302 SPHEGID^. 



enclosed space at the base of the median segment small, smooth, 

 shining, a single row of punctures along its sides : a medial slight 

 groove ending beyond the apex in a small depression, beyond 

 which again the furrow is continued to the apex of the segment ; 

 abdomen longer than the head and thorax united. Black, the 

 clypeus and face below the base of the antennae, the scape of the 

 latter, the antennal carina, a spot behind the eyes (sometimes 

 absent), the pronotum posteriorly, the tegulae, a curved medially 

 interrupted line on the scutellum, a transverse line on the post> 

 scutellum, two spots, one above the other, on the mesopleurse, a 

 spot at the base (sometimes absent) and two apical lateral spots on 

 the 2nd abdominal segment, and the whole 3rd and 5th segments 

 above white, the white on the 3rd and 5th segments emarginate 

 anteriorly; basal two segments of the abdomen red; flagellum 

 fulvous ; legs white, the intermediate and posterior femora and 

 tibiae more or less stained with chestnut-red ; wings hyaline, 

 fuscescent at apex. 



Hah. Bombay. $ . Length, 10-11 ; exp. 19 mm. 



540. Cerceris rothneyi, Cam. Mem. Manch. L. Ph. Soc. (4) iii, 1890, 



pp. 250 & 251. 



2 . Clypeus and front punctured, the punctures very shallow ; 

 the clypeus anteriorly transverse, with a minute tooth at the base 

 of the mandible on each side ; head above and mesonotum closely 

 and finely punctured ; pronotum, scutellum, postscutellum, median 

 Segment, and abdomen finely but not so closely punctured ; the 

 triangular enclosed space at base of med'an segment smooth and 

 shining, medially furrowed, the furrow continued to the apex of 

 the segment. Variegated with black, yellow, and ferruginous ; 

 the base of the mandibles, the clypeus and face in front, as high as 

 halfway between the base of the antennae and the anterior ocellus, 

 the scape, the tegulae, the middle of the scutellum and post- 

 scutellum, the base of the 2nd, the 3rd, and 5th segments of the 

 abdomen above, yellow ; the vertex of the head, the cheeks, and 

 the 4th and 6th abdominal segments black, the rest of the thorax 

 and abdomen ferruginous or chestnut-red ; legs yellow, the femora 

 above stained with dark red ; wings hyaline, the apex of the fore 

 wing fuscous. 



Bab. Barrackpore, Bengal. § . Length 10 ; exp. 20 mm. 

 Type in coll. Eothney. 



541. Cerceris orientalis. Smith, Cat. p. 454, 9 j; SchMt. Zool.Jahrb. 



1887, p. 498; Cam. Mem. Manch. L. Ph. Soc. (4) iii, 1890, pp. 250 

 & 2G5, pi. X, fig. 14. 



2 . Head, thorax, and abdomen strongly but not very closely 

 punctured ; clypeus porrect. the apex roundly emarginate, beneath 

 with a fringe of long stiff hairs, the sides of the face and front, 

 and the cheeks, pilose ; the front from below the anterior ocellus 

 to the base of the clypeus with a wide well-marked carina ; mediaa 

 segment with a small enclosed space at base smooth, divided by a 



