6'JO DIPTERA of AUSTRALIA, 



tip about one-half longer than broad, the terminal joint more 

 slender, about 3| times as long as broad. Head black, levigate. 

 Eyes contiguous above. Palpi light brown. Thorax black, levigate, 

 with two indistinct longitudinal double rows of very short hairs 

 reaching nearly to the scutellum ; scutellum deep reddish-brown, 

 with a short stiff pubescence. Halteres brown, the stalk brownish- 

 yellow, club with a few scattered very short hairs. AVjdomen 

 broader than the thorax, black, rather densely clothed with a 

 moderately long pubescence ; forceps Ijlack, densely pubescent, a 

 little wider than the abdomen. Legs ochraceous-brown, the tibite 

 and tarsi darker than the rest. In the fore-legs the tarsi a very 

 little longer than the tibiae ; in the intermediate legs the tibite 

 almost imperceptibly longer than the tarsi; and in the hind-legs 

 the tibiae nearly J longei- than the tarsi. Spurs about as long as 

 the fourth tarsal joint. First joint of the tarsi in the first and 

 second pairs of legs about 2h times the length of the second, in 

 the hind-legs 3 times the length ; second joint somewhat longer 

 than the third ; third joint somewhat longer than the fifth. 

 Wings pellucid, with a very pale yellowish-brown tint ; brilliant 

 blue and purpureous reflections. First longitudinal vein reacliing 

 the costa a short distance before the root of the fork ; cross- vein 

 very indistinct; third longitudinal vein almost uniformly indistinct, 

 the petiole shorter than the lower branch of the fork : branches 

 running almost parallel for the quarter part of their length, 

 scarcely divergent at the tips ; the posterior branch very little 

 arcuated at the base ; fork of the fourth longitudinal vein more 

 distinct than the last, fy almost 3| times the length of gh ; kl 

 about equal to Im. 



9- — Antennai slender, as long as the head and thorax together, 

 the pubescence short, not quite so dense as in the (J ; flagellar 

 joints very little longer than broad, the terminal joint about 3 

 times as long as wide. Lamellae of the ovipositor small, black, 

 densely pubescent, ovate. 



Hab. — Elizabeth Bay (Skuse). May. 



If. Thorax vnth three lonyittulinal rovjs oj hairs. 



