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XIII. A Decade of new Cetoniidffi. By J. O. West- 

 AvooD, M.A., F.L.S., &c, 



[Read June 4tli, 1879.] 



(Plates III. and IV.) 



Genus novum, Nyassinus. 



Caput mediocre, clypei apice reflexo; in mare angustato. 

 INIandibula} lata3 curvata3 apice obtuso, intus lobo setoso 

 instructa3. Maxillns lobo apicali elongato curvato, apice in 

 dentem acutum producto, lobi interni apice bidentato. 

 ISIentum oblongum subquadratum, extus gibbosum, et 

 pone basin paullo constrictum. Prothorax subliexagonus, 

 angulis posticis obtusis retroproductis, canali dorsali 

 impressus. Elytra oblonga, extus pone basin emarginata, 

 singulo carina submedia notato ; tubercula ordinaria 

 spiraculifera prominentia. Abdomen maris infra basi 

 impressione ovali parum profunda notatum. Pedes breves 

 crassi, tibiis anticis extus fere inermibus praisertim in 

 mare, in foemina prope medium parum angulatis. Tarsi 

 5-articulati. Corpus supra plus minusve villosum. Pro- 

 sternum omnino inerme. Mesosternum parvum angustum 

 apice obtusum vix prominens. 



This new African genus differs from Gemichus, Lisso- 

 genias and Scaptobius in the simple condition of the 

 anterior tibite, which in the females alone exhibit the 

 slightest approach to a central tooth on the outer margin 

 by a small angulation. Froiai Camocliilus it differs in 

 having the upper lobe of the maxilla3 sim])le, terminating 

 in a sharp sickle-shaped point. The five-jointed tarsi 

 remove it from Callfjnomes, and the structure of its 

 sterna separate it from Cymophorus and its allies. 



The two species here described have been discovered in 

 the neighbourhood of Lake Kyassa. 



Species 1. Nyassinus macidipes. (PI. III. fig. 1.) 



Obscurus ; fnscus, luteo, brunneo nigroque varicgatus ; 

 pedibus luteo-fulvis, tibiis in medio nigro-maculatis tar- 



TRANS. ENT. SOC. 1879. — rAKT II. (jULY.) 



