618 DIPTERA OF AUSTRALIA, 



flattened, narrowed at the base and towards the extremity ; 

 ovipositor short, thick, inconspicuous ; legs long and slender ; 

 intermediate and hind femora moderately broad ; tibiae spurred, 

 and with lateral spines ; fore pair with some minute spines along 

 the outer side, intermediate pair with two sparse rows of long 

 spines on the outer and some very small spines on the inner side, 

 hind pair with two sparse rows of long spines and a row of very 

 short spines on the outer side ; in the hind-legs the tibipe and tarsi 

 of about equal length. Wings a little longer than the entire body, 

 moderately broad, with rounded off base ; microscopically 

 pubescent. Auxiliary vein moderately long, the apical two-thirds 

 of its length very pale and indistinct, directed towards, but not 

 reaching the costa ; sub-costal cross-vein invisible ; costal vein not 

 extending beyond the tip of the third longitudinal vein, terminating 

 considerably before the apex of the wing ; inner end of first 

 posterior cell situated opposite the middle of the first longitudinal 

 vein ; the distance from the inner end of the first posterior cell 

 to the distal end of the anterior basal cell about J longer than the 

 distance from the latter to the tip of the first longitudinal vein ; 

 inner end of the second posterior cell situated a little befoi'e the 

 distal end of anterior basal cell ; the fork of fourth longitudinal vein 

 with a tolerably long petiole, the branches somewhat convergent 

 towards the tips, the anterior one reaching the margin much below 

 the apex of the wing ; anterior branch of the fifth longitudinal 

 vein detached at its base, the base situated considerably before the 

 inner end of the first posterior cell and opposite the tip of the 

 auxiliary vein ; sixth longitudinal vein long, incomplete ; seventh 

 longitudinal vein a mere stump. 



Obs. — Allied to Acrodicrania, 8k.,Leia, Meig., and Ateleia, Sk., 

 but at once distinguished from each by the incomplete auxiliary 

 vein, the length and shape of the second posterior cell, and by the 

 costal vein not extending beyond the tip of the third longitudinal 

 vein. The following described is remarkable for its party-coloured 

 antennal joints. 



