AUSTRO-MALAYAN DIPTERA 425 



Fifteen d^^', Amboina, Dec. 1874; Kandari, Celebes, April 

 1874; Padan Panjan , Sumatra , Aug. 1875 (Beccari). M/ V. 

 d. Wulp (Tijdschr. etc. 1872) give?? a full description of this 

 species. 



Ommatius inflrmus v. d. Wulp , Tijdschr. v. Ent. 1872 ! (Gi- 

 lolo, Ternate, Morotai). 



Six 0^9; Ternate 1875 (Beccari). 



Ommatius spinibarbis V. d. Wulp, Tijdschr. v. Ent. 1872! 

 Gilolo, Borneo, Ternate). 



Four 0^9; Isld. Aru, Wokan, 1873; Ternate (Beccari). 



Syn. Ominatiu.s noctifer Walk. J. Pr. Lin. Soc HI, 88 ! (Aru Isld.s). 



Ommatius despectus v. d. Wulp, Tijdschr. etc. 1872! (Java). 

 Two specim. ; Mt. Singalang, Sumatra, July \d>l^ (Beccari). 



Ommatius sp. Two specim. ; Dorei Hum^ N. Guinea, Febr. 1875 

 (Beccari). 



Ommatius sp. Six c/^ 9 ; Kandari, Celebes, Apr. 1874 (Beccari). 



Ommatius sp. Two 9; Islds. Aru, Wokan; 1873 (Beccari). 



Ommatius sp. One 9; Dorei, N. Guinea, Decemb. 1875 (Bec- 

 cari). 



The first three species are closely allied ; the third resembles 

 0. infirmus, except that the tvsro first joints of the antennae are 

 black, instead of yellowish. Although more than 40 species of 

 Ommatius from the Malay Archipelago, have already been des- 

 cribed (sixteen by Walker from M."^ Wallace's collectipn alone, 

 fifteen new species by M.^^ v. d. Wulp, besides those, published 

 by Doleschall, Rondani and Schiner) this does not seem to have 

 exhausted the fauna. Still, the further study of this group can- 

 not be pursued now without a very considerable collection. 



