352 Transactions. 
more obvious in costal cell; stigma shortly oval, dark brown. Sc, present, 
oblique (as in several species of Macromastix). Rs very short, pie 
slightly longer than R, +53, which is only half as long again as R, ; eet- 
ing R, near the middle; stem of cell M, about one-third as bui as p 
cell Ax rather narrow, of even width throughout. Halteres rather light 
brown. Length of body, 13mm.; wing, 18 mm. ; hind leg—femur 10 mm., 
. Differs from the male s as follows: Front slightly broader, quite one- . 
third as broad as head. Antennae further reduced, flagellum club-shaped, 
very narrow at base, hardly any longer shen scape, composed of five 
indistinctly separated joints, of which first is as long as the other four 
together. Thorax narrow, no broader than base of ыан dark brown, 
unstriped, with hardly any grey dusting. Abdomen blackish, except 
towards tip, second segment not much longer than third. Ovipositor long 
and horny; anal valves straight, stout, with rounded tips, longer than 
rather long anal segment; genital valves also long, straight, reaching 
beyond middle of anal valves. Legs much shorter, stouter, with slightly 
longer pubescence ; front femora somewhat stouter than others. Wings 
reduced to narrow rudiments. Halteres blackish, twisted, apparently in 
the first stage of degeneration. Length of pute ж mm.; wing, 2mm. ; 
hind leg—femur 5 mm., tibia 5:2 mm., tarsus 5:5 
М№овтн ISLAND : Wellington district, April-May (6. y. Hudson, No. 170). 
The male bears a rather striking resemblance to Macromastiz seylandiae 
Alexander, and it is not at all surprising that Hutton should have con- 
sidered the two as varieties of one species. H. heterogama may be а 
development from this group of Macromastix. 
PLATE 27. 
Fig. Fig. 
1. Anisopus notatus (Hutton), ¢. x 6. 12. Dicranomyia decincta n. sp., 4. X 9 
2. Anisopus notatus басо, 9. х 6. | 13. Dicranomyia melanogramma n. 8р., d 
чайга Lamb’s type of Rhyphus 
1 из.) : 14. Dicranomyia cubitalis n. вр... X 5. 
3. fice neozelandicus (Schiner), 9. | 15. Dicranomyia huttoni п. name, d. X 5. 
6. Dicranomyia crassipes n ер А : 5 
s a х 
4. Tanyderus annuliferus Hutton, g. | 17. Dicranomyia repanda n. x 3. 
x3 18. Dicranomyia nnis Butler , 
5. Tanyderus annuliferus Hutton, $. poema К ^ 
х 3. 19. Dicranomyia hudsoni n. sp., &. X 9 
6. Tanyderus neptunus n. s x 3. 20. Dicranomyia tenebrosa, n. 8p., 9. X 3 
5 и forci Cen О.- .- X3. | 21. Dicranomyia conulifera n. a #. x 5. 
[insane фат Bo v. X S 22. Dicranomyia aegrotans n. вр., $. X 6 
d 
jf 23. Di Iker), 
10. Dicranomyia лоў й n. Sp, 4. edm conveniens (Wa er) 
mia luteonitens n. Sp., 4. X 6. 
24. 
11. Dicis sublacteatan. sp., 4. x 5. | 95. сестин gracilis п. sp., 4. X 6. 
