CERCEBIS. 303 



medial furrow which is contiuued down the truncated posterior 

 face of the segment to the apex, the sides of the median segment 

 with long soft pubescence ; abdomen longer than the head and 

 thorax unitetl. Reddish brown, the region of the ocelli and trans- 

 verse narrow bands at the base of abdominal segments 2-5 black, the 

 pile on the face silvery, the pubescence on the median segment 

 white ; wings flavo-hy aline, apical margin of the fore and apex of 

 hind wing fuscous. 



S similar, slightly smaller, with fuscous marks on the thorax. 



Hab. North- West Provinces ; Barrackpore; Madras. §. Leivjth 

 18-22 ; exp. 36-44 mm. 



542. Cerceris humbertiana. 



? Philanthus iuterstinctus, Fabr. Ent. Sijst. Siqjpl. p. 269. 



? Cerceris interstincta, Smith, Cat. iv, p. 4.52. 



Cerceris humbertiana, Sauss. Novara-Reise, Hym. p. 97, $ ; Schleft. 



Zool. Jahrh. 1887, p. 494; Cam. Mem. Manch. L. Ph. Soc. (4) iii, 



1890, p. 249. 

 Cerceris emortualis, Sauss. Novara-Reise, Hym. p. 98. 

 Cerceris viscosus. Smith, Tr. Ent. Soc. 187.5, p. 40, J . 

 Cerceris rnfinodis, Smith, Tr. Ent. Soc. 1875, p. 41, J. 



2 . Head, thorax, and abdomen closely and not very finely 

 punctured, lamina of clypeus porrect, the apex very slightly emar- 

 ginate ; antennal carina short, pyramidal in form ; median segment 

 with triangular enclosed space at base smooth and shining, a very 

 short but deep longitudinal furrow at its apex, the furrow not 

 continued to the apex of the segment ; abdomen somewhat longer 

 than the head and thorax united. Reddish brown ; mandibles at 

 base, clypeus, front to a little above the base of the antennae, tlie 

 scape of the latter, the antennal carina, a small spot above it, the 

 cheeks, the posterior margin of the pronotum, a spot on the 

 tegulae, a spot on the mesopleurae, another below it on the meso- 

 sternum, a small spot at the lateral angles of the scutellum, a line 

 on the postscutellum, a broad elonijate mark on the sides of the 

 median segment, and large semicircular spots on the apical margins 

 of abdominal segments 2-4, with the whole of the 5th segment 

 above, bright yellow ; an elongate spot on the front above the 

 clypeus reaching a little beyond the ocellus, and the bases narrowly 

 of the 2nd and following segments of the abdomen black ; wings 

 hyaline, the stigma and apex of fore wing fuscous. 



c? similar in shape of the yellow markings, but black, with the 

 basal segment red. In both sexes the legs are yellow, \ariegated 

 with chestnut-red in the female, black in the male. 



Hab. Barrackpore, Bengal; Ceylon, g. Lemjth 10-12; exi). 

 19-22 mm. d . Lemjth 9-10; exp. 15-19 mm. 



513. Cerceris dentata, Cam. ^fe}n. Manch. L. Ph. Soc (4) iii, 1890, 

 pp. 248 & 2U0, pi. X, tig. 10. 



2 . Clypeus broad, depressed, smooth, arched anteriorly ; the 

 head above, thorax, and abdomen coarsely punctured, the meso- 



