of the Group Ceranibycinse. 31 



angustimque sulcato ; prothorace supra transversim leviterque 

 plicato, disco impressionibus duabus obliquis postice transversim 

 eonnexis, autice late divergentibus ; elytris pube grisea sericea, 

 nonnihil rautabile, obtectis, dimidio basali sparsim punetulato, 

 apicibus subtruneatis, muticis ; processu prosterni postice sub- 

 verticali ; parte laterali metasterni antice in processu parvo pro- 

 ducta ; antennis ( £ ) corpore brevioribus. 

 5 . Long. 17-19, lat. 4£-5 mm. 



Hob. Senegal, Port Natal. 



Head with a distinct but narrow groove between the eyes 

 above, with the eyes rather large, not very widely separated 

 below, with the underside not distinctly grooved. Prothorax 

 somewhat irregularly, transversely, and not strongly wrinkled 

 above ; the disk with two oblique slightly arcuate impressions, 

 joined by means of the bisinuate basal transverse groove 

 behind, and anteriorly widely diverging, with the space 

 between less distinctly wrinkled than the parts external to 

 them. Elytra with a silky grey pubescence giving rather 

 feeble moire reflexions. The an tero- lateral process of the 

 metasternum is distinct enough, without completely cutting 

 off the epimeron from the intermediate cotyloid cavity. 



This species, of which I have only seen female specimens, 

 seems somewhat nearly allied to a South-African species 

 which I believe to be very near, if not the, Tapinolachnus 

 Gyllenhali of FahraJU3. 



Pachydissus (Diortkus) simpler, White. 



Cerambyx hdosericeus, Oliv. (nee Fabr.). 

 Hammaticherus simplex, White. 

 Cerambyx vernieosus, Pasc. 

 Pachydissus inclemens, Thorns. 

 Hammaticherus heterocerus, Dup. Dej. Cat. 

 Hammaticherus sericeus, Dej. Cat. 



Head feebly grooved above between the eyes. Antenna? 

 in the male more than half as long again as the body, with 

 the third and most of the following joints fringed with short 

 and delicate grey hairs underneath ; with the third joint much 

 longer than the fourth, both these joints nodose at the apex ; 

 with the cicatrice of the scape limited by an incomplete 

 carina. Prothorax rounded at the sides, irregularly and not 

 very strongly rugose above ; the disk with some not very 

 distinct longitudinal and oblique grooves, together forming a 

 somewhat crown-shaped impression. Elytra with a unicolo- 

 rous, greyish, slightly glossy pubescence, somewhat thinner 

 on each side before the middle, and there revealing a reddish- 

 brown or dark brown derm ; apices truncate, shortly spined 

 at the suture. Femora feebly carinate on each side. 



