MACROG ASTER. 29 



down the epistoma, dilating quadrately above the elypeus ; 

 mandibles black, with long white pilosity, their base coarsely and 

 irregularly punctate ; palpi stramineous. Antennce black and pale- 

 pilose, with a broad band on the twelfth and following joints, as 

 well as the scape and basal flagellar joint beneath, white. Thorax 

 black ; mesonotum somewhat strongly punctate and discally bi- 

 carinate from the notauli to the scutellar impression ; uotauli 

 deeply impressed, with their central lobe elevated and not strongly 

 constricted basally, the lateral centrally subglabrous ; pro- and 

 meso-pleurae punctate-acicnlate, with the latter centrally smooth 

 and plumbeous ; metanotura basally smooth, with its central area 

 quadrate, petiolar area laterally trans-striate, before the spiracles 

 irregularly strigose and obliquely carinate ; metapleurae closely 

 and coarsely punctate, subreticulate below and at the apex. 

 Scutellum strongly punctate ; postscutellum deeply impressed 

 basally, apically white and glabrous. Abdomen black, with a 

 plumbeous reflection and all the segments apically stramineous ; 

 the first somewhat elongate, with its basal half distinctly con- 

 stricted, and the apical pale band broad ; venter stramineous, with 

 the basal segment black and bearing a basal acuminate tooth ; 

 hypopygium flavescent and narrowly black centrally ; terebra 

 slightly longer than the body (13 miliim.). Legs: anterior pairs 

 flavous, with their femora fulvescent ; hind legs fulvous, with the 

 coxae, apices of trochanters, femora narrowly at base and broadly 

 at apex, and apices of their tibiae, black ; hind coxae apically 

 white-marked. Wings subhyaliue, with a short fascia below the 

 stigma and the apices infumate. 



Length 12 miliim. 



ASSAM : Khasi Hills (Rothnty). 



Type in the Oxford Museum. 



3. Macrogaster ferrugineus, Cam. 



Macrogaster ferrugineus, Cameron,* Manch. Mem. 1899 ; p. 198 (tf). 



A black species, with the head flavous and the abdomen red. 

 Head flavous, with only the aciculate and centrally carinate frons 

 (broadly in the centre), the largely punctate vertex and the 

 occiput above, black ; frontal orbits elevated and sulcately 

 bordered above ; face strongly punctate, with dense, infuscate 

 pilosity and its apex stoutly carinate centrally ; elypeus centrally 

 broadly impressed and apically glabrous ; mandibles smooth and 

 flavous, with their apices black ; palpi stramineous, with elongate 

 white pilosity. Antennce black, shortly pubescent throughout and 

 nearly as long as the body, with the scape clear red and the base 

 of the flagellum rufescent. Thorax black ; propleurse punctate 

 above, centrally strigose and smooth below ; mesonotum closely 

 punctate, with the lateral lobes centrally sulcate, and with four 

 stout carinae at the base of the central lobe ; mesopleurae smooth 

 above, and obsoletely punctate and white-pilose below, with the 



