46 Transactions South African Philosophical Society. [Vvow. Xt. 
base of the strongly reflexed outer angle, the median longitudinal 
clypeal keel is short, but conspicuous, the frontal transverse keel is 
very highly raised, the punctures are deeper on the clypeal than in 
the frontal part, and more numerous along the base; prothorax 
of the same shape and with the same sculpture as TZ’. vagus ; 
scutellum similar; elytra very slightly ampliated laterally past the 
median part, and with the intervals deeply, moderately closely and 
somewhat roughly punctate, epipleural fold with a series of extremely 
short hairs; under side as in 7’. vagus, but the punctures of the 
abdominal segments, apart from the setigerous row, are much 
shallower; the anterior tibiz are tri-dentate, but the upper tooth is 
blunt. The shape of the clasps of the genital armature of the male 
is rightly delineated in fig. 29; these same clasps as figured under 
the number 30 have been somewhat distorted in the mounting. 
Length 9-10 mm.; width 6-7 mm. 
Hab. Southern Rhodesia (Salisbury). 
TROCHALUS INOPS, n. spec. 
Chestnut-brown, shining, iridescent; antenne flavescent, except 
the two basal joints of the pedicel, which are sub-ferruginous; it is 
much smaller than 7’. mashunus and plainly ovate; the clypeus is as 
sharply tri-dentate in front, and the lateral margin as sharply aculeate, 
but the median, longitudinal tubercle is hardly distinct; the anterior 
tibize are bi-dentate outwardly; the punctures on the prothorax and 
scutellum are equally deep; the elytra are also as deeply punctate, 
but apart from the juxta-sutural one the strie are nearly 
obliterated. 
Length 5-6 mm. ; width 4 mm. 
Hab. Southern Rhodesia (Mazoé), Ovampoland. 
TROCHALUS EXASPERANS, Nn. spec. 
Bronze, with an iridescent sheen turning to reddish-bronze, 
antenne flavescent; intermediate in shape between 7. mashunus 
and 7’. rubricatus, the elytra are a little more ampliated laterally, 
the clypeus is not so sharply tri-dentate, the punctuation is the same 
as in 7. mashunus and different from that of 7. rubricatus, in which 
the aciculate punctures, especially of the elytra, are hardly distinct, 
and in which also the antennal club of the male is much longer ; 
the shape of the clasps of the genital armature resembles more that 
of 7. mashunus, from which it mainly differs in the more ampliato- 
ovate elytra, the more bluntly tri-dentate clypeus, a longer antennal 
