€4 MR. G. A. K. MARSHALL ON COLEOPTERA [Jail. 19, 



Gape Colony : Uitenhage {Rev. J. O'JVeii), Algoa Bay (i)/-. ff. 

 Brcmns). 



Type in the Stockholm Museum. 



The type of pollinarius Gyl. from Drege's collection is in the 

 Stockholm Museum, and it certainly has not a granulated rostrum 

 as described by Gyllenhal. It differs "from the type of ferus 

 in having the rostrum convex at the base, the central furrow 

 being there obsolete, and the tubercles on the prothorax are not 

 so regularly arranged. The distinction given by Gyllenhal that 

 the punctures on the elytra in ferus are replaced by granules in 

 pollinarius is unreliable, for it depends largely upon the incidence 

 of light upon the insect as to whether the strife be regarded as 

 coarsely punctured or granulate. The difference in the rostrum 

 in extreme examples of the two forms is certainly noticeable, but 

 in the series which I have examined there is so much variability 

 in this respect that I cannot regard the character as of specific 

 value. 



71. H. MAMMILLATUS Gyl. 



H. mammillatus Gyl. Schh. Gen. Cure. i. p. 476 (1833). 



Long. 17-19, lat. 8^-9 mm. 



Head slightly convex, indistinctly punctvired, sparsely squamosa 

 and with a central fovea near base of rostrum ; anteocular furrows 

 deep. Rostrimi not incised at base, about as long as head and pro- 

 thorax, thick, strongly curved. Upper surface convex at base, 

 shallowly excavate towards apex, strongly punctured and squamosa 

 except along a smooth central line ; lateral sulci distinct, subequal, 

 not meeting at base ; scrobes directed beneath base of rostrum ; 

 inferior basal furrow absent. Antennce with dense brownish 

 scaling ; scape not reaching eye ; the two basal joints of funicle 

 subequal. Prothorax distinctly transverse, apex narrower than 

 base, sides strongly dilated, retuse, broadest about middle, dorsal 

 anterior margin slightly convex, ocular lobes strongly developed. 

 Upper surface almost plane, with a shallow transverse impression 

 just behind apex, set with small rounded distant tubercles, leaving 

 a central furrow containing a low carina ; the tubercles are more 

 elevated laterally, have their apices bare and each with a depressed 

 pale seta ; interstices with dense brown scaling. Elytra broad, 

 oblongo-ovate, shoulders roundedly prominent, sides subparallel 

 to beyond middle, apical processes short and blunt in both sexes. 

 Upper surface slightly convex, with rows of shallow punctures 

 separated by scale-covered granules ; interval 1 with a row of 

 small shiny granules ceasing beyond middle ; interval 2 with a 

 row of granules to beyond middle and thence with closely-set 

 conical cristate tubercles down the declivity, which is very steep ; 

 intervals 3, 5, and 7 with complete rows of small subconical 

 tubercles, but that on the first is sometimes interrupted on the 

 declivity ; intervals 4 and 6 without tubercles or at most with 

 one or two isolated ones ; extreme apices only of tubercles bare 

 and each with a pale depressed seta, interstices densely clothed 



