6 Mr. K, J. Morton on 



Apex of wings elliptical, radius not furcate at apex ; apical fork 

 No. 2 sul)-eqnal to, or only slightly longer than No. 1 ; the large 

 white spot at the thyridium very distinct. Costal hairs simple. 

 Membrane smoky with ricli dark golden irrorations ; fringes gdlden 

 interrupted with blackish. 



In tlie (t, the basal juint of the infericn- appondagi'S is short; 

 second joint relatively long, widely cleft from apex to near the base ; 

 upper section slender and finger shaped ; lower l)road and concave. 

 The peculiar formation will be understood best from the figures. 

 The upper edge of tlie broad plate which forms the greater portion of 

 the lower half of this second joint is free, and is probably liable to 

 considerable variation in position from the effects of drying. 



A 9 which I refer to this species has a long telescopically exserted 

 ovipositor. 



Expanse ^^ 21 mm., $ 27'5 mm. 



Khasia Hills, two males and one female. 



7. liliyaco'pliila anatina, n. s]:). 



Ninth segment of i^ not continued ventrally. Median process, 

 with lateral lobes, present. 



Apex of wing somewhat elliptical ; apical fork No. 2 equal to or 

 longer than No. 1. Costal hairs simple. Membrane fuscous, with 

 golden irrorations ; pterostigma dark. 



Antenme fuscous with pale annulations. 



Head thorax and aljdomen dark fuscous, paler beneatli. 



In the ^ the median dorsal process is elongate, produced at eitlier 

 side into a slender finger-shaped process ; lateral lobes slightly 

 shorter, of elongate oval shape. Inferior apjjendages witli the basal 

 joint very long, narrowing slightly towards the apex ; second joint 

 small eoncave and rounded at the tip. 

 9 with telescopic ovipositor. 



Expanse 17 to 18 mm. 



Khasia Hills. 



8. Rhyacophila navicidata, n. sp. 



Ninth segment in the $ apparently not continued ventrally. 

 Median process long with parallel sides, constricted towards the 

 apex which is divided into two divergent somewhat rounded lobes. 

 No apparent ventral teeth. 



Anterior wings rather broad, apex parabolic ; apical fork Nos. 1 

 and 2 sub-equal in length ; radius not distinctly furcate. Pale 

 yellowish with greyish reticulations, but the wings are not in very 

 good condition. 



