398 DIPTERA OP AUSTRALIA, 



about ^ longer than the tibiae ; in the intermediate-legs the tibiae 

 and tarsi of equal length ; in the hind-legs the tibiae about ^ longer 

 than the tarsi. Spurs short, brown. First joint of the tarsi 3 

 times the length of the second ; second joint | longer than the 

 third and about the length of fourth and fifth taken together. 

 Wings pellucid, with a pale greyish tint, darker between the 

 second longitudinal and costal veins ; costal and first two 

 longitudinal veins deep brown ; rich margaritaceous reflections. 

 First longitudinal vein reaching the costa a short distance before 

 the base of the fork ; cross-vein distinct, situated beyond the middle 

 of the first longitudinal vein ; petiole quite as distinct as the fork> 

 not f the length of the posterior branch ; branches considerably 

 arcuated posteriorly, running almost parallel for the greater part 

 of their length, the posterior one slightly divergent at the extreme 

 tip. f(j twice the length of gh ; hi about ^ the length of Im. 



Hah. — Berowra, Hawkesbury district, N. S. W. (Skuse) 

 January. 



452. SCIARA ADJUNCTA, Sp.n. 



2. — Length of antennae 0"040 inch ... l-Ol millimetres. 



Expanse of wings 0.110x0-040 ... 2-79xl-01 



Size of body 0-100 x 0-016 ... 2-54x0-40 



Antennae black, with a pale yellowish pubescence ; slender, 

 about as long as the head and thorax combined ; joints of scapus 

 with a sparse minute pubescence ; flagellar joints sub-sessile, 2 to 3 

 times as long as broad, the terminal joint about \ longer than the 

 one immediately preceding. Head black, almost opaque. Eyes 

 contiguous above. Palpi black. Thorax black, almost opaque, 

 with three longitudinal indistinct rows of very minute yellowish 

 hairs, the intermediate row extending beyond the middle ; scu- 

 tellum with some moderately long black hairs. Hal teres black, 

 the stem yellowish. Abdomen deep sooty-black, not quite as 

 black as thorax, clothed with very short hairs ; lamellae of the 

 ovipositor black, oval. Coxae brown, the fore and intermediate 

 pairs tinged with ochreous on the apical half. Femora ochreous. 

 Tibiae brown. Tarsi black. In the fore- and intermediate-legs 



