46 Transactions. — Zoology. 



Genus Macquartia, E. Desvoidy (1830). 



"Flies of moderate size, or small, with ovoid or obloug 

 bodies. The males have the eyes approximate or con- 

 tiguous, and hairy ; in the female they are moderately sepa- 

 rated, and often only pubescent. The antennae are short, 

 with a pubescent arista. Facialia unarmed ; the cheeks bare, 

 but the mentum, or chin, is hairy or bristly. The abdomen 

 has both discal and marginal setae. The wings have the 

 fourth longitudinal vein bent in a curve or blunt angle, and 

 the first posterior cell opens near the apex of the wing" 

 (Meade). 



Macquartia subtilis, sp. nov. 



Male. — Front black, the face pale -yellow. Antennae 

 piceous ; palpi tawny. Thorax dark-brown, with four indis- 

 tinct longitudinal bands ; the sides grey, some long yellow 

 hairs below. Abdomen brown, tessellated on the sides with 

 black and white. Legs black. Squamae pale-brown. Wings 

 tinged with brown ; the fourth longitudinal vein sharply 

 angled at a right angle, and then very gently curved outwards ; 

 a short cubital appendix. Length, 9 mm. ; wing, 7 mm. 



Hab. Wellington (Hudson). 



The third joint of the antennae is barely twice the length 

 of the second ; the arista distinctly pubescent. The eyes are 

 hairy and closely approximated, but not touching. The 

 fronto-orbital bristles do not extend beyond the bases of the 

 antennae ; the cheeks are bare, but there is a well-developed 

 beard. The forehead projects moderately. The abdominal 

 segments have both discal and marginal setae. 



Macquartia vexata, sp. nov. 



Antennae dark-brown. Proboscis and palpi brown. 

 Thorax dark-grey, with several indistinct longitudinal black 

 bands ; scutellum black. Abdomen dark-brown or black, the 

 three last segments with irregular patches of silvery tomentum. 

 Legs dark-brown. Squamae brownish. Wings pellucid ; the 

 first posterior cell with two brown spots, and the discal cell 

 sometimes with a single spot. Costal cell brownish, paler in 

 the middle ; subcostal cell with a brown spot near the end of 

 the auxiliary vein ; marginal and submarginal cells brownish ; 

 the cross-veins, the fifth longitudinal, and the bend of the 

 fourth longitudinal margined with brown. The fourth longi- 

 tudinal curves round to an acute angle with its former direc- 

 tion, and then curves rapidly outwards ; the first posterior cell 

 is closed, or nearly so. 



Male. — Front dark-brown ; cheeks brown, with silvery re- 

 flections. Eyes hairy, somewhat approximated. Length, 

 9 mm. ; wing, 7 mm. 



