466 Transactions South African Philosophical Societij. [vol. xii. 



of Fiihroeus' type, I cannot definitely state that my examples are 

 identical, but I believe it to 1)6 the case. 



Length 12-14 mm. ; width 7-8 mm. 



Hah. Southern Ehodesia (Salisbury, Zambesi Eiver). 



Trox (Omorgus) consanguineus, n. spec. 



This species is also closely allied to T. incultus and T. mclancholicus. 

 It is larger than the second, but not quite as large as the first, from 

 which it differs also by the less elongate facies owing to the elytra 

 being distinctly diagonally ampliate laterally past the shoulders, and 

 also much more so in the posterior part ; above the two frontal 

 tubercles on the head there is a longitudinal, very distinct, median 

 carina ; the lateral margins of the prothorax are very deeply incised 

 at about the median part instead of being sinuate ; on the disk the 

 wall of the basal impression divided by the median longitudinal 

 carina is not connected with the anterior one, and the whole surface 

 is covered with a thick, earthy coating ; the sculpture of the elytra 

 approximates to that of T. mclancholicus, but the third row on each 

 side is much more sharply costate, and the intervals are much more 

 deeply pitted, the pits having slightly raised walls ; the genital 

 armature resembles more closely that of T. incultus, Imt the outer 

 forceps are not so sharply incurved at tip, and the carinate walls of 

 the upper median lobe are not much raised, are very much shorter, 

 hardly reaching the median part, and are fully dentate at tip, the 

 tooth being nearly horizontal instead of vertical, as in T. incultus. 



Length 14 mm. ; width 9 mm. 



Hc(h. Southern Ehodesia (Victoria Falls). 



Tkox (Omorgus) tuberosus, Klug, 

 Plate XXXIX., fig. 19. 

 Monatsb. Berl. Ac, 1855, p. 657. 

 T. rusticus, Filhr., Insect. Caffr., ii., p. 379. 



Black, with the tubercles on the elytra moderately shining, and the 

 intervals of the prothorax coated with an earthy substance ; joints of 

 antennae, except the basal one, ferruginous red, club flavescent ; head 

 roughly punctured, frontal tuliercles normal, prothorax five-dentate 

 laterally, basal tubercle separated from the walls of the longitudinal 

 median sulcus, lateral tubercle bi-partite, another tubercled not 

 always well defined and smaller, is seen near the median part of the 



