264 SPHEGlDy^. 



sides of the median segment with some coarse rugose sfrife. 

 Entirely black, with sparse hoary pubescence on the head, the 

 sides of the thorax, and median segment. 



Hah. Madras ; Pundaloya, Ceylon. $. Length 11; exp.2Smm. 

 Type in coll. Eothney. 



487. Psen rufiventris,Crt?n. Mem. Manch. L. Ph. Soc. (4) iii, ]890, 

 P.2G7, ?. 



2 . Head and thorax thinly pubescent and pilose, most dense on 

 the clypeus, the cheeks, the pleurae, and the sides and apex of the 

 median segment; the vertex of the head, thepronotuin, scutellum, 

 postscutellum, sides and apex of the median segment under the 

 pubescence, and the abdomen smooth and shining ; the clypeus, 

 the front, and the mesonotum finely and strongly punctured ; the 

 clypeus convex, the apex produced, roundly emarginate, the sides 

 oblique ; median segment with a large subtriangular depressed 

 space at base, coarsely longitudinally striate, and produced at apex 

 into a broad deep furrow running to the apex of the segment ; 

 abdomen, the petiole as long as the head and thorax united, the 

 rest of the abdomen slightly longer ; the 5th segment with a 

 marked constriction near its base. Black, the clypeus and cheeks 

 with golden and the thorax with silvery pile ; the mandibles, 

 antennae beneath, and the greater part of the legs testaceous, the 

 2nd and following abdominal segments more or less red shaded 

 with fuscous black ; wings hyaline and pubescent, nervures and 

 tegulae dark brown, nearly black. 



Hah. Madras. $ . Length 9 ; exp. 18 mm. S unknown. 

 Type in coll. Eothney. 



*488. Psen clavatus, Cam. Mem. Manch. L. Ph. Soc. (4) iii, 1890, 



p. 268, 2 ■ 



2 . " Smaller than P. rufiventris (8 mm. only), differing from it 

 in the eyes being rounded in front, diverging at apex ; in the 

 antennae being distinctly clavate, with the 3rd joint not twice the 

 length of the 2nd (in rujlventris it is three times) and not much 

 longer than the 4th ; in the 3rd joint being nearly twice the length 

 of the penultimate ; in there being no furrow behind the ocelli ; in 

 the base of the median segment not being depressed and with 

 three keels down the central part — one central and two lateral 

 keels ; the abdomen apart from the black petiole is entirely 

 rufous ; the 2nd cubital cellule is narrowed almost to a point at 

 the top ; the head and thorax are more distinctly aciculate, and 

 there are two shallow furrows on the mesonotum, only the four 

 anterior knees, tibiae, and tarsi are testaceous, this being also the 

 case with the hinder." 



Hab. Poena. 



