DORCUS. 121 



A large dark brown male ,s{)etiiuen from Laos, Tonkin, in 

 Mr. Bernard Benesh's collection, resemhlinii ratlier closely the 

 large ^ IJ. buddka Hope (PI. 15, tig. 8) but with dull", not 

 glossy, elytra, very likely belongs to this species. 



53. Dorcus polymorphus, nom. u. (Plate 11, tigs. 5rt, b, c; 

 PhitelX, tigs. 1, 2.) 



Prosopoca'lus parryi Boil., Trans. Eat. Soc. Loud. l'J13, p. 233 



(pre-ofcupied name). 

 Lucanus bulbosu.s Hope & \Ve.st\v.,* Cat. Luc. Col. 1845, p. 20 (not 



Lucanus bnlbosus Hope, 1841). 

 Dorcus jmrryi Arrow, Trans. R. Ent. Soe. Loud. Ixxxvi, 1937, 



p. 242, pl. 2, fig. 3. 

 Prosopocalus parryi vars. latus, angimtus Did., Col. Lue. du Globe, 



1929, pp. 98-101, fig.s. 50-53. 



The female is black or almost black, the male deep red or 

 reddish- black, Avith the mandibles and sides of the head black, 

 the femora and tibite sometimes bright red and the tarsi 

 bearing conspicuous ])ads of bright yellow hairs beneath. The 

 sha})e rather narrow and the lateral margins of the pronotum 

 are hnely serrate. The prostcrnum bluntly produced behind. 

 The eyes small and the canthus extending past the middle. 



9- The upper surface is strongly punctured, rugosely at 

 the sides, but very shining in the median part of the pronotum 

 and close to the elytral suture. The head is coarsely rugose 

 and sometimes shows an ill-defined shining elevation on 

 each side of the middle. The pronotum is finely punctured, 

 sometimes with a narrow smooth median line, the sides 

 very strongly and rugosely i)unctured. The elytra are very 

 closely pun(!tured except near the suture, where they are 

 very shining, and the j)uncturcs are very strong and dense 

 at the sides. The front tibia is broadl}^ forked at the end. 



(^. The pronotum and elytra are feebly shining along the 

 middle line. The head is densely granular and opaque, short 

 and broad, with the front angles rounded and the cheeks 

 very slightly swollen behind the eyes. The front margin is 

 curvilinearly excised and the clypeal process is small and 

 bilobed. The pronotum is very finely coriaceous, densely at 

 the sides, less so and feebly sliining in the middle. The front 

 angles are very bluntly rounded, the lateral margins evenly 

 rounded to beyond the middle, where there is an acute s})ine, 

 and concave to the broadly rounded hind angles. The elytra 

 are closely and very minutely punctured and feebly shining 

 dorsall}^ densely' coriaceous and opaque at the sides. The 

 mentum is hollowed and the front edge of the submentum is 

 sharply carinate and more or less trilobed. The front tibia 

 is strongly forked at the end, the middle tibia has a strtjng 

 lateral spine and the hind tibia a feeble one. The extremities 



