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



5. H. RUGIROSTRIS Gyl. 



//. ritgirostris Gyl. Schh. Gen. Cure. v. p. 791 (1840). 



Long. 17-20, lat. 7-8^ mm. 



Ifead strongly convex, both on vertex and forehead, bare and 

 with large scattered punctures ; anteocular furrows distinct. 

 Rostrum, cut off from head by a deep transverse basal incision, as 

 long as head and prothorax, thick, strongly curved and gradually 

 dilated to apex. Upper surface convex, slightly excavate neai- 

 apex only, deeply and rugosely ptinctured throughout; lateral 

 sulci deep, of equal length, subparallel, the upper pair alone 

 uniting at base ; scrobes deep and lateral ; inferior basal furrow 

 very deep. Antennce. with scape just reaching eye; the two basal 

 joints of funicle subequal. Prothorax somewhat transverse, apex 

 scarcely narrower than base, sides rounded, broadest rather 

 behind middle, dorsal anterior margin truncate, ocular lobes 

 strongly developed. Upper surface convex, closely set with low 

 rounded tubercles, leaving a very indistinct central furrow ; 

 tubercles without setfe, both they and the interstices bare of 

 scaling. Elytra ovate, shoulders roundly prominent, sides slightly 

 ampliated, broadest before middle, apices produced into a very 

 short blunt callosity in S , moi-e acuminate and subcontiguous 

 in $ , Upper surface with shallow sulci containing rows of large 

 ocellated punctures, often separated by low granules ; all the 

 intervals with rows of small closely set depressed tubercles, those 

 on intervals 2 and 4 ceasing at the declivity, those on 1 and 3 

 continued to apex, being conical and subcristate on the declivity ; 

 scaling absent, tubercles rarely with depressed dark setse. Legs 

 with scattered pale setje ; posterior tibiae veiy strongly curved 

 in (S only ; posterior tarsi with the three basal joints subequal in 

 length and breadth. 



Namaqualand : Klipfontein and O'okiep (X, Peringuey). 



Type in the Stockholm Museum, 



This is a scarce species in collections, but Mr. Peringuey states 

 that he found it commonly in Little Namaqualand at from 3000 

 to 4000 ft. under a spiny species of Mesemhryanthemum. 



A close ally of verrucosus L. and oaxtis Mshl., resembling the 

 latter in the absence of the rostral furrow. Apart from its 

 smaller size and more regularly granulate elytra this species differs 

 from oaxus : (1) in the coarse punctuation of the base of the 

 rostrum, (2) in having the lateral sulci on the rostrum of equal 

 length, and (3) in having the two basal joints in the funicle of 

 the J equal, or even with the first very slightly longer than the 

 second. 



6. H. SERIENODOSUS Gyl. 



H. serienodosus Gyl. Schh. Gen. Cure, i, p. 490 (1833) ; FShr. 

 Schh. op. c. V. p. 779 (1840). 

 Long. 12-14, lat. 5-6 mm. 

 Head convex, with obscure punctuation and sparse scaling. 



