68 DIPTERA OF AUSTRALIA, 



Sub-genus 3, Diplosis, Loew. 



Diplosis, H. Loew, D.B. IV. 1850, p. 20 ; Rondani, II.'^'' Mem. 

 Parma, 1840, &c. ; Whmertz, L.E., 1853, p. 187 ; O.-Sacken, Mon. 

 Dipt. N. America, 1862, p. 176; Schiner, F.A., II. 1864, p. 382. 



Second longitudinal vein reaching the margin of the wing either 

 at or beyond the apex (PI. ii., figs. 6 and 7). Antennae of the ^ 

 2- + 24-jointed ; joints pedicelled ; simple joints alternating with 

 double ones or all the joints quite sim|)]e, in the latter case the 

 joints having only one hair-whorl ; joints sometimes with the 

 hair-whorls equally long on the upper and under sides, often 

 decorated with long stiff hairs on the upper side. Antennae of the 

 2 2- -I- 12-jointed ; joints sub-sessile or having very short pedicels, 

 cylindrical. Wings either unspotted or variegated. 



A. Second longitudixal vein reaching the margin of the 



WING AT or before THE APEX. 



1. Flagellar joints of the antennae in the ^ alternately single 

 and double. (All 9s with unspotted wings, the ^s not 

 being known are located provisionally in this gi'oup). 

 a. Wings unspotted. 



12. Diplosis leptospermi, sp.n. 



(J. — Length of antennae 0-070 inch ... 177 millimetres. 



Expanse of wings 0-070x0035 ... 1-77 x 0-88 



Sizeofbody 0-070 x O'lO ... 1-77x0-25 



Antennte pale brown, alternate joints one-half larger than 

 the intermediate ones, suV>-globose ; vertic^ils short, dense ; 

 pedicels shorter than the joints ; basal joints large. Hypostoma 

 and front pale brown. Palpi short, slender, pale brown, with a 

 minute yellowish pul^escence. Thortix dull ochraceous-brown, 

 yellow pubescence ; scutellum small, narrow, with a sparse 

 yellowish pubescence ; pleura? ochraceous, tinged with brown. 

 Poisers ochraceous, densely pubescent ; stalk slender ; club large, 



