392 DIPTERA OF AUSTRALIA, 



Q, — Length of antennae 0-085 inch ... 2-14 millimetres^ 



Expanse of wings 0-200 x 0-070 ... 508 x 1-77 



Size of body 0-210x0-035 ... 5-33x0-88 



^. — Antennae rather slender, neai-ly as long as entire body, 

 brown, with dense, pale yellow pubescence ; joints of scapus 

 fulvous or brownish-fulvous, with a few short brown hairs; flagellar 

 joints 3 to 5 or 6 times as long as broad, subsessile, progressively 

 diminishing in thickness. Head black. Eyes contiguous above. 

 Palpi brown. Thorax brownish-fulvous, sub-nitidous, with two 

 scarcely noticeable sparse rows of very short brown hairs ; scu- 

 tellum with some distinct brown haix's ; pectus rather paler fulvous 

 than the rest of the thorax. Halteres black, the base of stem 

 fulvous. Abdomen deep brown or black, somewhat shining, 

 densely clothed with moderately long black hairs ; terminal seg- 

 ment and forceps yellowish-brown, with black hairs. Coxae ful- 

 vous. Fore and intermediate femoi-a fulvous ; the hind pair 

 brown or black, usually somewhat paler at the base. Tibiae and 

 tarsi black. In the fore-legs the tarsi about | longer than the 

 tibiae ; in the intermediate-legs the tibiae and tarsi of about equal 

 length ; in the hind-legs the tibiae ^ longer than the tarsi. Spur-s 

 brown or yellowish-brown, about the length of last joint of tarsi. 

 First joint of tarsi 2| to 3 times the length of the second ; second 

 about f longer than third, and equal to fourth and fifth together. 

 Wings pellucid, with a pale greyish-brown tint, more brownish 

 between second longitudinal and costa ; veins dark brown ; opaline 

 reflections. First longitudinal vein reaching costa a little beyond 

 the base of the fork ; cross vein distinct, situated at the middle of 

 the first longitudinal vein ; petiole much paler than the fork, 

 somewhat longer than posterior branch ; posterior branch shorter 

 than the anterior, both slightly divergent at the tips, fg about 2^ 

 times the length of gh ; kl about f the length of Im. 



Q. — Antennae slender, a little longer than the head and thorax 

 taken together, the pubescence shorter than in the ^ ; flagellar 

 joints 2^ to 4 times as long as broad, the terminal joint longer. 

 Lamellse of the ovipositor ovate, black. Wings distinctly darker 



