NEW GENUS AND SOME NEW SPECIES OF HYMENOPTERA. 133 



difference in the form of the post-scutellum : in punctatus it forms a broad 

 triangle, i.e., its apex becomes gradually, obliquely narrowed to a point in the 

 centre ; in the present form it is broadly rounded, not narrowed to a point. 

 Odynerus (Ancistrocerus) leucospilus, sp. nov. 

 Black, the clypeus, mandibles except the teeth, a large frontal mark, 

 narrowed below, its length more than the width at the top, a broad line on the 

 lower part of the eye orbits, underside of antennal scape, a broad line on the 

 upper two-thirds of the eye orbits, a broad mark on the pronotum, leaving a 

 triangular black mark on the apex, a broad mark, transverse above, rounded 

 below, under the tegulse, almost touching them, tegulas, basal three-fourths of 

 scutellum, sides of metanotum broadly, a mark on the basal three-fourths of 

 the 1st abdominal segment, in the centre ; its apex widened slightly and irregu- 

 larly, the central part slightly incised, the sides projecting, the 2nd, except for a 

 large trilobate black mark in the centre of the basal three-fourths, the basal to 

 be smaller and narrower than the lateral, a line on the base of the following 

 segments, the last entirely, and spots on the sides of the 3rd, 4th and 5th and 

 the 6th ventral segment entirely, black, the rest of the abdomen pale yellow, 

 almost white. Legs pale yellow, the femora 4 above and the tarsi rufous. 

 Underside of antennal scape pale yellow, of the flagellum rufescent. Wings 

 clear hyaline, the nervures black, the stigma brown. $. 



Total length 9 mm. 



Quetta. July. 



A broad, stout species, closely, strongly punctured and covered with a short 

 white pile. Clypeus broader than long, its apex slightly roundly incised. Base 

 of thorax transverse. Post-scutellum projecting as a ridge over the metanotum, 

 its apex rough, transverse, its sides bordered by a narrow keel. Metanotum 

 with a steep slope, its sides rounded, with a short, but distinct, conical tooth 

 below the middle. First abdominal segment cup-shaped, the 2nd not much 

 wider than long, not narrowed at the base, the apex slightly, narrowly 

 depressed. There are 2 distinct furrows on the apex of mesonotum. 



Odynerus (Ancistrocerus) quettaensis, sp. nov. 

 Length 8 mm. $ . 

 Quetta. July. 



This species is very similar to the foregoing ; the differences between them 

 may be expressed thus : — 



Colour pallid yellow, post-scutellum immaculate, sides of 

 metanotum spinose, the mark on 1st abdominal segment 

 wider at the apex than at the base, the mark on 2nd 



abdominal segment not triangular leucospilus. 



Colour bright lemon-yellow, post-scutellum maculate, sides of 

 metanotum not spinose, the mark on 1st abdominal seg- 

 ment widest at the base, the mark on the 2nd triangular ...quettaensis. 

 Frontal mark triangular, longer than it is wide at the top ; the mark in 

 eye incision widened above, with a short projection on the outerside. Clypeus 



