BY FREDERICK A. A. SKUSE. 243 



(J narrower than terminal segment. Tibial spurs black. In fore 

 legs the metatarsus twice the length of tibia. Wings in ^ shorter, 

 in 9 longer, than the body; pellucid in ^, hyaline in 9, with weak 

 reflections ; veins yellow. Costal and third longitudinal veins 

 meeting slightly before apex of wing ; auxiliary vein very indis- 

 tinct, especially in ^, joining costa a little beyond middle cross- 

 vein ; second longitudinal vein most indistinct in ^, clearly 

 visible in 9, very near first longitudinal; fourth longitudinal very 

 pale beyond middle cross-vein, almost reaching wing-margin, its 

 tip nearer to tip of costal than to that of anterior branch of fifth 

 longitudinal fork ; posterior branch of latter about half the length 

 of anterior branch. 



Ilab. — Middle Harbour, near Sydney (Skuse); Berowra, N.S.W. 

 (Masters). Abundant in September. 



Obs. — Very closely allied to the last, but I think distinct. 



C. Thorax brown or black without distinct stripes. 

 a. Wings icnspotted. 



232. Chironomus erebeus, sp.n. (PI. xi., fig. 5). 



9. — Length of antennse. 0-030 inch ... 0-76 millimetre. 



Expanse of wings O'l 60 x 0*040 ... 4-06x1 -01 



Size of body 0-210x0-033 ... 5-33x0-84 



Antennae brown, with brown verticils ; first joint of scapus 

 black. Head black, glabrous. Palpi brown, and with clypeus 

 densely covered with brown hairs, those on latter longer. Thorax 

 black, sub-nitidous, glabrous ; pleurae and scutellum brownish- 

 black, latter fringed with black hairs ; metanotum black. Hal- 

 teres yellow, sometimes slightly brownish at base. Abdomen 

 more than twice the length of thorax, black, sub-nitidous, sparingly 

 clothed with short black hairs ; lamelli of ovipositor black. Coxae 

 deep brown, slightly ochreous at apex; trochanters ochreous. 

 Femora and tibiae black. Tarsi almost ochreous-brown, slightly 

 infuscated. In fore legs tibia twice the length of metatarsus. 

 Wings hyaline, smoky along anterior border, iridescent ; costal, 



