DESCRIPTIONS OF NEW HYMENOPTERA. 435 



narrowed at the apex compared to the base ; the transverse median 

 aervure is received near the apex of the basal third of the cellule ; 

 the anal cellule is open. In the hind wings only the subcostal, the 

 prsebrachial and the transverse prsebrachial nervures are thick, black 

 and distinct, the others being very faint or obsolete. In the fore- 

 wings the axillary cellule is not divided. The metacarpus is thickened 

 beyond the stigma ; the radial cellule is long and narrow, extending 

 to the apex of the wing ; the middle ocellus is bordered by furrows. 



Belongs to Wesmail's division, Polymorphic but does not fit very 

 well into any of the tribes into which that group is divided. Charac- 

 teristic are the hairy eyes, the long, narrow radial cellule, the radius 

 curved upwards and the keels on the metanotum. 



DiTHEKUS RUFICOLLIS, sp. nov. (PI. fig. 14.) 



Niger, pronoto mesonotoque rufis ; alis hyalinis, apice fumato • 

 nervis stigmateque nigris ; capite thoraceque dense albo pilosis. $ . 



Long : 6-7 m.m. 



Habitat : Simla. 



Antennae black ; the scape closely punctured and thickly covered 

 with short black hair. Head smooth, shining and thickly covered 

 with long white hair ; the clypeus is less thickly pilose. Mandibles 

 dark-rufous before the apex ; the palpi black. The upper part of the 

 mesopleurse, the pronotum and mesonotum, rufous. Mesonotum thickly 

 covered with short white hair ; smooth, the parapsidal furrows crenu- 

 lated. The base and sides of the scutellum are dark-rufous j the lateral 

 farrows are deep and crenulated. Median segment closely punctured ; 

 in the centre is a large area, which is sharply pointed at the top and 

 bottom ; the sides on the upper and lower half straight, oblique ; on 

 the side of this at the base is another area, somewhat triangular in 

 shape, the broad end being at the base. Pro- and meso-pleurse smooth 

 and shining ; the base of the metapleurse to the furrow smooth ; the rest 

 rugosely punctured. Legs thickly covered with white hair ; the apex 

 of the fore femora, the extreme base of the hinder and the fore tibiae 

 and tarsi rufo-testaceous. Wings hyaline, the apex from shortly 

 behind the second transverse cubital nervure smoky, with a slight 

 violaceous tinge ; the second transverse cubital nervure is largely 

 bullated, as is also the cubitus immediately above it ; the apical 

 nervures are pale, as are also the nervures in the hind wings. Abdo- 

 men smooth and shining ; the apex densely pilose ; the furrows along 



