488 A Revision of the Asilida' of Australasia. 



and from Hobart {J. J. Walker). In Mr. Frenches coll. 

 specimens from Victoria. 



A species easily recognized by the dark colonring on fore 

 border of wing. Reddish brown, with two yellowish narrow 

 segmentations on abdomen. 



Type ((J) 12 ram. Bigot gives 18-21 ram. for B. macidi- 

 nervis. Specimens range from 12-"20 ram. 



Face covered with greyish or yellowish tomentnm, and 

 with two black shining stripes starting together frora below 

 the antennae and becoming broader and separated below, 

 jMoustaehe of many weak white bristles continued up the 

 face as whitish hairs. Palpi large, red, with many black 

 bristly hairs. Antennce red, the first two joints with black 

 hairs ; the third about twice as long as the first two 

 together, with a distinct style. Forehead black, shining, 

 with numerous long white hairs. Thorax reddish, black on 

 dorsum, with scanty white pubescence, sides leddish, black 

 anteriorly, with three greyish or yellowish tomentose stripes, 

 one on the prothorax and the otliers above the second and 

 third pairs of legs. Scutellum reddish. Abdomen reddish, 

 shining, somewhat darker at base, the third and fourth seg- 

 ments with very narrow pale yellow posterior borders; hairs 

 at sides whitish, and a little pubescence of the same colour 

 on dorsum. Genital organs in male prominent, with long 

 white pubescence ; in the female the ovipositor small, ending 

 in a circlet of spines. Leffs the same colour as abdomen, 

 the tibiae at base bright yellow, femora largely black below, 

 bristles black. Wings large, hyaline, with deep brown 

 colouring on the fore border, extending from the base to 

 the apex, filling the first broad cell and the base of the 

 second one, reaching across the base of it and of discal and 

 fourth posterior cells, then bordered by the third longi- 

 tudinal vein till it reaches the fork, where it spreads slightly 

 beyond the posterior vein of fork, leaving the apex of second 

 subniarginal cell clear. 



This description is chielly taken from Walker's ty[)e and 

 from the specimen identified with D. Vunbipennis, both males, 

 together with a female from jMelbourne. 



Some of the other specimens vary in the following parti- 

 culars, but appear to be the same species, none of them 

 varying in tlie extent of colouring of the wing: — The/oce is 

 black in the centre or reddish. ]\Ioustache black. Only 

 the posterior tibite are yellow at base, or none are yellow, 

 the knees above representing this colour. The yellow seg- 

 mentations on abdomen are absent. 



[To be continued.] 



