77 



basal segments set close together between, and a little in front of, the eyes, 

 Maxillary palpi with two short basal segments; third segment long; the fourth 

 about two-thirds as long as the third ; fifth segment as long as the other four 

 taken together, not very clearly annulated, but flexible and waved. 



Thorax: Legs long and slender, the tarsi as long as the tibiae. Spurs 3, 

 4, 4; the subapieal spurs of fore and middle tibiae placed at or a little before 

 the middle, those of hind tibiae a little beyond the middle. 



Abdomen: Apjyendages of male all strongly developed; the apotcrga and 

 the preanal appendages long and slender, the penis and gonapophyses stoutly 

 built, and a pair of lateral processes from the ninth sternite lying close outside 

 the latter. Female with the tenth tergite produced into a cornute process. 



Wings: Foren-ing narrow at base, broader towards apex, which is rather 

 narrowly rounded; a prominent jugal lobe projects from near the base trans- 

 versely across the costal space of the hindwing. Hindwing broader, almost 

 equally wide from base to end of Sc. Wing-venation complete and of primitive 

 form, all the apical forks being present, and all the cells closed. Specialisations 

 are, in the forewing, the bend of Cui on leaving, tc, the distal arching of Cus 

 and the great shortening of 2A and 3A; in the hindwing, the great strength of 

 Cui, the large size of its apical fork, the development of a wide anal area, and 

 the forking of 2A and 3A near the base. The venational scheme is shown in 

 Text-fig. 1. 



Ri R, 



2A 1A 



Text-fig. 1: Stetwpsychodes Memalis n. sp., d 1 . Wing-venation. 1A, 2A, 3A, 

 the three anal veins; Afi to Afn, the five apical forks (of which Af4 is never 

 present in hindwing); Cui, first cubitus, with its branches Cuia, Cuib; Cu2, 

 second cubitus or vena dividens; hm, humeral veinlet; jg, jugal lobe; M, 

 media, with its four branches Mi to M4; mc, median cell; pt, pterostigma; 

 Ri, main stem of radius; Rs, radial sector, with its four branches, R2 to Rs ; 

 re, radial or discoidal cell; Sc, subcosta; sp, wing-spot; tc, thyridial cell. 



