112 Descriptive Catalogue [1897. 



constricted in the anterior part towards the antennal tubercle, which 

 is subdivided, and having behind the median part two minute foveae 

 and two oblique very nearly obliterated sulci ; eyes set towards the 

 middle ; first joint of antennae long, cylindrical, slightly sinuate, 

 second elongato-quadrate, third to fifth elongate, subcylindrical and 

 slightly increasing in length, sixth quadrate, the others different in 

 each sex ; prothorax oblong, rather abrupt and more attenuate in 

 front, nearly straight laterally, outer sides with a large, transverse 

 fovea filled with whitish glandulose hairs ; elytra rather elongate, 

 slightly attenuate at base, shoulders oblique and well pronounced, 

 two foveae filled with whitish glandular hairs at base, dorsal sulcus 

 short ; abdomen shorter than the elytra ; metasternum rather con- 

 vex, hardly impressed ; anterior trochanters and femora tuberculate. 



Male : Seventh joint of antennae a little longer than the preceding 

 one, obtusely but strongly produced outwardly at apex, eighth not 

 narrower than the sixth, but lenticular, ninth large, subquadrate, 

 slightly transverse and rounded at angles, tenth much smaller, 

 tranverse, eleventh rather elongate, truncate at base, acuminate 

 at apex, slightly compressed, slightly produced inwardly and incised 

 before the base, depressed inwardly and deeply excavated in a sub- 

 rotund way. 



Female : First to fifth joints of antennae a little shorter than in 

 the male, sixth to seventh quadrate, eighth transverse, ninth to tenth 

 larger than the others, transverse, eleventh ovate and obtusely 

 acuminate. Length 2 -90 mm. 



This species is very rare. 



Hob. Cape Colony (environs of Cape Town, Constantia), Stellen- 

 bosch. 



PSELAPHOCERUS ANTENNATUS, 



Plate XVII., fig. 13. 



This species is very similar to the preceding one, and differs only 

 in the following points : The head is not quite so long, and the foveae 

 are larger but nearly obliterated ; the first to fifth joints of antennae 

 are a little shorter and thicker ; the prothorax has a well-defined 

 notch on each side before the median part. 



Female : Sixth joint of antennae tranverso-quadrate, seventh more 

 than twice larger than the preceding one, transverso-quadrate and 

 slightly produced externally at apex, eighth lenticular, ninth large, 

 transverse, rounded externally, tenth a little narrower and slightly 

 transverse, eleventh truncate at base, attenuate at tip and obtuse, 

 depressed inwardly and with the side almost roundly excavated. 



Female unknown. 



