Descriptions of ncAO species of Oriental Illiyacophilx. 3 



before the apex. Apical cellules Nop. 2 and .3 fuscous, the hand so 

 formed being continued oltliquely towards the inner marginal area ; 

 this band is followed by a pale, strongly outstanding, oblique band, 

 then follow another fuscous oblique band, a paler oblique band 

 marked with faint irrorations, 'and finally a yellowish marginal 

 band. Inner marginal area closely irrorated with dark fuscous ; 

 post-costa densely pubescent and mostly black as are also the veins 

 converging at the arculus. Hind wings 2)ale, almost hyaline, slightly 

 yellowish at the apex. Antenna) pale yellow ; head pronotum and 

 legs (and the anal parts of the ^ ) yellowish ; meso and meta-nota 

 brownish ; abdomen dark fuscous. 



In the $ the inferior appendages are large elongate, nearly 

 horizontal ; the basal joint very long and, when viewed from the 

 side, slightly excised at the apex, the small somewhat rounded 

 second joint being placed in the excision. The large approximated 

 lateral lobes are also horizontal in their proximal portion which is 

 concave ; distally they are aljruptly narrowed and turned down- 

 wards between the inferior appendages, and they terminate in long 

 lanceolate processes which are provided with a number of smaller 

 somewhat similar processes. 



In the 9 the ovipositor is short and stout. 



Expanse 28 to 37"5 mm., tlie 9 tlie larger. 



Khasia Hills, evidently common, 



A ^ and % from Phadong, Sikkim, are also referred to 

 this species in the meantime, although the second joint of 

 the inferior appendages seems narrower and the lanceolate 

 apex of the lateral lobes appears to be shorter. This 

 however may only be the result of drying. This species 

 is a very striking one on account of the oblique pale 

 markings, which taken in conjunction with the anal parts 

 will no doubt in time lead to its being separated generically 

 from the more typical forms of Bhyacopliila. 



2. Wiyacopliila japonicct, n. sp. 



Ventral abdominal teeth in both sexes ol:)solete or absent. Ninth 

 segment in the ^ continued Ijroadly ventrally : no median process 

 above. 



Apex of wings sub-angulate ; rather more pointed in the 9 • 

 Apical fork No. 1 extending further inwards than No. 2 in the fore 

 wings, these forks sub-equal in tlie hind wings ; radius furcate at 

 the end. Costal hairs simple. 



Fore wings yellowish-grey with five more or less irregular inter- 

 rupted darker bands ; an apical blolcli and dots at the termination 



