HISTER RITSEMAE. 125 



NOTE IX. 



A NEW AFRICAN SPECIES OE THE COLEOPTEROUS 



GENUS HISTER. 



DESCRIBED BY ' 



S. DE MARSEUL. 



Hister Ritsemae^ sp. n. 



Length 6 mm. , breadth 5 mm. — Oval , but little con- 

 vex, broadly rounded at the sides; glossy black, legs fer- 

 rugineous brown. — Head broad , clypeus subdepressed , 

 separated from the front by a strong stria which is sub- 

 angularly curved ; mandibles concave. — Prothorax trans- 

 verse , broad and almost straight at the base , the sides 

 oblique , the front border notched , with produced obtuse 

 angles, the internal lateral stria strong, entire, slightly 

 arcuated towards the base , the external stria running from 

 the middle to the eyes. The scutellum narrow , triangular. — 

 Elytra rounded and dilated at the sides, truncated at the 

 end , having their greatest width at the shoulders ; their 

 striae strong , crenulated , the first , second and third dor- 

 sal ones entire, the fourth and the sutural one a little 

 shortened at the base which is also the case with the 

 internal subhumeral stria; the fifth much shorter; the 

 epipleura excavated, provided with two grooves of which 

 the internal one is interrupted. — Pygidium arc-shaped , 

 and densely and rugosely punctured as well as the pro- 

 pygidium. — Presternum narrow , blunt at the base , pro- 

 motes from the Leyden IVIuseutn, Vol. IV. 



