South African Coleopterous Fauna. 209' 



with the pubescence longer ; upper side of abdomen glabrous, except 

 the last segment, shiny, impunctate, the second segment bears two' 

 short spines on the edge of the straight lamina, each one equi-dis- 

 tant from the outer side and the median part, on the third segment 

 there is a lateral, small tubercle, and four small, and granule-like, set 

 two by two, in the middle of the sixth, the last one is pubescent and 

 has at the apex a broad and deep cupuliform impression. 



This species is easily distinguished from all the South African 

 ones by the extraordinary longitudinal keel, or laminate tubercle of 

 the frontal part, and the cupuliform impression of the last segment 

 of the male. 



Length 9 mm. ; width 2i mm. 



Hal. Southern Ehodesia (Salisbury). G. A. K. Marshall. 



MYBMEDONIA SIMPLEX, n. sp. 



Head black, with the labrum piceous, prothorax red ; elytra black,, 

 with the basal part narrowly rufescent, abdomen black, with the two 

 basal abdominal segments rufescent, legs flavescent, antennae chest- 

 nut-brown, with the three basal joints flavescent and of the normal 

 shape, 4-9 sharply conical, compressed at the base, slightly longer 

 than broad, 9-10 of equal width and length, 11 hardly longer than 9 

 and 10 taken together, slightly narrower and oblong, frontal part 

 with an anterior, strongly convex protuberance, punctulate and 

 briefly pubescent ; prothorax longer than broad, slightly sinuate 

 laterally, narrower at base than apex with both angles rounded, the 

 sides are not depressed, the discoidal part is slightly convex, the 

 very briefly pubescent punctures are not very closely set, the median 

 longitudinal line is obliterated, and there is a small, round impres- 

 sion in the centre of the base ; upper part of abdominal segments 

 glabrous, shiny, except the last one which is pubescent, the three 

 penultimate ones have a marginal row of five setigerous punctures,, 

 and the second segment is simple. 



Length 6|- mm. ; width 2 mm. 



Hal. Natal (Newcastle). E. Hunt. 



MYEMEDONIA UNCINATA (Fauv. in litt.}, n. sp. 



Male : Testaceous-red, or occasionally pale testaceous, fifth and 

 sixth abdominal segments fuscous, frontal part of head black, and 

 with a conspicuous compressed tubercle in the anterior part, vertex 

 finely punctulate and briefly pubescent ; antennae long, reaching to 

 about the median part of the elytra, first joint long, flail-like, second 



