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



Head coriaceous, with dense brown scaling, convex on vertex, 

 forehead much depressed and sometimes with a faint central 

 carina ; anteocular fuiTOws absent. Rostrimi not incised at base, 

 as long as prothorax, thick, dilated at apex and somewhat cui-ved. 

 Upper sui'face densely squamose, with five carinje, the three 

 central ones converging towards base to form a stout erect 

 parallel-sided tubei'cle, which is bifid at apex, of these latter 

 carinse the outer ones are distinctly angulated above the insertion 

 of the antennae ; both pairs of lateral sulci uniting at base, the 

 lower pair narroAV, the upper broad and shallow towards base ; 

 scrobes very shallow, lateral ; inferior basal furrow distinct. 

 Antennce with the scape sinuate and more clavate than usual, 

 just reaching eye ; the two basal joints of funicle subequal, not 

 much longer than the others. Prothorax strongly transverse, 

 apex scarcely narrower than base, sides much ampliated, broadest 

 about middle, dorsal anterior margin slightly convex, ocular lobes 

 moderate. Upper surface convex, irregularly set with small 

 rounded tubercles, leaving a narrow central furrow containing no 

 carina and a broader smooth space on either side of it ; tubercles 

 bare, with depressed dark setse, the interstices with dense fulvous 

 scaling. Elytra ovate, sixbacuminate in 5 , shouldei'S sloping,, 

 sides somewhat ampliated, broadest rather before middle, apices 

 separately rounded in $ only. Uppei- surface convex, with 

 regular rows of strong ocellated punctures, visible through the 

 scaling; intem^'als 1, 3, 5, and 7 elevated and with rows of smooth 

 elongate tubercles, which are mostly contiguous so as to form 

 distinct costse ; intervals 2, 4, and 6 quite plane ; apices of tixbercles 

 bare and with depressed pale setae, the interspaces with dense 

 fulvous scaling. Legs with spaise fulvous scaling, except on the 

 entire apices of femora which aie densely squamose ; posterior 

 tarsi with the 3rd joint rather broader than the others, 2nd and 

 3rd subequal in length, 1st longer. 



Orange River Colony : Bothaville {Dr. H. Brauns). 



Type in the Stockholm Mviseum. 



The basal impressed line on the rostrum referred to by 

 Fahrajus in his description is caused by the junction of the lower 

 pail' of lateral sulci (an unusual character in this section) and is very 

 different from that mentioned in the case of ^nonitor, arinatus, &c., 

 which is due to the dorsal approximation of the anteocular furrows. 

 The entire absence of these latter furrows at once distinguishes 

 nasutus from all the other species having a rostral tubercle and a 

 short scape ; indeed in its rostral structure it is moi'e nearly allied 

 to the long-scaped species, such as talpa, &c., which also lack the 

 anteoculai- furrows. 



116. tH. CORONATUS Fst. 



R. corouatus Fst. Stett. ent. Zeit. 1891, p. 385. 

 "Long. 11, lat. 4-5 mm. 



" Oblongo-ovate, black,. subopaque, with dense ochreous scaling • 

 " rostrum subtricarinate and ai-med with an erect horn which is. 



