242 



Memoirs of the Indian Museum. 



[Vol.. Ill, 



pair of circular areas which are finely rugose or punctured. Metasternum with lateral 

 areas narrow, finely punctured and hairy throughout, not in contact with central area ; 

 anterior intermediate areas punctured and hairy; posterior intermediate areas smooth 

 and hairless. Posterior parts of hind coxae, and scars of abdominal sterna, finely 

 punctured, either sparsel}^ or closely. Elytra slightly hairy at the shoulders; very 

 strongly punctured in the lateral grooves, more weakly in the dorsal ones of which 

 the innermost are scarcely punctured at all. 



Macrolinus andamanensis (StoHczka). 

 PL xiii, figs. 41-41(7. 



'-^f^ (paratypes) 



Reg4. No. 



'^ {paratypes) 





'—'- (paratype) 

 '"^ (paratypes) 



> Andaman Islands 



4069-7« 4072-4 3713-20 

 5 5 10 





6602-8 6428-9 9860 



13 14 18 J 





6450 



Moulmein ' 



Stoliczka bequest, J. Wood- 

 Mason, etc. 



Museum Collector. 



^" ^°^- appear to be paratypes. Nos. ^^^^ and ^^^^-^ are from " Dr Stoliczka's 

 Type collection," and the rest were "named by Dr. Stoliczka and Mr. J. Wood- 

 Mason " ; several of the latter series, including some from Wood-Mason's collection, 

 bear labels written by Stoliczka. 



Description. — Length 31-38 mm. Differs from the preceding in the following 

 characters only; lamelliform processes of six distal antenna-joints somewhat longer 

 and slenderer; ridge joining inner tubercles of head^ straight or slightly raised in 

 middle fine; frontal area in consequence of this and of a difference, less constant in 

 both species, in the course of the frontalridges (which in this species are usually curved 

 so that they do -not enclose an acute angle in front of the central tubercle), longer in 

 proportion to its width, and semicircular rather than crescentic in form ; outer tubercles 

 bifid in profile, upper process longer (often much longer) than lower, and separated from 

 it by a distance nearly as great as that from inner tubercle ; anterior and posterior 

 portions of supra-orbital ridges meeting in an angle of not less than 120°; mesosternum 

 more extensively polished, circular punctured areas mostly represented by smooth 

 depressions or entirely absent. In the mesosternum of some specimens there is a 

 very strongly marked median groove whose surface is finely roughened, but more 

 usually this is obscure or absent; I have not seen it in B. nicoharicus, but it ma3^ 

 very likely be found occasionally in that species also. 



' I find by looking up the register that this record is of doubtful authenticity, so as it appears to 

 be the only record of the species outside the Andamans it is probably incorrect. 



■^ No mention is made here of the central tubercle, as this is so very variable in both species, both in 

 form and in the extent of its connection with the posterior ridges, that I can find no constant difference 

 between the two that is sufficiently definite to permit of description. No taxonomic importance is to be 

 attached to the differences that appear in the figures. 



