igog. I C. Betten : Notes on the Trichoptera. 237 



black, further out the proportions of the colours change so that 

 the antennse appear black, ringed yellow. Legs yellow to brown, 

 with darker hair particularly on the distal joints; coxae brown. 

 On the fore wing the hairs on the anterior part are dark brown 

 with spots of yellow particularly at the apex ; the posterior third 

 of the wing is almost whoU}^ yellow and the veins in this region are 

 more indistinct. The difference in coloration is very sHghtly indi- 

 cated in the wing membrane. 



Two females from Kurseong {Annandale , May, 1906). 



Hydromanicus orientalis, sp. nov. 

 (PI. XV, figs. 14 — 16.) 



This species is closely related to H. marginatus but does not 

 have the peculiar coloration of the latter and is considerably 

 smaller, the expanse being 16 mm. The hair on the head is yellow, 

 while in marginatus it is black. In the fore wing the membrane is 

 nearly uniform brown, the pubescence rather scant, forming very 

 indistinct irrorations of yellow and black. These irrorations are 

 more distinct on the anterior margin. In venational and other 

 characters, I see no difference between this and the preceding 

 species. 



[Specimens from Kurseong {Annandale, May, 1906).] 



Hydromanicus brunneus, sp. nov. 

 (PI. xvi, figs. 1 — 4.) 



Length to tip of the wings 8 mm. Head and thorax dark 

 brown to black above with brown hair. Antennae at base whitish 

 ringed with brown ; more distally the brown band is wider than 

 the pale one. Legs dark brown, tarsi still darker; hind femora 

 with long hair. Fore wings reddish brown with lighter spots parti- 

 cularly along the anterior margin and at apex. The alternate 

 light and dark markings at the wing apex extend also over the 

 marginal fringe. Venation practically as in the two preceding 

 species. Genitalia very different from the preceding species as 

 shown by the figures. 



Several specimens from Upper Assam. 



Fam. POLYCENTROPID^. 



Subfam. POLYCENTROPINM. 



Gen. Hyalopsychodes, nov. 



This genus is closely related to Hyalopsyche, Ulmer, reported 

 from W. Africa. It differs from that genus mainly in having no 

 labial palpi. The maxillary palpi are like those figured by Ulmer 

 for Hyalopsyche, but the fifth joint is comparatively longer. In 

 addition it may be noted that the disparity of length in the spurs 



