410 Descriptive Catalogue [1B98. 



however, more rounded externally, but the antennae are very 

 different. 



Male: Antennae long, first joint cylindrical, elongate, and punctate, 

 second a little longer than broad, second to sixth the same shape and 

 width, but increasing in length so that the sixth is nearly a third 

 longer than the second, seventh about the same length as sixth, 

 obconical and truncate at both ends, but the apex is very obliquely 

 truncate, eighth the same width as sixth, transverse, ninth about 

 twice the size of eighth, lenticular, tenth still larger, irregularly 

 lenticular, with the under part largely foveated, eleventh large, 

 very briefly ovate, with the under part largely excavate, the excava- 

 tion transverse near the base, longitudinal on the inner side, and 

 with a long brush of hairs before the apex ; anterior trochanters 

 with a blunt tubercle, absent on the femora, shoulders oblique, well 

 defined. Length 3*10 mm. 



Female: Antennae a little shorter, second joint nearly square, third 

 to fifth a little increasing in length, fifth somewhat conical, sixth 

 shorter, seventh equal to sixth in length but sub-conical and broader 

 at apex, eighth transverse, ninth much larger, lenticular, tenth 

 similar to ninth, but a little larger, eleventh briefly ovate ; elytra 

 much attenuated at base, no shoulders, tubercles of the anterior, 

 trochanters much stronger, a small tubercle on the femora of the 

 same legs. Length 2- 80-3* 00 mm. 



This species belongs to the first group of the genus owing to the 

 shape of the palpi, but the seventh joint of the antennae is much less 

 dilated than in P. peringueyi and P. divcrsus, with the eighth much 

 larger, consequently the antennae is perfectly straight, whilst it 

 appears somewhat angulate in these two species. 

 Hab. Cape Colony (Stellenbosch and Newlands). 

 In the descriptions of P. peringueyi and P. divcrsus I omitted to 

 mention that in the male the shoulders are oblique and well marked, 

 and wanting in the female. 



PsELAPHOCERUS ACUTISPINA, 



Plate XVIII., figs. 11, 12. 



Stout and attenuate in front ; piceous with the elytra dark red, the 

 antennae and legs ferruginous, or entirely flavous (presumably 

 immature), pubescence long, dark, and mixed with fulvous hairs, 

 palpi testaceous. Head long, narrow, a little attenuate in front, 

 somewhat transversely depressed in front with the antennal tubercle 



