a52 DIPTERA OF AUSTRALIA, 



covered with a yellowish-grey bloom, with three brown stripes ; 

 intermediate stripe broad, terminating at suture ; lateral ones 

 narrow, stopping at a brown spot opposite origin of wings ; 

 pleurae brown. Halteres pale. Abdomen blackish-brown; 

 forceps (apparently) of ordinary type, concolorous with rest of 

 body. Legs brown, the tips of femora and tibiae infuscated. 

 Wings with a somewhat greyish tint ; veins brownish, the bases 

 and tips of veins, the cross-veins, and inner ends of cells very indis- 

 tinctly infuscated; stigma very faintly infuscated. Auxiliary 

 vein joining first longitudinal vein a little beyond inner end of 

 second sub-marginal cell, joined to costa by a cross- vein exactly 

 opposite the inner of that cell ; prEef urea moderately long, angu- 

 lated near its origin, with a short stump of a vein ; petiole of first 

 sub-marginal cell less than one-fourth the length of praefurca ; 

 inner end of first sub-marginal cell rather acute, somewhat 

 obliterate ; marginal cross-vein very indistinct, cutting middle of 

 stigma, and situated midway between inner end of first sub- 

 marginal cell and tip of first longitudinal vein; second sub-marginal 

 and first posterior cells of about equal length ; small cross-vein 

 curved ; second posterior cell half the length of third ; the latter 

 shorter than fourth posterior cell ;* discal cell elongate, the 

 great cross-vein opposite the middle of its length ; fifth and 

 seventh longitudinal veins a little arcuated at the tip. 



Skh. — Waterloo Swamps, near Sydney (Skuse). One specimen 

 in June. 



Obs. — There are some rather weak pieces of adventitious vein 

 in the wings ; in one wing a long curved piece originates from the 

 fourth longitudinal vein opposite middle of praefurca ; in both, an 

 irregular very oblique piece forms a cross-vein across the middle 

 of second basal cell ; also in one wing there is a small stump of a 

 vein near the tip of the seventh longitudinal vein. 



The posterior branch of fourth loDgitudinal vein being forked. 



