in i;. .1. TiMiVAHi). 325 



hairs upon the body and wings; indeed, I know of few Tricliop- 

 terous insects even that have such a hairy appearance. 



Two genera are repi-esented, which may be separated as 



follows, — 



Wings of moderate breadtli, sliglitly falcate, the margin below 

 the apex being slightly excavated. Antennre with basal joint 



not unduly enlarged 



Genus Trichoma, n.g. (Type, T. yracifipenne, n.sp.). 



Wings elongate, excessively narrow, fore and hind margins par- 

 allel, apex almost in line with hind margin. Antennas with 



greatly hypertrophied basal joint 



iienufi Stenohie/Ia, n.g. (Type, <S'<. A/VaM/AWma, n.sp.). 



Genus Trichoma, n.g. (Plate xix., fig.34). 



Characters as given above in the generic key, with the follow- 

 ing additions. Size moderate (about 1 inch expanse), antenna- 

 nearly as long as forewing; three branches to Rs in forewing. 

 four in hindwing. In hindwing, Cuj runs parallel to posterior 

 margin from just above the ending of lA to the point where M„ 

 branches, and then curves down to meet the wing-border just 

 before the tornus: from this part of Cu,, oblique, much-branched 

 veinlets descend to the border: Cu, is also connected with lA, 

 from just above the end of the latter, by a vein running back to 

 1 A parallel with the border. Costal cross-veins in forewing all 

 branched before ptei'ostigma; the most basal one is tending to 

 become a true, recurrent veinlet. 



Genotype, 7'. gracilipentte, n.sp. 



20. Trichoma gracilipenne, n sp. (Plate xix., tig.34). 



Total length, 10: abdomen, 6; forewing, 12; expanse, 25 mm. 



Head dark brown, eyes very dark; antenna; with basal joint 

 dark, hairy, the rest a medium brown, barely pectinate. Thorax : 

 prothorax dark brown, hairy, divided into two by a transverse, 

 median groove. Pterothorax dark brown, about as wide as head, 

 moderately hairy, rather shiny, with pale brown markings along 

 the sutures and posterior border. Legs oi medium length, hairy, 

 brown; tibiae ^fithout spurs: tarsi 5-jointed, the basal joint 

 nearly as long as the other four together. A b d o m e n dark 

 brown, hairy; appears narrow when viewed dorsal ly, broad in 



28 



