1914-] ^- H. GravEIvY : An Account of the Oriental Passalidae. 271 



is the mesosternum hairy ; whereas this is the case in every species of Comacupes 

 known to me. Consequently, I should have had no hesitation in regarding the speci- 

 men described by Burmeister from Germar's collection, as a member of the latter 

 genus, had not his description of the head appeared to me to be rather that of the 

 head of the former genus. Until the specimen is re-examined its identity must remain 

 uncertain. Passalids often break in two between the pro- and mesothorax, and it 

 is quite possible that the specimen is really a composite one, the anterior part of a 

 Taeniocerus having been gummed on to the posterior part of a Comacupes. Concern- 

 ing Zang's suggestion that variations in the form of the central tubercle indicate a 

 splitting into local races, see above, p. 208 footnote. 



Localities : — 



Malay Peninsula : Johore. 

 Sumatra: N. E. Sumatra. 



E. Sumatra — I^angkat. 

 Bornean Islands : Borneo. 

 Labuan. 



Smith's record of this species from India is too vague to be of any value, since 

 the term may easily have been used to include the whole of " Farther India ' ' as well 

 as the Indian Peninsula. 



Taeniocerus pygmaeus, Kaup. 



Aulacocydus pygmaeus, Kaup, 1868a, p. 5. 

 {Aulacocydus pygmaeus, Gemminger and Harold, 1868, p. 969.) 



Taeniocerus pygmaeAis, Kaup, 1871, pp. 20-21. 

 {Taeniocerus ^pygmaeus, Stoliczka, 1873, p. 152.) 

 (Taeniocerus pygmaetis, Wytsmau, 1884, p. 329.) 

 {Taeniocerus Pygmaeus, Kuwert, 1891, p. 170.) 



Taeniocerus "f parvus -i- pygmaeus, Kuwert, 1897, p 276. 

 {Taeniocerus pygmaeus, Zang, 19036, p. 419.) 



Taeniocerus "[pygmaeus, Gravely, above, pp. 209-210, pi. xi, figs. 8-8«. 



The specimens of this species that I have seen show quite clearly that the three 

 characters by which Kuwert separates his T. parvus from Kaup's T. pygmaeus are 

 all of them variable. Indeed, the hook-shaped and antler-shaped pronotal scars, by 

 which they are primarily distinguished in his table, may occur on opposite sides of 

 the same individual. 



lyocalities : — 



Malay Peninsula. 



Sumatra.' 



Borneo : Sarawak — Kuching. 



' This record is based oa specimens in Berlin, not seen in time for description in part 4 of this 

 paper. 



