210 Mr. P. Cameron on new 



interstitial ; the radial cellule wide, lanceolate at base and 

 apex. Clypeus short, not separated by a furrow from the 

 face, its apex rounded ; the labrum distinctly projecting, its 

 sides oblique. Mandibles with two equal teeth on the apex. 

 Parapsidal furrows only distinct at tiie basal half. Scu- 

 tellum rcundly convex ; the postscutellum bitbveate at the 

 base. Metathorax large, with a gradually rounded slope to 

 the apex, densely pilose, with one narrow, curved, transverse 

 keel near the base; the spiracles large, oval. Legs longish, 

 the hinder tarsi spinose. Petiole narrow, distinctly curved ; 

 the apex dilated; the spiracular sj)ace prominent, placed near 

 the base of the postpetiole at the base of the apical third. 

 The apical abdominal segment and the hinder tarsi white. 

 The claws are sim})le; the fore farsi are twice the length of 

 the tibice and are curved at the base. 



This genus has the large square areolet of Etha, but may 

 be known from it by the median segment being rugose, not 

 smooth, by the petiole being narrower, with the apex 

 abiuptly, not gradually, dilated ; the spiracles are placed 

 nearer the apex j the median segment is densely covered witii 

 long hair, the apical abdominal segment is white, and the 

 parapsidal furrows are incomplete. The labium projects; the 

 cubital nervnre is curved gradually at the base; the sub- 

 discoidal nervure issues from the middle of the nervure. 



Dayro pilosus, sp. n. 



Niger ; clypeo, ore palpisque albis ; abdomine rufo-baltcato ; pedi- 

 bus rufo-fulvis ; coxis anterioribus tarsisque posticis albis ; coxis 

 trochanteribusque postcrioribus apiceque tibiarum posticarum 

 nigris; alis fulvo-hyalinis, stigmata nigro. c? . 



Long. 14 mm. 



Hah. Khasia Hills. 



Head black; the face, clypeus, lal)rum, mandibles (except 

 at the apex), palpi, and a line on the middle of the inner 

 orbits pallid yellow. The front and vertex closely and 

 strongly punctured, almost bare, the hinder part ot the vertex 

 thickly covered with short fuscous hair; the face and base of 

 the clypeus closely and strongly punctured, covered with 

 longish fuscous hair, the apex of the clypeus smooth and with 

 the hair longer; the labrum elongate, the sides oblique, the 

 apex transverse. Mandibles short and broad, the teeth 

 black ; the palpi long and covered with white hair. Thorax 

 black ; the base of the tegulfe, the scutellum (except for a 

 large triangular black mark at the base), and the postscutellum 

 yellow. Mesonotum closely punctured, thickly covered with 



