I0I4.] F. H. Gravely : An Account of the Oriental Passalidae. 307 



[* Leptaulax obtusidens, Kuwert.] 



Leptaulax obtusidens, Kuwert, 1891, p. 188, 

 Leptaulax obtusidens, Kuwert, 1898, p. 292. 

 This species is perhaps only a variety of the last. 



Locality: — 

 New Guinea. 



[Leptaulax glaber (Kirsch).] 



Trichostigmits glaber,K\rsch, 1877&, pp. 139-140. 

 [Trichostigmus glaber, Wytsman, 1884, p. 331.) 

 Leptaulax glaber, Kuwert, 1891, p. 188. 

 Leptaulax glaber, Kuwert, 1898, p. 292. 

 Leptaulacides 1; glaber, Zang, 1905^, pp. 227-8. 

 Leptaulacides ^ glaber ^^ piikltelhis, Arrow, 1907, pp. 466-7. 



L. piilchellits from New Guinea is apparently a distinct variety, for Arrow was 

 able to compare his type with several specimens of the typical glaher. As all he actu- 

 ally saw of the latter were collected by Wallace in Batchian, however, their unifor- 

 mity may have been due to their being all from a single colony, and a direct com- 

 parison of these and of the type of L. pulchellus with the type of L. glaber from Jobi 

 is much to be desired. 

 Localities: — 



MoUuccas: Batchian. 



Papuan Islands : New Guinea ; Jobi. 



Leptaulax bicolor (Fabricius). 



Passalus bicolor, Fabricius, iSoi, p. 256. 



* Passalus bicolor, Schonherr, 1806-17. 



Passalus bicolor, Percheron, 1835 pp. 69-70 ; p). v, fig. 3. 



* Passalus bicolor + innocuus, Dejean, 1837, P- I95- 

 Passahis bicolor, Percheron, 1841, p. 21. 

 Passalus vicinus, Hope in Percheron, 1844, p. 11. 

 Passalus bicolor + vicinus, Burmeister, 1847, pp. 478-9. 



(Passalus bicolor + vicinus , Smith, 1852, pp. 17 and 20.) 

 Leptaulax EschschoUzi + bicolor, Kaup, i868«, pp. 14 and 16. 

 Leptaulax bicolor [part] + EschschoUzi, Gemminger and Harold, 1868, p. 969. 

 Leptaulax EschschoUzi + bicolor, Kaup, 1871, pp. 323. 

 Leptaulax ^bicolor [part], Stoliczka, 1873, p. 155. 

 Leptaulax bicolor, Kirsch, 18776, p. 140. 



(Leptaulax EschschoUzi + bicolor [part], Wystmau, 1884, p. 332.) 

 Leptaulax bicolor, Schaufuss, 1885, p. 186. 

 ■ Leptaulax Manillae + Malaccae+?Consequens + tBatchianae + Bicolor + ^Cicalrosus + Abdoinim- 

 sculptus + Differ entispina + Incipiens + Eschscholtzii + Aurivillii -(- Separandus,' + vars. 

 Medius and Maxillonotus, Kuwert, 1891, pp. 188-190. 



' Since drawing up this synonymy I have seen a specimen determined by Kuwert as I. separandus 

 and found it to be I. dentatus, not L. bicolor. As this is the only instance in which I have not found 



