422 ]!ilis.s G. Ricardo — .1 Revision of 



Length 7 lines. 



Tlie description of tliis reads suspiciously like that of 

 BeUgmoneura lascua, Walker ; but this genus is distinguished 

 by the broad third joint of anteniue, almost the same width 

 throughout; this last particular is true of H. lascus, but the 

 width is not very great. Schiner gives no idea of the 

 proportion of the width to the length. 



Dysmachus, Loew. 



Dipt. Siidafrik. p. 143 (1860). 



Lnphonotm, M.-icq., Dipt. Exot. i. (2j (1838), pneocc. Steph. Lepid. 

 1829, 



The genus distinguished by the mane-like bristles on 

 dorsum of thorax is only represented in the Australasian 

 Region as yet by one species from Melbourne, viz. : — 



Dijsmac^ius rwlis, Walker. 

 List Dipt. pt. vii. Suppl. iii. p. 737 (Asilus) (1855). 



Type {S) fi'oin Melbourne (Baly Coll.). 



A small dull-coloured species with hyaline loings. Legs 

 black, tibiae reddish. 



Length 12 mm. 



Face b'ackish, covered with dull yellowish toaieutura ; 

 tubercle occupies centre of face, not very large ; the 

 moustache, consisting of stroug black bristles, reaches to 

 the antennse ; the oral aperture surrounded at sides by dull 

 yellowish hairs, a few of these are intermixed with the 

 moustache below. Antenna blackish, the first two joints 

 together not so long as the third joint, both with thick 

 black liairs ; the third joint long, cylindrical, with a short 

 style-like arista. Forehead with some long black hairs, 

 longest on the ocelligerous tubercle. Hind part of head 

 with yellowish hairs and black incurved bristles at vertex. 

 Thorax brownish, with stripes of yellowish tomentum, the 

 black hairs long, bristly, disposed like a mane, reaching the 

 whoh; length of the thorax. Scutellum paler coloured, with 

 two long black bristles. Abdomen brownish, with some 

 yellowish tomentum, black bristles on posterior borders of 

 segments not reaching the centre, dorsum with short black 

 pubescence, sides of basal segments with larger j'ellowish 

 hairs. Genital organs black, fairly large and prominent. 

 Legs black, the coxae and underside of femoi'a with long 

 yellowish hairs, the tibiae dull reddi&h on basal two-thirds, 

 first joint of tarsi same colour ; pubescence yellowish on the 



