11-8 MR. G. A. K. MARSHALL ON COLEOPTERA [Jan. 19, 



small conical tubercles, sometimes wanting ; the remaining in- 

 tervals with regular complete rows of small, conical, closely-set 

 tubercles — except that on interval 4, which ceases at the summit 

 of the declivity ; the tubercles increase slightly in size towards 

 apex, being subcristate on the declivity of intei'val 2. The entire 

 surface, including the apices of the tubercles, is densely clothed 

 with variegated grey and brown scaling. Legs short and thick, 

 with dense pale scales and setfe ; posterior tarsi with the joints of 

 about the same width, 2nd and 3rd joints subequal in length, the 

 1st distinctly longer. 



Namaqualand : O'okiep {L. Perhiguey). 



Type in the British Museum. 



A well-marked species, approaching the aberrant dregei Gyl., 

 but apart from being smaller and of a difierent colour, the rostral 

 horn is much larger and its apices divergent ; the thoracic tubercles 

 are smaller, more conical and more closely set ; the prosternura has 

 a strong conical projection just in front of the anterior coxfe ; 

 while the large inti'a-apical tubercular prominence of dregei is 

 represented by a very slight elevation. The prosternal projection 

 is a unique character in the genus. 



113. tH. armatus Fahr. 



H. aronahos, Fahr. Of v. K. Vet.-Akad. Forh. 1871, p. 217. 



Long. 10|-12, lat. 5-5^ mm. 



Head coriaceous and with brown scaling, convex on vertex, 

 forehead flattened, but without any carina or fovea ; anteocular 

 fuiTows distinct, approaching above. Rostrum not cut oif from 

 head by a basal incision, as long as prothorax, stout, cui-ved and 

 dilated towards apex. Upper surface rugose and squamose, with 

 five carina, the median one being nari'ower and sharper than the 

 others, which are more obtuse and unite apically on each side, the 

 three central carina? converge towards base to form a stout erect 

 parallel- sided tvibercle which is emarginate at apex ; upper lateral 

 sulci broad and imiting at base, the lower pair mvich naiTower ; 

 scrobes deep, lateral and oblique ; inferior basal furrow very 

 deep. Antennce short and thick ; scape scarcely reaching eye ; 

 the two basal joints of funicle subequal. Prothorax as long as 

 broad, apex and base of equal width, sides ampliated, broadest 

 rather before middle, dorsal anterior margin convex, oculai- lobes 

 well developed. Upper surface convex, closely set with rounded 

 tu.bercles, leaving a very indistinct central furrow without any 

 carina ; tubercles bare and with depressed dai-k setfe, the inter- 

 stices with brown scaling. Elytra ovate, scai'cely narrower in <S , 

 shoulders roundedly prominent, sides slightly ampliated, broadest 

 rather before middle ; apical processes absent. Upper surface 

 convex, with rows of shallow punctures separated by small 

 granules and scarcely visible through the scaling ; interval 1 with 

 a row of small rounded tubercles ; intervals 3, 5, and 7 with rows 

 of large, smooth, elongate distant tubercles ; intervals 2 and 4 

 plane ; 6 with two to four isolated tubercles ; tubercles bare, shiny, 



