304 SPHEGID^. 



sternum laterally with two teeth ; the enclosed space at the base 

 of the median segment smooth and shining, with only one or two 

 large punctures, medially divided by a fine furrow, which is con- 

 tinued to the apex of the segment. Black ; the base of the 

 mandibles, clypeus, sides of the face broadly, not reaching the 

 vei'tex, a small balloon-shaped mark above the base of the 

 antennse, a diagonal spot behind the eyes on each side of the 

 vertex, the posterior margin of the pronotum, the tegulae, the 

 tubercles, a spot round the lateral mesosterual teeth, two large 

 spots on the scutellum, a line on the postscutellum, a large oval 

 spot on each side posteriorly of the median segment, two minute 

 spots above on the basal, and transverse bands on the apical 

 margins of the 2nd, 3rd, and 5th abdominal segments, yellow ; the 

 flagellum of the antennae, femora and tibiee of the legs above, and 

 basal abdominal segment ferruginous, the femora and tibise beneath 

 and the tarsi yellow ; wings hyaline, apex of fore wing with a light 

 fuscous spot, nervures testaceous. 



Hah. Barrackpore, Bengal ; Poona, Bombay. 5 • Length 8-9 ; 

 exp. 16-17 mm. S unknown. Type in coll. E-othney. 



*544. Cerceris tetradonta, Cam. Mem. Manch. L. Ph. Soc. (4) iii, 1890, 

 pp. 250, 261, pi. X, fig. 12. 



5 . " Black, closely and rather strongly punctured ; the clypeus, 

 the cheeks broadly from near to the top of the antennal ridge, 

 scape beneath the base of the mandibles, two small spots behind 

 the ocelli, a large line behind the eyes, a broad line on the side of 

 the pronotum, a mark on the side of the scutellum, metanotum, 

 two large marks on the side of the median segment, tegulae, 

 tubercles, a small spot below them, the sides of the petiole, and a 

 short line on the edges of the other segments, and on the edges of 

 the 3-5 ventral segments, whitish yellow .... Flagellum rufous 

 beneath, fuscous above, the 3rd and 4th joints subequal. Clypeus 

 flat, the apex projecting and armed with four stout blunt "teeth. 

 Pronotum rounded at the sides and with an oblique slope in front. 

 Mesopleural farrow indistinct. Trigonal area smooth, impunctate, 

 shining, the central furrow narrow ; metapleurse at base strongly 

 striolated, black above, the rest reddish, the extreme apex of the 

 median segment being also reddish. Petiole rufous, broader than 

 long, the base oblique .... The basal ventral segment is entirely 

 rufous, the others are broadly rufous in the middle. AVings almost 

 hyaline, the apex infuscated .... Legs rufous in front, more or 

 less whitish yellow beneath, the hind tibiae fuscous behind, the 

 hind tarsi for the greater part fuscous. 



" The S is smaller and similarly coloured, but with the yellow 

 marks more reduced, the clypeus slightly convex, the apex trans- 

 verse except that a short not very distinct tooth projects in the 

 middle. The femora are broadly lined with black laterally and 

 above, especially the anterior four. 



" Hah. Poona, Bombay Presidency. $ . Length 6-7 mm." 



