38 Transactions. — Zoology. 



Rhamphidia levis, sp. nov. Plate IV., figs. 12a, 12b. 



General colour dark-brown ; the mesonotum pale-cinerous, 

 with three broad fuscous bands, the central one going the 

 whole length, the outer pair terminating before the anterior 

 border. Halteres clear, the tips fuscous. Legs fuscous, 

 except the coxse and bases of the femora, which are yellow. 

 Ovipositor yellowish-brown. Wings tinted with fuscous. 

 Antennae very short, 12-jointed, the first joint short, the 

 second large and cyathiform, the third stout, oval ; those of 

 the rest of the flagellura short; and oval. Eostrum longer 

 than the head and thorax together, straight ; the palpi small, 

 placed at the end of the rostrum. The auxiliary vein reaches 

 the costa a little beyond the origm of the second longitudinal. 

 No marginal cross- vein. Praefurca rather less than the dis- 

 tance from the origin of the third longitudinal to the chief 

 cross- vein. Posterior cross- vein in a line with the inner 

 margin of the discal cell. Length, $ 7 mm. ; wing, ? 

 7i mm. ; rostrum, 5 5 mm. The male is unknown. 



Hah. "Wellington (Hudson). 



Although the species here described has the characteristic 

 venation of Rhamphidia, the antennae and palpi differ con- 

 siderably, and the rostrum is longer than the head and thorax 

 together ; but as I have only seen one specimen, which I 

 could not dissect, I place it in Bhamphidia for the present. 



Genus Molophilus, Curtis (1833).' 



" Two submarginal cells ; four posterior cells ; discal cell 

 open. Wings pubescent along the veins only. Second longi- 

 tudinal usually originates at a very acute angle some distance 

 before the middle of the anterior margin ; subcostal cross-vein 

 at a considerable distance from the tip of the auxiliary vein ; 

 the praefurca 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-joiuted. 

 Tibiae without spurs at the tip ; ungues smooth on the under- 

 side ; empodia distinct " (Osten-Sacken). 



Baron Osten-Sacken says that he has in his collection 

 species from New Zaaland. 



Genus Tkimicra, Osten-Sacken (1861). 



" Two submarginal cells ; four posterior cells ; a discal 

 cell ; the second longitudinal vein originates at a more or less 

 acute angle before the middle of the length of the wing, and 

 a considerable distance (more than the breadth of the wing) 

 before the tip of the auxiliary vein ; seventh longitudinal 



