Marshall. — On Neio Zealand Dvptera. 297 



curved inwards. Scutellum black, bordered with long black 

 hairs. Metathorax and pleurae black, smooth. Hal teres with 

 stout yellow pedicel bearing an elongated black club densely 

 covered with a black pubescence. Abdomen slender, black, 

 densely clothed with black hairs. Coxae rather stout, light- 

 yellow"; femora darker, more compressed, and thickly 

 clothed with short yellow hairs ; tibiaB hght, but thickly 

 covered with short black hairs ; tibiae of fore-legs half as 

 long as tarsi, in posterior legs tibite nearly as long as tarsi ; 

 long spines on tibiae and short ones on tarsi, black ; spurs 

 greyish-browa]. Wings with a pale-brownish tint, veins brown ; 

 surface microscopically pubescent. A few long black hairs 

 on first and second longitudinals ; auxiliary distinct ; fifth 

 longitudinal rudimentaiy. 



I have taken four specimens of this insect. It appears to 

 be rather widely distributed. It is closely allied to A. sydney- 

 ensis, of Australia. 



Genus Zygomyia, Winn. 



Tips of the costal and second longitudinal vems uniting 

 far before the apex of the wing ; auxiliary vein incomplete, 

 bent anteriorly, gradually disappearing or only forming a 

 tooth ; apex of the inner marginal cell not situated beyond 

 the base of the second submarginal cell ; petiole of the fork 

 of the third longitudinal vein very short ; anterior branch of 

 the fourth longitudinal vein wanting ; fifth longitudinal vein 

 incomplete ; sixth longitudinal vein in most cases large. 



I have placed the following species in this genus, though 

 in some respects their alar venation varies from that described 

 above : in particular, the fork of the third longitudinal vein 

 has a moderately-long petiole, and the sixth longitudinal vein 

 is wanting. 



Zygomyia flavicoxa, sp. nov. Plate XI., fig. 6. 



Length of antennae, 0041 ; size of body, 0-093 x 0-024 ; 

 expanse of wing, 0088 x 0-035. 



Antennae a little longer than head and thorax together ; 

 joints of scapus about equal in size, cyathiform, about as long 

 as broad, light-brown large sette on the anterior margm of 

 second joint ; flagellum dark-brown, rather compressed, the 

 joints rather broader than long, densely covered with pubes- 

 cence giving silvery reflections. Palpi hght-yellow. Two 

 lateral ocelli fairly large, central one small, situated in a 

 marked depression. Front broad, black, with a few hairs 

 giving yellowish reflections. Thorax with all the central 

 portion "black, humeral patches yellow, and lateral portions 

 light-brown ; everywhere covered with numerous hairs giving 

 yellowish reflections. Metathorax and pleurae black. Scutel- 



