310 Memoirs of the Indian Museum. [Vol. Ill, 



Leptaulax planus (lUiger). 



Passalus planus, Illiger, 1800, p. 104. 

 {Leptaulax bicolor [part], Gemminger and Harold, 1868. p. 969.) 



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

 (Leptaulax bicolor [part], Wytsman, 1884, p. 332.) 

 (Leptaulax planus [part], Kuwert, 1891, p. 188.) 



Leptaulax f planus, Kuwert, 1898, p. 285. 



Leptaulacides -f planus, Zang, 1904&, p. 185. 



Leptaulax '\ planus, Gravely, above, pp. 260-261, pi. xiii, fig. 58. 



lyocalities : — 



Lower Burma : Tenasserim — Tavoy. 



Malay Peninsula ; Johore. 



Sumatran Islands : N. E. Sumatra — Serdang. 



T Sinken Island. 



Java. ^ 



Borneo : Sarawak — Kuching ; Mujang ; Sadong ; Matang Road; Paku. 



Genus TRICHOSTIGMUS, Kaup. 

 This genus appears to be restricted to Celebes and the Philippines. 

 Trichostigmus thoreyi, Kaup. 



Leptaulax Thoreyi, Kaup, 1868a, pp. 13-14. 

 (Leptaulax Thoreyi, Gemminger and Harold, 1868, p. 970.) 



Trichostigmus Thoreyi, Kaup, 1871, p. 31. 

 (Trichostigmus Thoreyi, Wystman, 1884, p. 33 1-) 

 (Trichostigmus Thoreyi, Kuwert, 1891, p. 187.)' 



Trichostigmus Thoreyi, Kuwert, 1898, p. 283. 



Trichostigmus ^thoreyi. Gravely, above, p. 261. 

 Locality : — 



Philippine Islands: Middle Luzon. ^ 



[Trichostigmus ursulus (Schaufuss).] 



Leptaulax \ ursulus, Schaufuss, 1885, p. 187. 

 Trichostigmus Ursulus, Kuwert, 1891, p. 187. 

 Trichostigmus ursulus, Kuwert, 1898, p. 283. 

 Locality : — 



South Celebes (according to the labels on the type specimens ; Schaufuss gives 

 no definite record) . • 



ZOOGEOGRAPHICAL RESULTS. 

 The above summary of our present knowledge of the geographical distribution 

 of the Oriental genera of Passalidae, shows that the family occurs in the Oriental 

 region chiefly in the neighbourhood of hills. There are one or two records of speci- 

 mens coming from Calcutta, but as these are the only records from any part of the 

 Gangetic Plain, they may safely be regarded as records of the place from which speci- 

 mens were dispatched after having been caught elsewhere. Geographically, there- 

 fore, the species found in the Indian Peninsula are at least as widely separated from 

 1 There is a specimen from this locality in the Hamburg Museum collection. 



