86 MR. G. A. K. MARSHALL ON COLEOPTERA [Jan. 19, 



elytra are more elongate in shape, the posterior declivity being- 

 more gradual and the apical processes sharper. The elevation of 

 the margins of the rostrum and the obsolescent upper lateral 

 fui-row are also distinctive characters. 



73. H. EXiLis, sp. nov. (Plate II. fig. 10.) 



Long. 14, lat. 6 mm. 



Head with close shallow punctuation and dense brown scaling, 

 convex ; foi-ehead not flattened, but with a central rounded 

 impression ; anteocular furrows very deej), but not convergent 

 (lorsally. Hostrttm not incised at base, as long as head and pro- 

 thorax, thick and strongly curved. Upper surface with a distinct 

 central furi-ow throughout but much broader apically, without 

 any central smooth line or carina, the shallow punctuation hidden 

 by brown scaling ; upper latei-al sulci almost obsolete, lower ones 

 ■deep and distinct ; scrobes directed to beneath base of rostrum ; 

 infei"ior basal furrow absent. Antennce ^yith sparse scaling ; scape 

 scarcely reaching eye ; the two basal joints of funicle subequal. 

 Prothorax transverse, apex hardly narrower than base, sides 

 strongly dilated but not acuminate, bi-oadest behind middle, dorsal 

 anterior margin convex, oculai- lobes strongly developed. Upper 

 surface almost plane, with large, rather distant, elevated tubei-cles, 

 lea.ving a distinct centi'al furrow containing a pronounced carina ; 

 apices of tubei-cles bare and with very short pale depressed setse, 

 interstices with dense scaling. Elytra ovate, shoulders sloping, 

 ■sides distinctly rounded, broadest befoi-e middle, apical processes 

 very short and blunt in $ . Upper surface convex, the stria? with 

 rows of large granules ; interval 1 with a row of small distant 

 tubercles ceasing behind middle ; interval 2 with only an apical 

 row of conical tubercles on the declivity ; intervals 3, 5, and 7 

 with rows of subconical tubercles of nearly even height, that on 3 

 ceasing abruptly behind middle ; intervals 4 and 6 without 

 tubercles ; apices of tubercles alone bare and with occasional shoi-t 

 setae, the rest of the sui-face clothed with brown or greyish scaling. 

 Legs with thin setiform scaling ; posterior tarsi with the joints of 

 the same width, 2nd and 3rd subequal in length, 1st longer. 



Gaboon (? — teste Pascoe). 



Type in the British Museum. 



Very similar in appearance to asper Mshl., but differs in having 

 •distinct rows of granules on the reflexed margins of the elytra, 

 in the faintness of the upper lateral sulcus on the rostrum and 

 the complete absence of the inferior transvei-se basal furi-ow. 



74. H. NYAS^, sp. nov. (Plate III. fig. 1.) 



Long. 16, lat. 7 mm. 



Head convex, closely but shallowly punctured, forehead with a 

 broad central depression ; anteocular furrows deep, but not 

 approaching dorsally. Rostrutn about as long as head and pro- 

 thorax, not incised dorsally at base, distinctly curved, Uppei- 

 .surface with a broad but shallow fui-row thi-oughout, which is 



