334 Transactions South African Philosophical Society, [vol. xiii. 



uni-dentate on the upper edge ; tarsi moderately long, the basal 

 joints of the hind ones almost spinose on each side in both sexes ; 

 under side not densely pubescent on the pectus ; sternal process 

 horizontal, moderately long, acuminate, marginate all round and 

 grooved in the centre nearly to the apex. 



The shape of the mentum and also the massive body connect the 

 species included in this genus with Goliathus. It is, however, the 

 only true Cetonid known to me in which the mentum is provided 

 at the base with a vertical process ; in the Cremastoch ilini this is 

 a common enough feature. The South African species has a very 

 wide range in South Africa, and another species is recorded from 

 Eastern Africa. 



HVPSELOGENIA GEOTRUPINA, Billb. 



Schonh., Syn. Ins., i., 3, p. 461. 

 albojJitnctata, Gory and Perch., Monog. Cet., p. 122, pi. 17, fig. 5. 

 billbergi, Thorns., Typi Cetonid., 1878, p. 7. 

 concava, Gory and Perch., Monogr. p. 121, pi. 17, fig. 4. 

 goryi, J. Thorns., Typi Ceton., 1878, p. 8. 



Piceous, moderately shiny, occasionally spotless or without bands 

 on the prothorax (concava); spotless but with a narrow fiavescent 

 marginal band on the prothorax ; with a narrow marginal band on 

 the prothorax and with scattered fiavescent macules on the elytra 

 and a band of the same colour in the posterior part (gcotrujnna) ; or 

 with the elytra similarly maculated but with a broad marginal band 

 and a discoidal narrower one on each side of the prothorax 

 [billbergi). 



Male: Head very concave ami deeply punctured, the reflexed 

 horn is usually sharply tri-dentate at apex, but occasionally also 

 the two outer teeth arc blunted laterally, and the median one is 

 only moderately sharp ; prothorax with a very indistinct prominence 

 in the centre of the anterior margin, moderately closely punctate 

 but with the median part of the disk usually smooth ; scutellum 

 smooth; elytra indistinctly bi-costate on eacli side and having series 

 of punctures on the dorsal part, but on the defiexed sides these 

 punctures are not seriate; pygidium with two fiavescent macules or 

 without any; abdomen impunctate ; pectus verj deeply and closely 

 punctate, briefly pubescent, the pubescence black. 



Female : Clypeus deeply incised in front with the angles sharply 

 reflexed, or with the anterior part broadly emarginate {goryi) and 

 having in the centre a carinate tubercle ; the prothorax has a blunt, 

 hook-like tubercle in the anterior part above the concave frontal 



