192 Transactions. — Zoology. 



those of the flagellurn cylindrical, pubescent, sessile or sub- 

 sessile ; the last joint elliptical or elongate. Legs slender, 

 the coxae moderately elongated ; tibiae with small spurs. 

 Wings large, microscopically hairy. Chief cross-vein in a line 

 with the second section of the third longitudinal. Furcations 

 of the fifth and sixth veins near the base of the wing. 



Sciara marcilla, sp. nov. 



Male. — Antennae rather longer than the head and thorax ; 

 the first and second joints pale, the others brown, the joints 

 sessile ; eyes not contiguous ; palpi dark-brown. Head and 

 thorax dark-brown, the latter with a few black hairs. 

 Abdomen nearly black, with short black hairs. Middle and 

 hind coxae yellow, the rest of the legs tawny. Halteres 

 brown, with a yellow stalk. Wings colourless, the veins 

 almost black, and bordered with fuscous. The first longi- 

 tudinal vein joining the costa inside the base of the fork of 

 the fourth longitudinal. Tips of the third longitudinal and 

 posterior branch of the fourth at nearly equal distances from 

 the apex of the wing. Costa continued some distance beyond 

 the tip of the third longitudinal ; origin of the third longi- 

 tudinal situated very slightly beyond the middle of the first 

 longitudinal. Length, If mm. ; wing, 2| mm. 



Female. — Head, thorax, and abdomen pitchy-black; the 

 legs tawny. Wings colourless; the veins tawny. Length, 

 3 mm. ; wing, 2|mm. The rest as in the male. 



Hab. Christchurch (F. W. H.). 



This species belongs to the same section as S. finitima, 

 Skuse, but the eyes are not contiguous above, the abdomen 

 is darker, and the legs are lighter. S. rufescens, Hutton, 

 from Dunedin, belongs to the section in which the first 

 longitudinal vein joins the costa outside the base of the fork 

 of the fourth longitudinal. 



- 



Genus Trichosia, W T innertz, 1867. 



Characters the same as Sciara, but the surface of the 

 wings distinctly hairy. 



Trichosia remota, sp. nov. 

 Female. — Uniform reddish-bx*ow T n, the middle and hind 

 coxae lighter. Joints of the flagellum subsessile, about one 

 and a half times as long as broad. Fore tarsi longer than 

 the tibiae ; hind tibiae only with short spurs. First longi- 

 tudinal vein short, joining the costa at less than half the 

 length of the wing, its tip lying inside the fork of the fourth 

 longitudinal. Origin of the third longitudinal oblique; the 

 chief cross-vein about the same length as the first section of 

 the third longitudinal. The anterior branch of the fourth 



