50 DIPTERA 



more than twice tlie length of the first ; third joint much longer than 

 the third of the antennae, stout, though tapering for full one-third of 

 its length, slender from thence to the tip. Thorax covered with a 

 dark-grey bloom, which is interrupted by three indistinct black stripes, 

 hoary on each side. Scutellum ferruginous, armed with some long 

 black spines. Abdomen nearly oval, not longer than the thorax, 

 tessellated or adorned with hoary reflections, which are interrupted by 

 four rows of black intervals ; the latter are most conspicuous on each 

 side. Legs black, slender, rather long, clothed with black hairs and 

 bristles ; foot-cushions small, pale tawny. Wings grey, brown along 

 the borders of the veins ; wing-ribs dark tawny ; veins black, tawny 

 at the base ; tip cross-vein forming an angle with the fourth longitu- 

 dinal vein, which projects a little beyond, curved inward near the base, 

 slightly waving from thence to the tip, joining the border a little 

 above the tip of the wing. Scales tawny, with dark borders. 



Length, 4 lines. 



New Zealand (Dr. Sinclair). 



Genus-EURIGASTEE. 



Macquart. 



Body broad. Face oblique, generally naked; epistome scarcely 

 salient. Front broad in both sexes. Antennas reaching the epistome, 

 the two first joints equally short; the third at least four times the 

 length of the second. Eyes often hairy. Abdomen oval, generally 

 with bristles in the middle of the segments. First posterior cell 

 reaching the margin of the wing near the point ; . discoidal vein 

 generally straight after the elbow, sometimes incomplete ; no spine on 

 the exterior margin. 



E. FEREDAYI, Sp. TIOV. 



Thorax dark brown, with two indistinct longitudinal black lines. 

 Scutellum and posterior corners of mesonotum light l)rown. Both 

 thorax and scutellum with long black bristles. First segment of 

 abdomen brown ; the three last bright metallic-blue, with black hairs 

 and bristles. Head dark brown, Avith black bristles ; lower face grey ; 

 epistome yellow. Antennae, palpi, and proboscis brown. Legs brown, 

 with black bristles. Wings hyaline. 



Length, 31 lines. 



Dunedin. 



This species and the next are parasitic in the larva of the basket- 

 moth {Liothula omnivora, Fereday). 



