98 DIPTERA OF AUSTRALIA, 



first longitudinal vein, incurved from that to the second longitu- 

 dinal vein, and descending again almost vertically to the margin 

 about mid-way between the branches of the third longitudinal 

 vein ; a spot at the base of the wing enclosed by the transverse 

 and the first and second longitudinal veins ; a second small longi- 

 tudinal spot over the junction of the first longitudinal with the 

 costal border ; a fourth appearance having the form of a narrow, 

 irregular arcuation starting from the base behind the posterior 

 branch of the third longitudinal vein, extending over the base of 

 the anterior branch, and joining the margin again a short distance 

 in front of the posterior branch ; and lastly another spot occurs 

 at the tip of the wing over the junction of the second longitudinal 

 vein with the margin, indeterminate, somewhat extended poste- 

 riorly. Fringe of the wings pale yellowish, but blackish where 

 the violet markings reach the wing-margin. (Description di'awn 

 from dried specimen). 



Hah. — Woronora (Masters and Skuse). October; in caves. 



49. DiPLOSis DiBAPiiA, sp.n. 



5. — Length of antennae 0*040 inch ... 1"01 millimetres. 



Expanse of wings 0-070 x 0-030 ... 1-77x0-76 



Size of body 0-050x0-010 ... 1-27x0-25 



Antennpe cinereous ; basal joints large, yellowish ; joints of the 

 flagellum sub-cylindrical, more than twice as long as broad, verti- 

 cillate-pilose, four times as long as the pedicels ; terminal joints 

 with a slender projection. Vertex with long golden hairs. Palpi 

 slender, yellowish, Thorax dull castaneous, two longitudinal 

 rows of golden hairs from the humeri to the .scutellum, dense, 

 spreading over the middle cuneiform portion ; also some golden 

 hairs in front of the base of the wings ; pleurse pale brotvn ; 

 scutellum dull castaneous, with golden hairs. Poisers large, with 

 a minute golden pubescence, slightly blackish just beneath the 

 club, the latter pyriform. Abdomen uniformly dull castaneous, 

 terminal joints with a yellowish tinge, densely clothed with 

 yellowish or golden hairs; ovipositor as long as the abdomen, 



