374 EUMENID^. 



subpetiolate, cup-shaped, receiving and covering the base of the 

 2nd segment, 2nd very large and as broad as it is long. 



I know of only one species of Pferochilus occurring in India, 

 P. imlchelhis, Smith, the habits of which have been well described 

 by Home (Trans. Zool. Soc. vii, p. 1G8). It builds little cells of 

 finely-worked clay for nests, and fills them with minute spiders. 



659. Pterochilus pulchellus, Smith, Trans. Zool. Soc. vii, p. 190, pi. xxi, 

 figs. 8, 8 « (nest), & 86. 



$ . Head, thorax, and abdomen punctured, the punctures on 

 the head and thorax close and fine, the surface with a granular 

 look, on the abdomen the punctures are shallow ; clypeus convex, 

 subtriangular, the apex produced and rounded ; thorax ovate, deep, 

 the scutellum and postscutellum not particularly prominent ; the 

 median segment with a steep slope, but not vertical, its sides 

 compressed, postei'iorly with a lateral edge or angle and a medial 

 somewhat broad furrow ; basal abdominal segment narrowed, sub- 

 petiolate. Black ; the basal abdominal segment light ferruginous 

 red ; the clypeus, except a fuscous streak down the middle, a spot 

 above it, another in the emargination of the eyes, a line behind 

 them, the front of the pronotum, the tegulae, a spot on the meso- 

 pleurfe, the lateral angles of the scutellum and postscutellum, 

 a transverse band on the apical margins of the 1st and 2nd abdo- 

 minal segments, a round spot on each side near the base of the 

 latter, and elongate transverse spots on the apical margins of the 

 4th and 5th segments, with a spot in the middle of the apical seg- 

 ment above, yellow ; legs yellow, with slight ferruginous stains ; 

 wings hyaline and iridescent, 



S similar ; clypeus immaculate, the lateral spots on the 2nd 

 abdominal segment wanting. 



Hah. Mainpuri ; Allahabad, N.W. Provinces. $ . Length 7-8 ; 

 ex]). 11 mm. (S . Length 6; exp. 11 mm. 



Genus ALASTOR. 



Odynerus, pt., Guer. Toy. Cog., Zool. ii, pt. 2, p. 266 (1838). 

 Alastor,, iepe^. Hyin. ii, p. 668 (1841); Sauss. Man. Guep. Sol. 

 p. 249, pi. vi, fig. 4 «, 4 6, 4 c, & pi. vii, fig. 6 o, 6 6, 6 c, 6 d. 



Types, A. clotho and A. atropos, Lepel. 



llange. South America ; Australia; Ceylon. 



Characters those of Odynerus, except the 

 following : — labium with the median lobe 

 divided ; labial palpi of four joints, the 1st 

 inflated at the end, the 4th very minute ; 

 maxillaiy palpi with six joints, the 1st thick- 

 ened, the others slender ; mandibles acute, with 

 four lateral teeth ; fore wing with the 2nd 

 cubital cell petiolate. 

 Fig. \\\.~Alastor Only one species is known within our limits, 



variolosus, § . J. and that is from Ceylon. 



