1738 
DIPTERA OF AUSTRALIA, 
white beneath (in the fore- and intermediate- pairs the brown pre- 
dominates), and just perceptibly white at the extreme apex ; tibiae 
and tarsi sordid brown, with a yellowish-grey reflection, all joints, 
except the last tarsal joint, with a small ring of white at the base. 
In the hind-legs the metatarsi equal in length to the tibiae. Wings 
longer than the abdomen, hyaline, the veins thickly covered with 
brown scales, chiefly long and very slender, cilia brownish-grey. 
Auxiliary vein reaching the costa about opposite the tip of the 
posterior branch of the fifth longitudinal vein; middle and posterior 
cross-veins very pale, the former a little shorter than the latter 
and situated in front of it a distance equal to twice its length ; 
first sub-marginal cell a little longer and distinctly narrower than 
the second posterior cell, its base situated almost opposite but 
slightly beyond the base of the latter ; anterior branch of the fifth 
longitudinal vein as in the last species. 
Hah . — Blue Mountains (Masters); Berowra, N.S.W. (Skuse). 
January. 
Ohs . — I have seen only two specimens of this well-marked 
species. 
201. CuLEX XOTOSCRIPTUS, sp.n. (W. Macleay, MSS.). 
(J. — Length of antennae O’OTO inch 
Expanse of wings.. 0'140 x 0'030 ... 
Size of body 0-160 x0'030 ... 
1-77 millimHres. 
3*55 X 0-76 
4-06 X 0-76 
— Length of antennae 0-085 inch 
Expanse of wings 0-160x0-040 ... 
Size of body 0-180 x 0-035 ... 
2-14 millimetres. 
4- 06 X 1-01 
5- 56x0-88 
— Antennae light brown, verticils greyish-sericeous, about 
the length of the palpi ; first joint of the scapus with a small 
patch of silvery-white scales on the inner side. Eyes olive-green, 
bordered behind with a fine line of silvery- white scales, followed 
by a broad band of black or very deep violet-black, behind which 
