136 DIPTERA OF AUSTRALIA, 



Head slate-grey or greyish-brown, with two very faint brownish 

 or yellowish-brown spots between the eyes ; frontal tubercle 

 tolerably distinct in the ^ ; rostrum the length of the head, deep 

 brown or black, more or less reddish or fulvous at the sides ; 

 suctorial labella and palpi black ; ^ antennae the length of head 

 and rostrum combined, shorter in the 9 ; joints of scapus fulvous 

 orange ; flagellar joints black, the first four subcylindrical, the 

 rest linear. Thorax cinereous, opaque, traversed by four equi- 

 distant pale brown stripes ; greyish-black behind the suture ; 

 pleurae hoary greyish-black ; scutellum and metathorax fulvous. 

 Halteres brown. Abdomen brown, more or less tinged with 

 fulvous or brownish-fulvous, somewhat shining (more so in ,^), 

 covered with a slight greyish-bloom, the last two or three segments 

 and genitalia greyish-black ; venter greyish-fulvous. Coxte hoary 

 greyish ; the trochanters fulvous. Femora fulvous or reddish- 

 fulvous, growing black on the apical half. Tibiae and tarsi black. 

 In the (J the intermediate and hind tarsi rather more than twice 

 the length of the tibise ; in 9 less than twice their length. Wings 

 with a pale brownish tint; anterior border brown, but rather paler 

 than the stigma; veins deep brown or black, the fifth longitudinal 

 indistinctly clouded ; seventh longitudinal vein running tolerably 

 distant from margin. 



Ilab.—^Ionnt Kosciusko, N.S.W., at 5,000 ft. (Helms). 

 March. Several specimens in Coll. Australian Museum. 



431. Macromastix humilis, sp.n. 



(J. — Length of antennse 0"060 inch ... 1 '54 millimetres. 



Expanse of wings 0-500 x O'llO ... 1270 x 279 



Size of body 0-380 x 0-060 ... 9-64x1-54 



9. — Length of antennsd 0-060 inch ... 1-54 millimetres. 



Expanse of wings 0-500x0-110... 12-70x2-79 



Size of body 0-380x0-060... 964x1.54 



Head greyish, or slate-brown ; front more gibbose anteriorly 

 in the ^ than in the ^ ; rostrum about the length of the head, 



