NIGIDIUS. 215 



coarsely punctured front margin, divided in the middle by 

 a sharp longitudinal ridge. The lateral margins are straight 

 and paralk'l to well beyond the middle, and then converge 

 almost rectilinearly to the hind angles, which are very blunt ; 

 the base is gently trisinuate ; the front angles are broadly 

 rounded. There is a strong longitudinal median groove 

 reaching tlie median carma in front and containing numerous 

 strong punctures. The sides are strongly, closely and very 

 bnmdly punctured, and the narrow space between the median 

 groove and the strongly punctured sides is finely but distinctly 

 punctured. The elytra bear strongly elevated narrow costae 

 and each interval contains a regular row of larg^' round shallow 

 pits and a series of fine and less regular punctures on each side. 

 The apices are densely and coarsely pitted and opaque. The 

 mentum is coarsely rugose and the submenium coarsely pitted. 

 The prosternum is closely rugose, the metasternum very coarsely 

 and closely pitted at the sides and spar.sely punctured in the 

 middle. The abdomen is rather strongly punctured, more 

 closely in the middle than at the sides. 



Length (with mandibles), 12-15 mm. ; breadth, 5-(> mm. 



Assam : Tura, Garo Hills, 1200-150(1 ft. {Dr. Stanley Kemp, 

 June, July) ; Duars {Dr. C. F. C. Beeson). Andaman Islands 

 {Roepstorff). Malay Peninsula. Tonkin. 



Tijpe in the British Museum. 



Dr. Beeson found this species in dead ]\Ialatta Wood {Maca- 

 ranga pustnlata). 



121, Nigidius birmanicus. (Plate XXII, fig. 10.) 



Nigidius bir)namcus Boil.,* Trans. Ent. Soc. Lond, 191 1 , p. 446. 



Black and shming, the body moderately elongate, convex 

 and clyindrical. The head is strongly, closely and unevenly 

 punctured in front, with a small, smooth depression on each 

 side, and has a finely and closely punctured band beliind the 

 eyes, with a broad, smooth area in the middle. The canthus 

 is broad and rectangular in front, with the lateral margins 

 nearly parallel, the front angle blunt, the hind angle stroi^gly 

 produced at a right angle with the head, the apex ratiicr blunt. 

 The mandible bears a simple strongly curved appendage above. 

 The pronotum has a rather broad, closely punctured anterior 

 marginal band, divided in the middle by a sharp longitudinal 

 ridge. There is a deep, irregularly punctured median groove, 

 extending froni the front marginal band almost to the base, and 

 the sides between the groove and the lateral margins are 

 punctured, strongl}^ and closely except near the groove, where 

 the punctures are very fine. The front angles are produced 

 and broadly rounded, the sides straight and parallel to beyond 



