BY FREDERICK A. A. SKUSE. 715 



longitudinal vein ; petiole paler than the fork, and longer than 

 the anterior branch ; posterior branch very little arcuated at the 

 base ; anterior branch more divergent at the tip than the pos- 

 terior branch, /^f about 2^ times the length of gh ; kl shorter 

 than Im. 



Hah. — Elizabeth Bay (Skuse). April. 



c. Tip of tlie posterior branch of the fork nearer the apex of the 

 loinc) than the tip of the second longitiddinal vein. 



131. SCIARA NUBICULA, Sp.n. 



^. — Length of antennae 0-060 inch ... 1-54 millimHres. 



Expanse of wings 0-095 x 0-035 .. 2 39x0-88 



Size of body 0-090x0-015 ... 2-27x0-38 



Antennae very slender, two-thirds the length of the body, deep 

 brown, densely pubescent ; joints of the scapus pitch-brown, 

 sparingly haired ; flagellar joints sub-sessile, 3 to 3-i times as long 

 as bi-oad. Head black. Eyes contiguous above. Palpi yellow. 

 Thorax deep brown, sub-nitidous, with three longitudinal single 

 rows of brown hairs, double just before the collare, also a few 

 very long setse just before the origin of the wings and on 

 the scutellum. Halteres dusky brown, with a very short 

 sparse pubescence, the base of the stem yellowish. Abdomen 

 umber-brown on the dorsal segments, whitish between the seg- 

 ments and underneath, densely clothed with a short brown 

 pubescence ; lamellse of the ovipositor very small, oval. Coxae 

 and femora ochraceons ; tiljise and tarsi ochraceous-brown, the 

 last joints of the tarsi dusky, In the fore-legs the tarsi nearly -^ 

 longer than the tibiie ; in the intermediate-legs the tarsi about \ 

 longer than the tiVjise ; in the hind-legs of equal length. Spurs 

 honey-yellow, about the length of the fourth taisal joint. First 

 joint of the tarsi in the fore- and intermediate-legs twice the 

 length of tlie second, in the hind-legs 2 J times the length ; .second 

 joint 5 longer than the third and etjual to the fourth and fifth 

 together; third joint | longer than the fourth ; fourth joint about 



