1898.] of the Coleoptera of South Africa. 385 



Trimiodytes gracilis. 



Elongate, rufous or testaceo-rufous, with the legs and antennae 

 paler, pubescence short, coarse, and scattered ; head large, a little 

 attenuate in front, and having between the eyes two foveae and two 

 sulci joined and rounded in front ; antennae strong, first joint quad- 

 rate, second ovate, both larger than the following ones, third sub- 

 obconic, fourth to eighth moniliform, becoming a little transverse, 

 ninth a little, tenth much larger, both transverse, eleventh large 

 ovate, acuminate ; prothorax regularly cordate, longer than broad, 

 lateral foveae larger than the median one, transverse sulcus faint 

 and angular ; elytra with shoulders faintly dentate, dorsal stria 

 shorter than half the length of the elytra ; metasternum convex. 



Male: Head a little larger than the prothorax, less attenuate in 

 front ; eyes large ; elytra much longer than broad, sides hardly 

 rounded, not attenuate at the base, shoulders oblique and well 

 defined ; last ventral segment faintly depressed ; posterior tibiae 

 gradually thickened towards the apex, their external margin dilated 

 before the tip in a small, rounded lamina. Length 1 "10-1 -50 mm. 



Female : Head a little narrower than the prothorax, more 

 attenuate in front ; elytra not much longer than broad, attenuate 

 at the base, without well-defined shoulders ; the sides are more 

 rounded. Length 1-10-1*20 mm. 



Compared to T. pcdustris this species is much more elongate, the 

 head is comparatively smaller, and the antennae are more clavate ; it 

 is very different from T. setifer, owing to the much more elongated 

 shape and the absence of transverse sulcus in the frontal part of the 

 head. It resembles much more T. brevipennis, but the sulci of the 

 head are not so deep, and the prothorax and the elytra are longer. 



Hab. Cape Colony (Port Elizabeth, Uitenhage). 



Trimiodytes cephalotes, 

 Plate XVIII., fig. 23. 



Elongate, pale rufous, pubescence short, coarse, and sparse ; head 

 large, transverse, abruptly truncate and tri-dentate, tri-fasciculate in 

 front, between the eyes are two small foveae and two sulci ending in 

 front on each side of the median spine, epistoma provided with a 

 blunt tubercle ; eyes large ; antennae elongate and slender, first joint 

 long, sub-obconical , second ovate, both much larger than the following 

 ones, third obconical, fourth to eighth moniliform, fifth and seventh 



