1904. ] Catalogue of the Coleoptera of South Africa. 275 
Head with one median, raised, longitudinal line 
and a smooth elongated patch on each side of it ; 
prothorax with three raised denuded longitudinal 
PAOOGIIUTIOR Se - sc) aici crs Voaye Pale, peice Ce) tre Mee PPORGEG: 
RHABDOPHOLIS COSTIPENNIS, Bohem., 
Plate XLIII., fig. 23. 
Insect. Caffr., ii., p. 84. 
Chestnut-brown, covered with contiguous elongato-ovate scales, 
the pectus bears only a few scales but is thickly clothed with an 
appressed, slightly flavescent pubescence, only the median and 
supra-marginal keels on the prothorax and the sharp edge of the 
costules on the elytra are bare; head deeply and _ irregularly 
punctured, separated from the clypeus by a broadly arcuate keel, 
and having a conspicuous, raised longitudinal, median line, reaching 
from the clypeal suture to a very short distance from the base, in 
the male the clypeus is short, parallel, but slightly dilated obliquely 
towards the anterior part which is straight but plainly sinuate in 
the centre, and with the outer angles bluntly rounded, it is concave 
along the anterior margin which is very reflexed, especially in the 
centre, in the female the clypeus is shorter, slightly narrowed 
laterally towards the anterior part which is deeply and broadly 
emarginate ; prothorax only slightly narrowed laterally in the 
anterior part, nearly sub-parallel thence to the base, but slightly 
rounded before the median part, posterior angles sharp, the discoidal 
part is not much convex and is covered with irregular punctures, in 
the centre there is a longitudinal, denuded, slightly raised line and a 
conspicuous, also denuded keel running close to and parallel with 
the outer margin; scutellum cordate, sharp at the tip; elytra 
elongate, somewhat sinuate laterally before the median part, and 
somewhat ampliated thence, more so, however, in the female than 
in the male, and a little less convex in the middle in this sex than in 
the female, they have each nine sharp cost, including the juxta- 
sutural one, and the space between the outer costa and the margin 
is broader than the other intervals ; propygidium clothed with scales 
in the uncovered part only; pygidium strongly slanting backwards 
and elongated in both sexes and broadly triangular ; penultimate 
abdominal segment broader than the one preceding ; intermediate 
and posterior tibize plainly grooved on the outer part, and having a. 
very rudimentary trace of an oblique ciliate keel in the female only ; 
anterior tibie bi-dentate outwardly, or the teeth sharper in the 
female than in the male. 
