628 DIPTERA OF AUSTRALIA, 



in not having spines on the anterior tibiae, and in the shortness of 

 the auxiliary and sixth longitudinal veins ; but these differences 

 are of minor importance. 



Genus Brachydicrania, Sk. 

 Brachydicrania, Sk., I.e., p. 1215, pi. xxxi., figs. 16- 16a. 



483. Brachydicrania fascipennis, sp.n. (Pi. xix., fig. 9). 



^. — Length of antennae.... . 0'045 inch ... 1"1 3 millimetres. 



Expanse of wings 0-110 x 0040 .. 2-79 x 1-01 



Size of body 0130x0-025 ... 3-30x0-62 



5. — Length of antennse 0-045 inch ... 1-13 millimetres. 



Expanse of wings 0-130x0-045 ... 3-30xM3 



Size of body 0-150x0-027 ... 3-81x0-68 



(J and J. — Antennae slender, as long as the head and thorax 

 combined ; joints of the scapus and base of first flagellar joint 

 yellow, with short brown hairs ; flagellar joints dusky brown, 

 with a minute hoary pubescence. Front and hypostoma dusky 

 brown, the former with a minute yellowish pubescence. Palpi 

 yellow. Thorax brown, almost opaque, more or less distinctly 

 tinged with ochreous on the margins ; densely covered with 

 minute brown or blackish hairs ; indistinctly traversed by two 

 convergent, single, sparse rows of black hairs ; borders setiferous ; 

 pleurae ochreous, with brown callosities ; scutellum and meta- 

 notum brown. Halteres pale ochreous or whitish, the club brown 

 (except at the tip). Abdomen deep brown or black, covered with 

 brown hairs ; the first segment usually narrowly bordered pos- 

 teriorly with pale yellowish or whitish ; the first and second 

 bordered laterally beneath with yellow ; and the third to last 

 usually marked with a more or less distinct triangular yellow spot 

 laterally, more distinctly in the 5 than in the ^ ; genitalia 

 yellowish-brown. Coxae and femora pale ochreous or whitish ; 

 the hind coxse with a small, more or less distinct, brownish streak 



