CYCLOMMATUS. 63 



between the females of the two species are very great. The 

 prmcipal difTereiice is in the form oi tiie thorax, which, in 

 L. simjidaris is niucli less convex, more angular at the median 

 angles and much more contracted in front. It is also more 

 finely bordered. It may be added that the mandibles are 

 proportionally longer and that their inner edge, instead of being 

 securiform, presents two distinct and separate teeth, that the 

 epistome is longer and more slender, the grainilation of th(> 

 head less deep and the elytra more regularly ])arallel. Tiie 

 lamella? of the antenna are shortei'. The legs have the same 

 structure l)ut their granulation and jnmcturation are much 

 feebler. The only examjjle L know of tliis interesting species 

 has been lent to me by M. H. Boileau and bears as sole indica- 

 tion of its origin : Incles orientales. The colour of this female 

 is entirely black, the thorax and elytra are smooth and shining ; 

 it is probable that they are covered with villosity in the 

 natural state." 



A single female specimen in the British Museum fiom S.E. 

 Til)et (Zayid, 8000 ft) taken by Messrs. F. Kingdon Ward and 

 R. J. H. Kaulback, probably belongs to this sjjecies. 



Genus CYCLOMMATUS. 



Cijclommatus Parry, Trails. Ent. Soc. Lond. 186.3, p. 449. 

 Liicanus subg. C yclophthorus Hope & Westw. (part). Cat. Lur. Col. 



184.'5, p. 5 (preoccupied name). 

 Meyaloprepes Thorns., Ann. Soc. Ent. France (4), ii, 18(52, p. 420 



(preocc). 

 C'ljcloininalinus Did., Bull. Soc. Ent. France, 1927, p. 10,3 ; Arrow, 



Aim. Mag. Nat. Hist. (11) ii, 1938, p. 50. 

 Ci/doininiielliis Nagel, Stett. Ent. Zeit., xcvii. l!).3(i. p. 293; 



Arrow, loc. n't. 



Type, Lucanus tarandus Thunb. (Borneo.) 



Range. The Indo-Malayan and Papuan regions. 



The two sexes very dissimilar. 



Eyes prominent and entire. Antennae with a three- jointed 

 club, the seventh joint sometimes strongly produced. Pro- 

 thorax strongly contracted at the base, where it is much 

 narrower than the el3^ra at the shoulders. Shoulders not 

 sharpl}^ angular. Prosternum elevated between the front 

 coxaj and sometimes a little produced. Legs slender, the 

 front tibia acuminate, not forked at the end ; middle and 

 hind tibiae with a single lateral spine in the female, without 

 spine in the male. Claws and jnilvillus long. Maxilla long 

 and narrow, with a chitinous hook at the inner edge in the 

 female. Ligula slender, bilobed, the lobes narrow and 

 diverging ; labial })al[)i with the first joint long, second short 

 and third oval. 



