536 A REVISION' OF THB C'HIHOMyzlN 1 (DIPTERA), 



black. Seen dorsallv tlie iieai! is coiis|)ii_niimsly more prominent iR'tween the eyes 

 than in Metopuuiu rubriceits Maequart. The tiist joint of the antennae is about 

 twice the length of the secontl, and the tliird joint is missing. 



The thorax, seutellum and abdomen are as in M. rubrieeps; they are black 

 with a dull yellowish tinge on the post-alar callus, which character is also often 

 present in M. rubrieeps; this colour extends on to the seutellum and fonns an 

 apical margin in the holotype only. 



The legs, as in M. rubricep.-:, are red and nuii-h stained with black. 



The wings are fuscous and liave the radial vein branching from the base or 

 fslightly' beyond the base of the cubital vein, wliich is forked at, or beyond, the 

 middle of its length . _ The first and second posterior veins issue from the discal 

 cell separately. 



S. This sex is blackish in cohnir and has a yellnwisli tomentum; the eyes are 

 contiguous, the ocellar and antennal triangles are \ eiy small, the latter reddish ; 

 the epistoma is yellowisli. The antennae are re<ldish or yellowish and much 

 stained with fuscous. Seen dorsally, the shape of the head anteriorly is arched 

 and not flat as in M. rubrieeps. 



The thorax is black and has depressed yellow liairs, tiie liumeral -and jjost- 

 aiar calli and the seutellum are ochraceous. 



The abdomen is black, l)nt the first and second segments may contain a con- 

 spicuous area of yellowish brown ; the genitalia are yellowisli . 



The legs are yellowish and similar to those of the male -of M. rubrieeps. 



The wing's are fuscous and have the radial vein branching from near the 

 base to about one-sixth the length of the cubital vein which is forked at about 

 two-thirds of its length. Tlie first and second posterior veins issue from the 

 discal cell separately or from a point, or they may be stalked. 



Length. — ^. 6 — 7 mm. i ?. 10 mm. 



Hab. — New South Wales:. Leura, Blue Mountains. ;\Iincli. 1020, coHected by 

 Dr. A. Maclean. 



Type. — The holotype 5 and the allotyjie c? were presented to the Australian 

 Museum by Dr. E. ^Y . Ferguson. The i)aratypes. (3 d', 1 V) are in Dr. Fer- 

 guson's collection. 



Genus C h i r o ii v z a Wie<lemann . 



Chiromyza. Wiedemann, Nova Dipt. Gen., 1820, ]>. 19; and Auss. zweiil. Ins., 



i., 1828, p. 237; Bigot, Ann. Soc. Ent. France. (5). ix., 1879, p. 185. 

 Xenomorphu, Maci|uart. Dipt. Exot., i., 1, 1838, ]^. 193; and i., 2, 1839, ]i. 190; 



Hardy, Froc. Roy. Soc. Tas., 1920, p. 37. 

 Larjurn'i, Phillppi, Verb. z.-b. Ges. AVien.. xv., 18(>,5, ji. 728 { ])icoc<iipicd ) ; 



Osten-Saeken, Berl. Ent. Zeit., xxvi., 1882, pp. 3C(), 3(58 and 3§0. 

 llijlorus, Philii3i)i, loc. cit., p. 728: Osten-Sacken, Inc. cit., i>)). 3(58 and 380. 

 Lagarinus, Enderlein, Zool. Anz., xlii., 1913, p. 251; Krober, Wvtsman's Gen. 



Ins., fa.sc. IGl, 1914, p. 13. 

 Metaponia, White, {nee Macquart), Pnn-. Linn. Soc. X.S. Widcs. xli.. 101(1, 



p. 74. 

 f Noiiacris, Walker, Ins. Saund. Dipt., i., 1850, p. 7; Osten-Sacken, I'.erl. Ent, 



Zeit., xxvii., 188.3, p. 296. 

 Sijnonijmii. — Tlie genus CJiirnnn/ui Wiedemann was founded ujioii a Brazilian 



