692 DIPTERA OF AUSTRALIA, 



veins brown ; very distinct. Cross- vein thick. First longitudinal 

 vein reaching the costa some distance before the base of the fork ; 

 petiole somewhat paler than the fork and longer than the 

 anterior branch ; postei'ior branch shorter than the anterior and 

 very little arcuated at its base ; tips scarcely divergent, fg 

 three times the length of gh ; kl a little longer than Im. 



5. — Antennae rather slender, pitch-brown, with a moder- 

 ately long dense yellowish jjubescence ; basal joints pitch-brown, 

 somewhat paler than those of the flagellum, with a sparse pubes- 

 cence ; flagellar joints 2 to 4 times as long as broad, sub-sessile. 

 Halteres brown, with a few hairs, the stem brownish-yellow. 

 Abdomen deep brown or black ; lamellae of the ovipositor deep 

 brown or black, elliptical. First joint of the tarsi 3 times the 

 length of the second ; second joint about J longer than the third, 

 and not quite the length of the combined fourth and fifth joints ; 

 fifth joint about \ longer than the fourth. 



Hah. — Middle Harbour, near Sydney (Skuse); Berowra (Masters). 

 August. 



112. SCIARA AQUILA, Sp.n. 



9. — Length of antennae 0-040 inches ... 101 millimetres. 



Expanse of wings 0140x0-050 ... 3-55x1-27 



Size of body 0-120x0-020... 3-04x0-50 



Antennae black, with a short yellowish pubescence ; slender, as 

 long as the head and thorax combined ; joints of the scapus black, 

 sparsely pubescent ; flagellar joints sub-sessile, 2 to 1^ times as 

 long as broad. Head black. Eyes contiguous above. Palpi 

 deep brown. Thorax black, sub-nitidous, with three longi- 

 tudinal rows of golden-yellow pubescence, the lateral rows 

 starting fi'om the humeri, extending almost to the scu- 

 tellum and nearly meeting, the hairs becoming less dense 

 towards the scutellum ; tlie intermediate row very short 

 and indistinct, sparsely haired ; a few lateral hairs in front 

 of the origin of the wings, not extending to the humeri; 

 humeri very slightly tipped with reddish-brown ; scutellum with 



