1904.] Catalogue of the Coleoptera of South Africa. 115 



(This Sub-Family can be divided into two sections.) 



I. Abdominal segments free or partly free. 

 Maxillae without any inner teeth Pachypodini. 



II. Abdominal segments fused together. 

 Maxillee with strong inner teeth. 



Antennal club 7-jointed in both sexes Sparrmannini. 



Antennal club 3-jointed in the female Melolonthini. 



Teibe PACHYPODINI. 



Body without scales or squamose hairs,* in most cases densely 

 hairy on the pectus and along the base of the prothorax ; ligula 

 fused with the mentum, both either broad or reduced to a mere 

 stem-like process, maxillae edentate, but with both lobes occasionally 

 sharp, labial palpi inserted either laterally or on the outer face of the 

 mentum, basal joint occasionally obliterated; antennae 8-10-jointed, 

 number of club joints variable in both sexes, clypeus either slightly 

 blunt in front with the angles rounded, parabolic or semicircular 

 with the apical margin always strongly reflexed, vertical or slanting 

 backwards in front ; eyes always large, briefly divided by a short 

 canthus, frontal part keeled laterally or not and having often a trans- 

 verse prominence or keel along the vertex ; prothorax short, sloping 

 in front ; scutellum cordate ; elytra depressed on the dorsal part, 

 seldom plainly costulate or striate and with a humeral callus, but no 

 apical one ; abdomen either moderately convex or strongly com- 

 pressed laterally in the male ; the segments free or deeply imbricated, 

 the ultimate one provided with a broadly extensible membranaceous 

 hinge ; anterior coxae sub-vertical for at least one-third of their 

 length, and conical at apex ; hind femora swollen ; hind tibiae 

 broadly dilated ; episterna broad and separated by a sinuose line, 

 often carinated in the upper part, from the epimera which are nearly 

 equally broad. 



The non-soldered segments of the abdomen and the edentate or 

 nearly edentate maxillae are really the only characters distinguishing 

 this Tribe from the Melolonthini. Many of the characters enume- 

 rated above need, however, some explanation, in so far that the 

 South African species and genera are concerned. The shape of the 

 upper lobe (galea) of the maxillae varies considerably : it is either 

 hollow, compressed, arcuate or laminate, denticulate or serrulate* 



* Onochceta is an exception, it has squamose hairs on the intervals of the elytra. 



