418 R. OSTEN SACKEN 



Two 9; D©rei Hum and Ramoi , N. Guinea, Febr. 1875 

 (Beccari). 



M. Walker describes a J', hence the identification is doubtful. 

 The type, which I saw, seems to be the same species as mine. 



Tabanus papuinus Wk. J. Pr. Lin. Soc. VIII, 108. (N. Gui- 

 nea Wk.). 



One 9, Sorong, N. Guinea, 1872 (L. M. B'Alhertis). 



M. Walker describes a male , nevertheless the description 

 agrees tolerably well. 



Tabanus. One 9, Rorido, N. Guinea, 1875 (Beccari). 



Tabanus. One9,Mt. Singalang, Sumatra, July \S1^ (Beccari). 



Tabanus. One 9, Kaju Tanam, Sumatra, Aug., Sept. 1878 

 (Beccari). 



Chrysops albicinctus v. d. Wulp. Tijdschr. v. Ent. XI, 1868, 

 p. 103, Tab. 3, f. 6. (Salwatti). 



Three 9, Hatam, N. Guinea, June 1875; Salwatti, N. Guin. 

 Decemb. 1875 (Beccari). 



Wiedemann's description of C. pellucidus Fab. (Tranquebar) , 

 short as it is , is quite well applicable to this species ; but I 

 adopt the other name, as more certain. 



Differs from the ordinary type of Chrysops in the broad, flat- 

 tened third antennal joint and stouter tibiae. 



Chrysops dispar (Fab.) Wied. Auss. Zw. I, 196 (East-Indies). 



Seven 9 from Buitenzorg, Java, 1875 (Ferrari). 



The identification is certain , altho' there are discrepancies , 

 especially in the description of the face ; — Macquart, D. E. I, 

 1, 159 notices the same differences. 



Silvius (?) dimidiatus v. d. Wulp, Tijdschr. v. Ent. XI, 1868, 

 102, Tab. 3, f. 3-5 (!). 



