South- African /Species 0/ Cossonus. 401 



9. Cossonus chirindensis, sp. n. 



Long. 5-5|, lat. 1^-1 o min. 



IJead subcoiiical, im punctate on vertex ; forehead finely 

 punctured and with a deep elongate fovea ; eyes prominent. 

 Bostriim scarcely longer than head, sinuate laterally in the 

 middle, broadly and subquadranj,ularly dilated at apex ; 

 upper surface closely and finely punctured, almost plane 

 apicjilly ; antennse ferruginous, inserted quite close to apex. 

 Prothoiax broader than long, apex truncate, much narrower 

 than base, which is bisinuate ; sides subparallel to about 

 middle, then gradually narrowed to apex, where there is a 

 slight constriction ; upper surface almost plane, very finely 

 punctured on the disk, but coarsely so towards the sides, with 

 a shallow longitudinal impression close to apex containing an 

 ill-defined central carina, with a few large punctures on each 

 side of it, and a much deeper trapezoidal impression at base, 

 which is rugosely punctured and contains a distinct narrow 

 carina, the two impressions being separated by a narrow 

 smooth space ; colour uniform light testaceous brown. 

 Elytra separately rounded at base, broader than the pro- 

 thorax at shoulders, which are roundedly i)rominent, sides 

 subparallel to beyond middle ; upper surface plane, with ten 

 complete, deep, and strongly punctured strice, the intervals 

 being narrow, convex, and impunctate ; colour uniform 

 testaceous brown, a little darker than the prothorax. Legs 

 testaceous, bare, and finely punctured. 



S.E. Mashonaland : Chirinda Forest. 



Type in the British Museum. 



This species, as also C. lanzila, I captured flying in the 

 daytime along shady paths in the dense forest. 



10. Cossonus elongatulus, Fab. 



Curcidio elongatulus, Fab. Ent. Syst., Suppl. p. 168. 



Cossonus ehngatuluSf Boh. Schon. Gen. Cure. iv. p. 1022 (1837). 



Long. 3^-6 i, lat. 1-2 mm. 



iieac/ subconical, piceous, shining, impunctate on vertex; 

 forehead with fine scattered punctures ; eyes slightly promi- 

 nent. Rostrum stout, a little shorter than head, broad and 

 flattened ; sides parallel in the basal half and with a slight 

 quadrangular dilatation at apex, black or ferruginous, 

 shining, deeply punctured, and with a broad central furrow, 

 which ascends the forehead, but is abbreviated anteriorly ; 

 antennae stout, ferruginous. Prothorax longer than broad, 

 apex truncate, much narrower than base, which is subbisinuate, 



