TILLY ARn. 1(17 



localities, and it seems certain that the eggs are laid also in similar places. A 

 female placed inside a damp glass tube oviposited readily, the egg's being placed 

 singly. The Mies themselves are very tame, and can easily be caught either with 

 a forceps or with the Angers, though they should be approached without un- 

 necessarily irregular movements. The flight is ghostlike, and the insects are not 

 easy to see as they drift up against the white foam of the waters. In sunlight, 

 the violet iridescence of the wings is exceedingly beautiful, and often betrays 

 the presence of the insect when clinging to a rock in the spray of a waterfall. 



Larvae and pupae were abundant, but difficult to locate, owing to the dark 

 colour of the granite rocks forming the bed of the creek. Numbers were finally 

 collected by temporarily damming the stream so as to leave portions of the rocks 

 nearly dry, and then picking the larvae and pupae off them. 



The male of this fly is shown enlarged in Plate xliv., fig. 1, the female in fig. 2. 

 One female was taken which expanded just an inch across the wing's, — a large 

 size for this family. 



E. chilensis Alex, differs from E. australiensis n.sp. not only in the venational 

 characters already mentioned, but also in having spurs 1, 2, 2 instead of 0, 1, 1. 

 Alexander also says that the maxillary palps are 4-segmented, but he has pro- 

 bably overlooked the very short basal segment. 



Genus NEOCURUPIRA Lamb. 



Lamb, Trans. N.Z. Inst., xlv., (1912), 1913, p. 72, figs. 1-5. 



Characters as given in the Key on p. 162, with the following additions : — 

 antennae 12- to 15-segmented ; eyes holoptic in the male, dichoptic in the female; 

 labium very lung and narrow, with the distal segments of the labellum strongly 

 divergent; fore and middle legs rather short, hind leg's very long; spurs 0, 0, 2; 

 anal angle of the wing prominent. 



Genotype: — Neocurupira hudsoni Lamb, (Arthur's Pass, South Island of 

 New Zealand). 



NEOCURUPIRA NICHOLSONI n.sp. 

 (Plates xliv., fig. 3; xlv., figs. 1-3, 5-7, b; Text-fig's. 2, e, d; 3 b; 5.) 



<3. Total length 3, abdomen (shrivelled) l.G, forewing 6, expanse 12.5 mm. 



H e a d ( Text-fig. 2 c, d. ) , large, black, globular, almost entirely occupied by 

 the large eyes, which are bright green in life, dull blackish when dead, and often 

 collapsed in the dried specimen; these eyes are holoptic, and each is divided 

 transversely by a non-facetted band into two approximately equal portions, the 

 upper having larger facets than the lower. A fringe of pale brown hairs borders 

 the orbits above and behind. Ocellar tubercle small. Antennae (Plate xlv., fig. 1 

 6) inserted close together at the base of the narrow triangular vertex, short (0.8 

 mm.), black, 12-segmented, the two basal segments enlarged, the second club- 

 shaped and longer than the first, 3 much shorter and narrower than 2, 4-7 each 

 a little shorter than the one before it, 8-10 subequal, little longer than wide, 11 

 very short and closely attached to 12, which is longer, with well rounded tip 

 carrying two stiff bristles. Labrwm-epipharynx (Plate xlv., fig. 2 b) 0.6 mm. 

 long, slender triangular, the tip sharply pointed. Hypopharynx about the same 

 length, narrower, tip not so pointed. Mandibles absent. Maxillae (Plate xlv., fig. 

 3, b.) with a single-segmented palpus of same length as the galea (0.3 mm.), the 

 palp subcylindrical with rounded apex, hairy, black, the galea very slender, 

 sharply pointed, pale in colour. Labium (Text-fig. 3, b) very long (1.4 mm.), 

 slender, black, projecting downwards one and a half times the whole diameter 

 of the head; labellum with basal segments very long, closely approximated, distal 

 segments shorter, their distal portions curving outwards. 



