OCR Text |
Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 265 Antennce comparatively long and slender, piceous, with sparse pale-seta? ; scape slender, subcylindrical, rather abruptly clavate, slightly curved, the third joint of the funicle scarcely longer than the first, the three subterminal joints much longer than broad. Prothorax slightly transverse in the o* > more so in the 2 > truncate at base and apex, sides subparallel from base to far beyond middle, thence rapidly narrowed to apex; upper surface slightly convex but flattened on the disk, somewhat sparsely set with small low smooth tubercles, most of which are rounded but some elongate; colour black or piceous, the discal area bare, the sides and presternum with moderately dense depressed yellowr seta?. Elytra ovate, subacu-minate apically in both sexes, but a little broader in the 2 > jointly sinuate at base, shoulders very oblique, sides moderately rounded, broadest before middle ; upper surface convex, subcompressed on the declivity so that the suture is there rather prominent, with shallow stria? containing rows of shallow separated punctures, the intervals slightly convex, of approximately equal width on the disk, finely aciculate, and bearing scattered irregular low tubercles which in some parts make the elytra appear to be transversely rugose ; colour black or piceous, almost bare on the disk but with the sides somewhat densely clothed with yellow setiform scaling; on the apical half the intervals bear rows of long erect pale seta?. Legs dai'k ferruginous, the trochanters, knees, and tarsi black, covered with sparse jmle seta?, thicker in the o" than in the 2 J a n d with all the tibia? broader and more strongly curved. TYPE, 2 in the British Museum, o* in the South African Museum. P O N D O L A N D : Port St. John (G. Shortridge). Besemblmg a large tottus Sparrm. in appearance, but the scape is shorter, stouter, and less strongly clavate, and the granulation of the elytra is coarser. The presence of long erect seta? is also a distinctive character, being very unusual in the genus. 28. SCIOBIUS TOTTUS Sparrm. Curculio tottus, Sparrm. Act. Holm. 1785, p. 50, t. 2. f. 21. S. tottus, Gyl. Schonh. Gen. Cure. ii. p. 535 (1834). S. porcatus Gyl. 1. c. p. 535. Long. J 8-8f, 2 8f-10; lat. 6 34-3f, 2 3£-4imm, Head transverse, convex, with close shallow punctuation and thin grey scaling; forehead scarcely impressed in middle; eyes not very prominent. Rostrum rather longer than broad, basal margin angulate, sides subparallel to near apex, gena? slightly and roundly dilated, similar in the two sexes; upper surface plane, with scaling and punctuation as on the head, tricarinate, the outer carina? parallel to near .apex, then divergent. Antennce very long and slender, piceous, with fine grey pubescence; scape elongate, regularly curved, cylindrical, abruptly clavate; funicle with the third joint scarcely longer than the first, the subterminal joints elongate and scarcely broader apically. Prothorax moderately transverse in o*, more so in 2 J slightly arcuate at base, narrower and |