OCR Text |
Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 259 dilated in the o*, scarcely produced in the $ ; upper surface plane, rugosely punctured, distinctly tricarinate, the outer carina? parallel to middle, then curving outwardly. Antennce comparatively short, piceous, with fine grey scaling; scape broad, strongly compressed, dilated from base to near middle, the sides subparallel from there to apex, upper surface rugosely punctured and with a shallow sulcus; funicle with the third joint a little longer than the first, terminal joints not very elongate, sub-conical. Prothorax strongly transverse, subtruncate at base, narrower and gently sinuate at apex, sides almost straight from base to beyond middle, thence rapidly narrowed to apex; upper surface slightly convex, with close depressed and sometimes confluent granulation; colour black, with sparse grey scaling which is denser laterally. Elytra very broadly ovate in <5, globose in 2 > subtruncate or slightly sinuate at base, sides strongly rounded, broadest about middle; upper surface convex in 2 t more plane in o*, with deep stria? containing distinct granules which are continued right up to apex; the intervals of equal width, almost plane, smooth, .and coriaceous, but with a few obsolescent granules on the declivity; colour black, piceous, or dark ferruginous, with uniform thin grey scaling, which is condensed into paler patches along the inflexed margins. Legs moderately long and stout in J, shorter in 2> piceous or ferruginous, with sparse grey scaling; anterior tibia? straight externally in $ , slightly curved towards apex in the $ . T Y P E tf 2 in the Stockholm Museum. C A P E COLONY : Uitenhage and Bedford (Father OXeil) ; Grahamstown (Mrs. G. White) ; Steynsburg (Miss Lippan) ; Somerset East and Tsomo [S. A. Mus.']. The 2 0I this species has more strongly globose elytra than any other in the genus, although the 2 0I pullus approaches it nearly; but the latter may be distinguished by its much more slender scape and longer and more slender funicle. 21. SCIOBIUS PULLUS Sparrm. 2 . Curculio pullus Sparrm. Act. Holm. 1785, p. 56, pi. 3. fig. 38. J . S. ductus Boh. op. cit. vii. 1, p. 196 (1843). o". S. varius Boh. 1. c. p. 197. Long, o* 5i-6, 2 5i-6i; lat. tf 2f-3, $ 3f-4 m m. Head moderately transverse, convex, rugosely punctured and with thin grey scaling; forehead plane but not impressed; eyes slightly prominent. Rostrum longer than broad, with the base arcuate, sides subparallel to beyond middle, gena? slightly and roundly dilated, similar in the two sexes; upper surface plane, rugosely punctured, distinctly tricarinate, the outer carina? sub-parallel to beyond middle and then curved outwardly. Antennce long and slender, piceous, with fine grey scaling; scape not compressed, strongly curved, rather abruptly clavate; funicle with PROC. ZOOL. Soc-1906, VOL. I. No. XVITT. 18 |