l\h-. C. O. Waterhouse on new Coleoptera. 497 



XLVI. — Characters of rmdescrihed Coleoptera in the British 

 Museum. By Chaeles O. Waterhouse. 



LucanidsB. 



Sclerostomus BucMeyi^ ii. sp. 



c? . Niger ; capite opaco, pone ociilos tuberciilo armato ; thorace 



ajneo tincto, disco castaneo ; clytris olivaceis, nitidis, fortiter 



punctato-striatis. 

 Long. (mand. incl.) V2h millim. 

 5 . Niger, latior ; capite confertim piinctato ; thorace creberrime 



pimctato, disco plus minusve ferrngineo-rufo ; elytris ferrugineo- 



rufis, creberrime punctatis, sutura uigra. 

 Long. 10-11| millim. 



^. Elongate, parallel, convex. Mandibles as long as the 

 head, pitchy red in parts, thick, curved, concave on the inner 

 side ; the upper edge having (about the middle) an erect 

 lamelliform process, concave on the inner side, its two angles 

 prodviced and diverging. Head dull, gently concave, with a 

 few small punctures in front and at the sides ; between the 

 base of the mandible and the eye there is a slight shining 

 tuberosity with a deep impression behind it. The ocular 

 canthus is laterally prominent, like a small tubercle, and 

 behind the eye there is a dentiform tubercle, which projects 

 a little more than the ocular canthus. Thorax a little wider 

 than the head, nearly twice as broad as long, moderately 

 convex, slightly shining, sparingly and very delicately punc- 

 tured, a trifle narrower in front than behind, all the angles 

 obtusely rounded ; the lateral margins narrowly reflexed ; 

 disk with a shallow punctiform impression on each side ; the 

 front with a raised prominence, which is slightly divided at 

 its apex. Scutellum black, shining. Elytra dark olive- 

 green, shining, parallel, perpendicularly deflexed at the sides ; 

 the striaj deep and very strongly punctured ; interstices very 

 convex, with scarcely any trace of punctuation. Metaster- 

 num very sparingly punctured near the middle ; the punctures 

 are very delicate, more distinct at the sides. Middle and hind 

 femora slightly pitchy below. 



? . Oblong-ovate, gently and regularly convex. Head 

 densely and strongly punctured, not concave. Thorax very 

 broad, gently convex, with a shallow, median, impressed line 

 behind, closely and strongly punctured, gently arcuate at the 

 sides ; black, with the disk on each side dull rusty red ; the 

 anterior angles very slightly advanced, the posterior angles 



