Species of Spheg'idse from the Khasia Hills. 219 



the latter not keeled in the middle, its apex broadly rounded. 

 Mesonotum and scutellum closely punctured, the former 

 with a narrow keel down the middle. Pleuraj smooth, thickly 

 covered with short white hair ; the furrows crenulated. 

 Fore tarsi covered with broad leaf-like spines. Pygidium 

 not depressed, keeled, or punctured. Abdomen sessile. 



Cerceris. 

 a. Metanotal area punctured. 



Cerceris bimaculata, sp. n. 



Black ; a large semicircular mark on the cheeks touching 

 the eyes, a triangular mark below the antennal keel, the 

 clypeus (except for a broad black line on the apex), a broad 

 band on the pronotum, the sides of the scutellum broadly, 

 the base of the second abdominal segment, almost the apical 

 half of the third, and a narrow interrupted line on the fourth 

 and fifth segments, rufous. Wings smoky fuscousj lighter 

 behind, the stigma fulvous. ? . 



Length 10 mm. 



Front and vertex closely and strongly, the cheeks closely 

 and less strongly, and clypeus more sparsely punctured. 

 Apex of clypeus slightly waved, the outer of the three pro- 

 jections the larger. Antennal keel stout, black. ]Mesonotum 

 closely, rugose)}' punctured. Metanotum with area closely 

 punctured, the apex Avith two shining foveae. Mesopleur^e 

 reticulated, the pro- and metapleurae aciculated. Pygidium 

 irregularly rugosely punctured ; the sixth ventral segment 

 has on the sides, at the apex, a patch of fulvous pubescence ; 

 the hypopygium entire. 



May be known from C himalayensis and canaViculata by 

 the scutellum being broadly rufous at the sides. The four 

 anterior tibise and the anterior tarsi in front are testaceous. 



Cerceris canaliculata, sp. n. 



Black ; the face, lower inner orbits widely, clypeus (except 

 at the apex), a band on the pronotum, the base of the second 

 abdominal segment, the apical half of the third, and a narrow 

 line on the sides of the fourth segment, rufous. Wings 

 fuscous, if anything darker in front, and with a sliglit vio- 

 laceous tint. Legs black, the four anterior tibiic testaceous 

 in front. cJ . 



Length 10 mm. 



