OXTBELITS. 315 



b^. Mucro incised at apex. 



a*. Euclosed space at base of median 

 segment below mucro smooth. 

 a\ Margins of abdominal seg- 

 ments 2-5 with transverse 



bands of yellow O. ri'Jicornis, p. 317. 



6\ Abdominal segments 1-4 with 



lateral yellow spots O, cestuosus, p. 318. 



b*. Enclosed space at base of median 

 segment below mucro punc- 

 tured P 0. insularis, p. 318. 



c'. Enclosed space at base of median 

 segment below mucro linely 



shagreeued O.Jlavipes, p. 319. 



J'. Euclosed space at base of median 

 segment below mucro coarsely 



rugose O.fulvojnlosus, p. 319. 



e'. Enclosed space at base of median 

 segment below mucro widely 



oblit[uely striate 0. canescens, p. 320. 



b. Lateral squamie obsolete O. lewisi, p. 320. 



563. Oxybelus squamosus, Smith, Tr. Ent. Soc. 1875, p. 38, $j Cmn. 



Mem. Manch. L. Ph. Soc. (4) iii, 1890, p. 276. 



2 , Head aud mesonotum strongly punctured, in certain lights 

 appearing striate ; front below the vertex and clypeus pubescent, 

 with adpressed hairs ; pronotum smooth ; scutellum and post- 

 scutellum sparsely punctured, the projecting lamina) slight, the 

 median mucro large, leaf-like, and deeply incised at apex ; median 

 segment short, the apex abruptly truncate, smooth, the sides above 

 Avith three or four short obscure divergent carince, and the upper 

 border of the truncated apex with another bisiuuate carina ; 

 abdomen finely and closely punctured. Black ; the scape of the 

 antennsE beneath, a broad line on the pronotum, the tubercles, two 

 lateral spots on the scutellum, and large elongated spots on the 

 sides of abdominal segments 1-4 yellow ; the flagellum of the 

 antennse beneath, the mucro, the auterior tibiae, the intermediate 

 femora and tibiae, and the posterior femora bright ferruginous, the 

 anterior femora black with the apices yellow, the posterior tibiae 

 and all the tarsi f usco-ferruginous ; wings hyaline, nervures pale 

 testaceous, 



Bab. Barrackpore ; Ceylon. $ . Lemjth 7 ; exp. 14 mm. 



564. Oxybelus robustus, Cam. Mem. Manch. L. Ph. Soc (4) iii, 1890, 



p. 27G, pi. X, lig. 21. 



$ . Head, thorax, and abdomen somewhat closely and finely 

 punctured ; clypeus much broader than high, its anterior margin 

 transverse, nearly truncate ; scutellum with a very short medial 

 longitudinal carina at its ])osterior margin continued over the 

 postscutellum ; squamae subtriangular, arched on the outside, curved 

 inwards on the inside ; mucro lamellar, as broad as long, its apex 



