

120 DIPTERA OF AUSTRALIA, 



about the length of the head and rostrum taken together ; first 

 joint of the scapus obconical, the second nari-ower, cyathiform ; 

 flagellar joints progressively diminishing in length, beset with 

 ».short hairs, the first joint cylindrical, the second to ninth more 

 convex beneath ; penultimate joint narrower ; terminal joint 

 minute. Eyes rather approximate beneath. Front flattened, with 

 a slight gibbosity anteriorly (above the base of the antenna). 

 Collare slightly prolonged into a neck. Thorax elongate-ovate ; 

 metanotum abruptly angled posteriorly. Abdomen slender, cylin- 

 drical, clothed with a microscopic pubescence ; ^ genitalia not 

 incrassate, the lamella terminalis supera deeply emarginate. Lews 

 very long and slender ; fore and intermediate tibiae with a single 

 sHbrt spur, hind pair with two; tarsi very slender, more than twice 

 ^he length of tibise ; last joint of tarsi nodose at base ; ungues tolerably 

 strong, arcuated, bidentate beneath (Pl.Vr;, fig. 47); empodia minute. 

 Wings lanceolate, longer than entire body ; anal angle distinct, 

 but rounded. Auxiliary vein reaching first longitudinal opposite 

 inner end of second submarginal cell; first longitudinal vein 

 joining second a little before origin of anterior branch ;* ultimate 

 section of second longitudinal considerably arcuated ; inner end of 

 second submarginal cell a little before that of first posterior, but 

 beyond that of discal cell ; second posterior cell with a moderately 

 long petiole ; discal cell pentangular, longer than broad, in more 

 than punctiform contact with fifth posterior cell immediately 

 before the middle of its length. • 



These insects also occur in N. America, Africa, India and Java. 



420. HOLORUSIA CONSPICABILIS, sp.n. 



(J.— Lengthof antennai 0-120 inch ... 3 04 millimetres 



Expanse of wings 1-000 x 0-200 ... 25-40x5-08 



Size of body 0-850x0-130 ... 21-58 x 3-30 



* The tip of the first longitudinal vein (spoken of as " the cross-vein" by 

 Loew) is not obsolete in H. conspicabilis, but clearly reaches the second 

 Jongitudinal. It is evident that this author regarded the cross-vein between 

 the ^iosta and first longitudinal vein as being the tip of the latter. 



