196 On new Species o/' Histeridse. 



Elongate, cylindrical, black, shining ; the head, face con- 

 vex, sparingly punctured, with a strigose sculpture at the 

 anterior edge of the eye, the vertical puncture is small; the 

 thorax, lateral stria is wide, deep, and more deeply sinuous 

 than that of T. pinguis, and the edge of the thorax is also 

 deeply sinuous, the sinuosity ending abruptly behind the 

 middle forms an obtusely dentate projection behind it ; 

 before the scutellum the punctures leave a narrow irregular 

 smooth space not well defined, behind the eye is a distinct 

 impression ; the elytra very narrowly smooth at the base, 

 and the pygidia are more clearly punctured than those of the 

 last species, especially the pygidium ; the prosternum is not 

 straight in front, but feebly cut out in a bow-shaped outline 

 from angle to angle, feebly incised at the base, stria complete 

 at the sides and front, margin slightly raised ; the meso- 

 sternum is sulcate at the sides, obtusely pointed anteriorly ; 

 all the sternal plates are evenly punctured, the punctures 

 well separated from each other ; the anterior tibise 5-dentate, 

 teeth not prominent. 



Hab. Cameroon. 



TrypoMus cylindraceus^ sp. n. 



Elongatus, cylindricus, uiger, nitidus : capita convexo ; thorace 

 autice baud foveolato ; prosteruo antics late emarginato ; meso- 

 sterno utrinque sulcato ; tibiis anticis 5-dentatis. 



L. 3 mill. 



Elongate, cylindrical, black, shining; the head, face convex, 

 very polished, minutely strigose at the eyes, rather sparsely 

 punctured, vertical puncture very small ; clypeus bisinuous ; 

 the thorax much more densely punctured than the last species, 

 with a narrow sinuous impression behind the eye, lateral stria 

 deep, sinuous, but the prominent angle is not conspicuous like 

 that of T. (xthiojis ; the elytra not quite so densely punctured 

 as the thorax ; the propygidium and pygidium are densely 

 punctured ; the prosternum is entirely eraarginate in front, 

 feebly incised at the base, widest in front, narrowed behind, 

 lateral stria straight and transversely joining in front; the 

 mesosternum is obtuse anteriorly, the metasternum canalicu- 

 late in the middle, all the sternal plates similarly punctured ; 

 the anterior tibise 5-dentate. 



This is the smallest and narrowest species of this series. 



Hah. Cameroon. 



