AUSTRO-MALAYAN DIPTERA 423 



MID AID AE. 



There are no species of this group in the collection ; but I 

 will improve this opportunity in order to insert a notice on 

 Midas hif ascia Wk. J. Proc. Lin. Soc. IV, 104 (Celebes), which 

 may be useful. Walker says « hind femora and hind tibiae 

 reddish »; and this is really the case with the type (a single 

 specimen) in the British Museum. The museum in Leiden pos- 

 sesses two specimens from Sumatra (Muller) of apparently the 

 same species, but with the hind legs altogether black. I believe 

 therefore that the red hind legs of M. Walker's specimen either 

 represent a variety, or are due to immaturity. The wings may 

 be described as saturate brownish-fulvous (and not « cinereous » 

 as Walker has it), the veins more or less clouded with brown 

 near the apex ; that is, very distinctly in one of the specimensj 

 and very little in the other. 



ASILIDAE. 

 Section Asilina,. 



Synolcus xanthopus Wied. Auss. Zw. I, 456 (Asilus) ; compare 

 also V. d. Wulp, 1. c. Tab. XI, f. 19. 



Two d^, six 9. Kandari, Celebes, April 1874 (Beccavi). 



Mochtherus gnavus v. d. Wulp, Tijdschr. v. Ent. 1872, Tab. 

 XII, f. 3 female; ibid, 1876, 174, male. (Java, Gilolo etc.) 1 c/', 

 2 9- Kandari, Celebes, April 1874 (Beccavi). 



Itamus involulus Walk. J. Proc. Lin. Soc. Y, 281 ! (Batchian). 



One 9, Ternate, 1875 (Beccavi). 



ÌA.^ Walker describes the 9; I believe that /. dentipes v. d. 

 Wulp, of which I have also seen the type in Leiden, is the 

 male of the same species. 



