790 DIPTERA OF AUSTRALIA, 



fulvous or brownish-fulvous, levigate, without stripes ; pectus and 

 metathorax somewhat lighter. Halteres pale ochreous-yellow. 

 Abdomen including genitalia brownish-fulvous, slightly infuscated. 

 Legs light testaceous or brownish-ochreous, the femora pale at the 

 tips preceded by a ring of brownish. Wings hyaline or almost 

 so, slightly yellowish between first longitudinal vein and costa ; 

 veins testaceous-brown; stigma rather long, not very distinct, 

 greyish. Auxiliary vein reaching costa at a point almost opposite 

 inner end of sub-marginal cell ; sub-costal cross-vein at its tip, 

 appearing between it and first longitudinal vein ; prsefurca slightly 

 arcuated at base ; small cross-vein equal in length to inner end of 

 second posterior cell ; great cross-vein a little beyond inner end of 

 discal cell. 



Hah. — Narrabeen Lagoon, near Manly, N.S.W. (Skuse). One 

 specimen in January. 



314. Rhamphidia venusta, sp.n. 



(J. — Length of antennae 0*045 inch ... 1-13 millimetres. 



Expanse of wings 0-290 x 0-060 ... 7-35x1-54 



Size of body 0.250x0-035 ... 6 34x0-88 



9- — Length of antennae 0-045 inch ... 1-13 millimetres. 



Expanse of wings 0-290x0-060 ... 7-35x1-54 



Size of body 0.210x0-035 ... 5-33x0-88 



Head, including rostrum, palpi, and antennae deep brown or 

 blackish ; the rostrum about twice the length of head. Thorax 

 pruinose with pinkish- and yellowish-grey, with four deep brown 

 velvety stripes, the intermediate pair beginning below^ the anterior 

 margin and stopping before the transverse suture, the lateral ones 

 broader, beginning below the humeri, reaching the scutellum and 

 jutting triangularly opposite the origin of the wings ; collare 

 deep brown ; mesonotum bordered by a deep brown broad line, 

 usually sending back three small tooth-like oflfshoots, one at each 

 humerus and a middle one (which sometimes meets the anterior 

 extremity of the median longitudinal stripes) ; pleurae with a 



