BY FREDERICK A. A. SKUSE. 803 



a little longer than distance between origin of third longitudinal 

 vein and small cross-vein ; base of third posterior cell situated 

 very slightly before that of second posterior ; great cross-veins 

 joining fourth longitudinal vein a short distance before inner end 

 of third posterior cell. 



Hab.—Monnt Kosciusko, N.S.W., at 5000 ft. ; March (Helms). 



Ooie specimen in Coll. Australian Museum. 



Genus 12. Molophilus, Curtis. 



Molojyhilus, Curtis, Brit. Ent. X. p. 444, 1833 ; O.-Sacken, Mon. 

 Dipt. N. Amer. lY. p. 153, pi. I. fig. 19, 1869; Studies, II. p. 

 192, 1887. 



"Two submarginal cells ; four posterior cells ; discal cell open. 

 Wings pubescent along the veins only. Second longitudinal vein 

 usually originates at a very acute angle, some distance before the 

 middle of the anterior margin ; subcostal cross-vein is at a con- 

 siderable distance from the tip of the auxiliary vein ; the prcefurca 

 ends in the first submarginal cell, which is longer than the second ; 

 the inner end of the discal cell (or rather, as it is always open, of 

 the second posterior cell), as well as the great cross-vein, not in 

 one line with the small cross-vein, but much nearer to the root of 

 the wing. Antennae 16-jointed. Tibiae without spurs at the tip ; 

 ungues smooth on the under side ; em podia distinct." (Osten- 

 Sacken.) 



I quite agree with Baron Osten-Sacken that this is a distinct 

 genus. To the American, European, and New Zealand species 

 already recorded, I now add fourteen species from Australia. It 

 appears to be one of our best represented genera, both as regards 

 species and individuals. Some species are very numerous. 



The venation seems to be very much the same in all the follow- 

 ing species, not exhibiting any noticeable specific characters ; the 

 hairy clothing of the veins, however, differs in length and density. 

 Molophilus longicornis is remarkable in possessing very long 

 antennse. 



