COLLECTED IX DUTCH NEW GUINEA. 405 



area of front and middle tibiae clothed with longer buff-yellow hair, a few similarly 

 coloured hairs on proximal portion of dorsal surface of hind tibiae, where (at least in 

 the type) ground-colour shows an indistinct raw-umber-coloured streak, and a few 

 scattered buff-yellow hairs on outer margin of upper surface of first joints of front and 

 middle tarsi ; trochanters thinly clothed with ochre-yellow hairs ; claws, all bristles on 

 legs, and hair on legs, except as already stated, black ; upper surface of first joint of 

 front tarsi, and upper surface of first joint of middle tarsi except at distal extremity 

 mummy-brown. 



1 c? . Wataikwa River, Sept, 1910. {Type of the sijecies.) 



Genus Neoitamus. 

 Neoitamus Osten-Sacken, Cat. Dipt. North America, 2ud ed. pp. 8,2 & 235 (1878). 



26. Neoitamus longistylus. 



Asilus hngistylus Wiedemann, Aussereurop. zweifl. Ins. i. p. 433 (1828). 



2 d' , 1 ? . Wataikwa River, Aug. 1910. 



1 6 . Utakwa River, 2500-3000 ft., Feb. 1913. 



The British Museum already possessed two females of this species from Salawatti 1., 

 near New Guinea (A. E. Wallace), and according to the late F. M. van der Wulp 

 (Tijdschr. voor Ent, Jaarg. 15, p. 248, 1872) the Leiden Museum contains examples 

 from Morotai, Waigiu, Batchian, Ternate, and Halmaheira. The type of the species, 

 which is also in the Leiden Museum, is stated by Wiedemann to have been obtained 

 in Java. 



[Additional specimen: 1 d. Base Camp, sea-level, Setakwa River, Nov.-Dec. 

 1912.— i^. W. E.] 



Genus Ommatius. 

 Ommaiius Wiedemann, Diptera Exotica, p. 213 (1821J. 



27. Ommatius excukrens. 



Ommatius excurrens van der Wulp, Tijdschr. voor Ent., Jaarg. 15, p. 263, pi. 12. fig. 15 

 (1872). 



1 6 . Mimika River, July 1910. 



The type of this species, which is from Morotai, Moluccas Is., is in the Leiden 

 Museum. 



28-30. Ommatius, 3 spp. inc. 



1 <s . Wataikwa River, Aug. 1910. 



1 (S without data. 



1 ? . Mimika River, Aug. 1910. 



