or three posttriangular cells; then two rows. 

 Hind wings with (1-7 antecubitals, 11-12 [)ost- 

 cubitals,no internal triangle, inner side of discoidal rig. 3. 



triangle slightly nearer the base than the pro- schizonyx h-ctifera, 

 longation of the arculus; two or three rows of post- ^ '^' 



. • 1 n j_ n j_t 1 • 1 *j_ T J Side view of genitalia of second ab- 



triangular cells; sectors of the truxngle united at do,„inai seemem. 



their origin. 



Measurements. — Length of male, 45 mm. Abdomen (including ap- 

 pendages), 33. Front wing, 38. Hind wing, 37. Distance of nodus 

 from base on front wings, 20; on hind wings, IG. Pterostigma, 2. 

 Superior appendages, 2, 



Locality. — Two males in the National Museum collection, obtained at 

 the Seychelles by Dr. W. L. Abbott. 



The female is unknown to me. 



The generic characters of Schizonyx, as drawn up by Dr. Karsch- 

 and Baron de Selys,^ are as follows: Eyes with a small projection 

 on their hind margin as in the CorduUna ; cardinal cell triangular 

 [=discoidal triangle]; in the front wings placed as in the LibeUn- 

 lina, with the acute angle directed backward, free; internal trian- 

 gle of front wings two [or one] celled; two rows of posttriangular 



'One cross veiu iu the space called " median" by Baron de Selys in the Monog, 

 C4oniiih., pi. 22, but '' sous-median " in his paper in Vol. XXXV, Ann. 8oc. Ent. 

 Belg. 



-Berl. Ent. Zeit., XXXIII, p. 281, 1890. 



3 Ann. Woe. Ent. Belg., XXXV, p. ccxxvi, 1891. 



