232 DIPTERA OF AUSTRALIA, 



tibiae of the fore legs also brown at base. In fore legs metatarsus 

 J longer than tibia. Wings considerably shorter than abdomen, 

 hyaline, veins very pale, ochreous-yellow, marginal cross-vein and 

 portions of the neighbouring veins suffused with deep brown or 

 black ; veins pale. Costal and third longitudinal meeting a little 

 before apex of wing ; auxiliary vein reaching costa opposite tip 

 of posterior branch of fifth longitudinal fork ; second longitudinal 

 distinct for the whole of its length, reaching costa a little past tip 

 of first longitudinal ; fourth longitudinal very pale past the middle 

 cross-vein, almost reaching the wing-margin, its tip about mid- 

 way between tip of costa and that of anterior branch of fifth 

 longitudinal fork ; base of the latter situated opposite base of 

 middle cross-vein, its posterior branch rather more than half the 

 length of anterior. 



Hah. — Nepean River, near Penrith, N.S.W. (Skuse). Sep- 

 tember. 



Ohs. — I have taken but one specimen of this conspicuous 

 insect. 



221. Chironomus egregius, sp.n. 



(J. — Length of antennae 0.070 inch ... 1*77 millimetres. 



Expanse of wings 0-160 x 0-040 ... 4-06 x 1-01 



Size of body 0-270x0-037 ... 6-85x0-92 



Antennae light ochreous-brown ; first joint of scapus light ferru- 

 ginous. Head, clypeus, and palpi ochreous-brown. Thorax pale 

 greenish-yellow, with three broad fulvous bands, middle one united 

 to the scutellum by a fine line ; pleurae pale greenish or greenish- 

 yellow, sometimes, with pectus, pale fulvous ; scutellum pale 

 greenish-yellow, fringed with yellow hairs ; metanotum light 

 umbrous-brown, yellow anteriorly, with a very fine median yellow 

 line. Halteres pale yellow. Abdomen nearly three times length 

 of thorax, prasinous, the last three segments pale brown, each 

 segment marked longitudinally with deep brown, the markings on 

 second, third, and fourth segments olive brown, more or less 



