884 DIPTERA OF AUSTRALIA, 



the disk; tips brown ; veins black, luteous at the base. Halteres 

 testaceous. Length of the body, 4-4^ lines; of the wings, 

 10 lines. 



" Van Diemen's Land." 



38 L Gynoplistia fumipennis. Walker. 



Gynoplistia fumipennis, Saund. MSS. In Ins. Saund. by 

 Walker, Vol. I. Dipt. p. 448, 1856. 



" Q. Atra ; pectus canescens ; femora hasi testacea ; tibice 

 posticce fascia subapicali alba; alee nigricantes." 



" Deep black. Pectus somewhat hoary. Femora testaceous 

 towards the base ; hind tibiae with a white band towards the tip. 

 Wings blackish ; veins black. Length of the body, 5 lines ; of 

 the wings, 9 lines." 



" Van Diemen's Land." 



382. Gynoplistia chalybeia, sp.n. (PI. xxiii., fig. 42). 



(J. — Length of antennae 0-075 inch . . 1'89 millimetres. 



Expanse of wings 0-210 x 0-055 ... 5-33 x 1-39 



Size of body 0-210x0-040 .. 5-33x1-01 



Head deep metallic shining blue, clothed at the back with black 

 hairs; rostrum, palpi and antennae black; the latter 16-jointed; 

 first 10 flagellar joints with tolerably long branches; first two 

 branches directed outwards ; the last three decreasing in length ; 

 next three simple joints sub-elliptical ; the terminal joint cylin- 

 drical. Thorax deep metallic shining blue ; pleurae with a hoary 

 bloom. Halteres light fulvous. Abdomen deep shining violaceous- 

 blue ; forceps black. Legs black ; femora fulvous for less than the 

 basal half ; hind tibiae with a broad whitish ring just beyond the 

 middle. Wings hyaline, with three spots ; the costal cell and 

 apex of wing clouded with brown, also a small faint greyish 

 clouding in anal angle, another larger between tip of seventh longi- 

 tudinal and the fifth longitudinal vein, and a third filling basal 



