238 DIPTERA OF AUSTRALIA, 



226. Chironomus blandus, sp.n. 



2- — Length of antennae 0-025 inch ... 0*62 millimetre. 



Expanse of wings 0'135xO-037 ... 342 x 0-92 



Sizeof body 0-150 x 0-027 ... 3-81x0-68 



Antennae light brown, tinged with ochreous. Head, clypeus, 

 and palpi light brown; pale pubescence. Thorax pale greenish- 

 yellow, with three pale fulvous stripes more or less tinged with 

 greenish ; longitudinal row of pale hairs between the bands 

 from anterior extremity of lateral ones to scutellum ; pleurse, 

 pectus, scutellum and metanotum pale greenish-yellow ; scutellum 

 fringed with long pale yellow hairs. Halteres pale greenish- 

 yellow. Abdomen twice the length of thorax, pale prasinous, the 

 last two segments brownish, (the last five segments brownish 

 beneath, but this may be merely discoloration) clothed with 

 tolerably long pale yellow hairs. Legs pale greenish-yellow, fore 

 tibiae and tarsi, and last four tarsal joints in intermediate and fore 

 legs more or less brownish. Tibial spurs deep brown. In fore 

 legs metatarsus about twice the length of tibia. Wings longer 

 than abdomen, pellucid, somewhat opaline, costal, first and third 

 longitudinal, middle cross-vein, and basal half of the fourth longi- 

 tudinal veins distinct, greenish-yellow. Costal and third longi- 

 tudinal veins meeting a little before apex of wing ; auxiliary vein 

 indistinctly reaching costa about opposite middle of posterior 

 branch of fifth longitudinal fork; second longitudinal pale, 

 running close to first longitudinal and for a little distance along 

 costa ; fourth longitudinal vein pale beyond middle cross-vein, not 

 quite reaching wing-margin, its tip situated at a point about half 

 way between tips of costal and anterior branch of fifth longitu- 

 dinal fork ; base of the latter lying somewhat beyond middle cross- 

 vein, its posterior branch J the length of anterior. 



Hah. Narrabeen Lagoon, near Manly, N. S. Wales (Skuse). 

 January. 



