762 DIPTERA OF AUSTRALIA, 



Eah. — Sydney, Berowra, Knapsack Gully, Blue Mountains, and 

 Waterloo Swamps, near Sydney ; July to September (Masters 

 and Skuse). 



Ohs. 1. — I have before me only thirteen specimens of this rather 

 remarkable species. The alar-venation is quite unlike any other 

 species known to me, but somewhat resembles that of D. longi- 

 pennis, Schum (Dipt. N. Amer. IV. pi. 1, f. 1). The wings, how- 

 ever, are of the usual shape. 



Obs. 2. — In four specimens recently obtained at Woronora the 

 vein-cloudings are almost entirely absent. 



291. DlCRANOMYIA SAXATILIS, Sp.n. (PI. XXI., fig. 2). 



9. — Length of antennae 0-050 inch ... 1-27 millimetres. 



Expanse of wings 0-320 x 0-085 ... 8-12x2-14 



Size of body , 0-260x0-040 .. 6-62x1-01 



Head brown, sericeous with yellowish. Rostrum, palpi and 

 antennas deep brown ; the former shorter than head ; joints of 

 antennae globose, separated by very short pedicels ; terminal joint 

 ovate. Thorax brown, sericeous with yellowish, with two small 

 brown spots below the humeri, and two short parallel longitudinal 

 lines having their base on the transverse suture ; pleurae some- 

 what sericeous with yellowish ; scutellum and metathorax dark 

 brown. Halteres pale ochreous-yellow, slightly infuscated. 

 Abdomen dark brown, sparingly clothed with a light pubescence ; 

 ovipositor and anal segment ochraceous, the lower valve deep 

 brown at base. Legs ochraceous-brown, all the joints dark brown 

 at the tips ; tarsi infuscated. Wings with greyish or brownish 

 cloudings, particularly along the veins ; four sub-hyaline spots in 

 the first basal cell, the third extending to and filling the basal 

 half of inner marginal cell ; a more or less indistinct sub-hyaline 

 spot at the base of each cell ending at apex of wing ; one in discal 

 cell ; a small rounded one beyond tip of seventh longitudinal vein ; 

 and lastly another small rounded one at the anal angle ; stigma 

 scarcely darker than the pale cloudings ; veins yellowish-brown. 



