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. 
Maxille without any inner teeth... .. .. .. «2 .. «. «. Pachypodini. 
II. Abdominal segments fused together. 
Maxille with strong inner teeth. 
Antennal club 7-jointed in both sexes... ..  .. 0... 00. we) ee) Sparrmannini. 
Antennal club 3-jointed in the female... .. .. .. .. «.. «. Melolonthini. 
HRB HeE AO Eber O DENTE 
* 
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, maxillee edentate, but with both lobes occasionally 
sharp, labial palpi inserted either laterally or on the outer face of the 
mentum, basal joint occasionally obliterated ; antenna: 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 coxe sub-vertical for at least one-third of their 
length, and conical at apex; hind femora swollen; hind tibie 
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 maxille are really the only characters distinguishing 
this Tribe from the Melolonthim. 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 maxillee varies considerably: it is either 
hollow, compressed, arcuate or laminate, denticulate or serrulate, 
* Onocheta is an exception, it has squamose hairs on the intervals of the elytra. 
