AXXALS OF THE Tr.1NSVAAL MuSEUM. 



very large ones in the median area and near the anterior margin^;, in this- 

 resembhng sfiiujiiinctis^ Ijut^ unlike sdiH/iiiiiciis^ the shield is as wide as 

 long. 



it*, cupeiisis closely resembles ercrfsi, except that the eyes are Hat, 

 marginal grooves well developed, and a tew large punctuations in the 

 anterior part {IX, r). 



R. sanguineus has a shield much longer than wide and very narrowly 

 rounded behind. The eyes are situated near the posterior third of the- 

 length. The ])unctuations are mostly tine, and distant, on the whole 

 surface of the sliield. In the median area, the base of tlie marginal 

 groove, and the marginal areas, are a fevv^ irregularly distributed very large 

 punctuations (iX, r). The doubtful species punctafissi'iii us is ])r()l)ably 

 synonymous with xuinjuiueus, as all the characters a,gree. 



In a ppendicului us^ the shield is slightly longer than wide, bnt not so 

 noticeably so as in sanguineus. The eyes are at about the middle of the 

 Jeiigth or the sliield. 'lire tine punctuations are larger than in sanguineus,. 

 and thickly distributed over all the surface, exce^^t in an area on each 

 side near the eyes, where they are fewer in number. The large punctua- 

 tions are mostly confined to the anterior and lateral portions of the 

 shield. The porose areas on the base of the rostrum are separated by 

 more than their diameter, thus separating them from sanguineus^ where 

 these porose areas are only about a diameter from each other (/X, d). 



In ljursa the dorsal shield is plainly as broad, or broader, than long,, 

 and hexagonal in outline. The punctures are equal, fairly fine, and e\enly 

 distributed over the whole surface ; the porose areas in the rostrum are 

 also separated by more than their diameter. 



]n sinius the shield is as wide as long, with the sides rounded ; in 

 fact it often appears nearly circular in outline. The colour is nearly 

 black, instead of dark brown, the usual colour, and shiny as in the male. 

 The fine punctuations are numerous, evenly distributed, and usually very 

 fine and superficial, often scarcely visible. The large punctuations are 

 very large and few in niini1)er, situated in the median area, at the bottom 

 of the marginal grooves and in the anterior portions of the marginal 

 areas. Both the cervical and marginal grooves are continued to tiie 

 posterior margin of the shield, where they meet (IX, f). 



In miens we find a shield similar to that of appendiculafus. It is 

 oval in outline, but scarcely longer than wide ; the marginal grooves are 

 very superficial. The ])unctuations are unequal, the small ones numerous 

 and superficial, while the large ones are situated in the median area and 

 near the anterior edges, and not so scattered as in appendiculafus. Like 

 appendiculafus, the porose areas of the rostrum are separated l)y more 

 than their diameter. 



The females of lunulafus resemble those of simus, as regards the dorsal 

 shield, which is, however, slightly more elongate, of a brown colour, and 

 with the fine punctuations slightly larger and more ]u-oininent. The large^ 

 punctuations are smaller than in simus^ and not so numerous. The 

 cervical and marginal grooves are not so long, and do not meet at the- 

 posterior margin of the shield (/X, g). 



