78 DIPTERA OF AUSTRALIA, 



somewhat exteriorly at the tip, reaching the margin of the 

 wing immediately before the apex ; cross- vein rather indistinct, 

 not very oblique ; third longitudinal vein running very near tlie 

 posterior margin, arcuated just before tip, indistinct ; anterior 

 branch absent. (Description drawn from dried specimen). 



Ilab. — Middle Harbour, near Sydney. (Masters and Skuse). 

 August. 



Ohs. — Closely allied to D. cwca. 



24. DiPLOsis VEGRANDis, sp.n. 



jj. — Length of antennae 00-40 inch ... 1-01 millimetres. 



Expanse of wings 0-035 x 0-017 ... 0-88x0-42 



Size of body 0-030x0008 ... 0-76x0-20 



9. — Length of antennse -01. 5 inch ... 0-38 millimetre. 



Expanse of wings 0-040x0-015 ... 1-01x0-38 



Size of body 0030x0-010 ... 0-76x0-25 



(J and 9. Antennse brown, with greyish verticils ; basal joints 

 yellowish brown ; ^ alternate joints twice the size of the inter- 

 mediate ones, the basal half of each joint pale like the pedicels ; 

 pedicels as long as the joints ; 9 cylindrical, sub-sessile. Front 

 and mouth yellowish-brown. Palpi yellowish, short and slender. 

 Thorax ochraceous-brown, nitidous, that of the 9 with a reddish 

 tinge ; pale pubescence ; humeri yellow ; pleurte somewhat reddish- 

 yellow. Halteres yellowish with a greyish pubescence, club large. 

 Abdomen reddish-yellow, with a conspicuous reddish-brown patch, 

 generally on the first three or four dorsal segments, but sometimes 

 extending further down the back, with a dense pale pubescence ; 

 ^ forceps large, pale reddish-brown ; 9 ovipositor short, pale 

 reddish-yellow. Legs moderately long, slender ; about the same 

 length in both sexes, if anything rather longer in ^ ; greyish- 

 yellow, with a cinereous pubescence, very dense on the tarsi 

 making them appear considerably darker than the tibiaj and 

 femora. "Wings hyaline, clothed with long hairs, deeply ciliated, 

 with a brassy reflection ; iu ^ somewhat rounder and shorter. 

 Veins pale yellowish. Two first longitudinal veins very distinct, 



