new Species q/ Histericlas. 107 



humeral carlnate and extends beyond the middle, inner com- 

 plete but only carinate at the base ; the pygidia are evenly 

 and not densely punctured ; the prosternum, striae sinuous 

 and well-marked, but abbreviated anteriorly before the suture, 

 keel distinctly punctured and obsoletely rugose ; the meso- 

 sternum, lateral fovese are deep and circular and the margin 

 is wider than that of E. Lepri'euri, Mars. 



The species of Eretmotus are difficult to differentiate, but 

 the punctuation of the keel, the deep circular fovece in the 

 mesosternum, and the colour of the legs will distinguish the 

 above from the other two small Algerian species known, viz. 

 carinatus, Lew., and Leprieuri^ Mars. 



Hah. Yakouren, Algeria. 



There are sixteen species of Eretmotus now known. 



Ontlwphilus niponensis^ sp. n. 



Ovatiis, niger, subnitidus ; froute leviter concava, clypeo quadrate ; 

 pronoto 6-costato vix dense punctato ; elytris S-costatis, basi in 

 medio foveolatis ; pygidio in medio longitudinaliter costato, dense 

 punctato. 



L. 2| mill. 



Oval, black, somewhat shining ; the head slightly concave 

 between the eyes, the clypeus is nearly quadrate, being less 

 widened posteriorly than that of 0. glohulosus, 01. ; the 

 thorax is rather densely punctured, lateral margins narrowly 

 and slightly raised, surface 6-costate, outer costa short and 

 near the base, intermediate one third longer and feebly oblique, 

 the two before the scutellum are short, parallel to each other, 

 and clearly separate ; the elytra are 3-costate, the interstices 

 with five fine carinules, and between the third costa and the 

 suture the outer carinules are crenate, at the base of the 

 elytra is a deep fovea between the second and third costa3 ; 

 the propygidium is densely punctured, with a median lonoi- 

 tudinal carina. 



This species closely resembles 0. globulosus, F., but it 

 differs by the clypeus being less wide at the base, by the 

 thoracic punctures being closer, smaller, and less deep, and 

 the elytral fovea is conspicuous and occupies the whole 

 breadth of the interstice. As regards the Japanese species, 

 it is most similar to ostreatus, Lew., which is, however, much 

 larger, and the median thoracic costce have appendages 

 behind the neck. 



Hub. Tokio, Japan. Many specimens in the Museum of 

 Paris and in my own collection. 



