48 Re We CROSS KEY 
with elongate surstyli which end in a sharp pointed tip (Text-figs 72-84). Scutellum 
convex and with an irregular row of small but definite horizontal preapical setae 
in front of the marginal setae. Pteropleuron haired on the anteroventral part in 
front of the level of the posterior stp] seta (Text-fig. 19). Inner half of humeral 
callus without setae developed amongst the hair (humeral callus therefore only 
with the two setae on the outer half). Head usually with bright yellow ground 
colour. [Widespread in Oriental and Australasian Regions] 
CHRYSORUTILIA Townsend (p. 54) 
5 Last abdominal tergite (T5) with a median depression. Abdominal T3 with a 
transverse row of at least a few, usually many, strong erect spiniform marginal 
setae. Scutellum distinctly flattened or slightly hollowed before the apex. 
Suprasquamal ridge bare or haired. Arista micropubescent. Setae of inner 
ventral ends of abdominal tergites rather strong and directed downwards as well as 
backwards. <¢ sternite 5 with normal simple lobes. [Australia] 
RUTILIA Robineau-Desvoidy s.str. (p. 77) 
— Last abdominal tergite ([5) without a median depression, the upper surface evenly 
convex or at most with only a trace of flattening at the tip. Abdominal T3 without 
a transverse row of marginal setae, or if a row present then the setae not markedly 
spiniform. Scutellum evenly convex on upper surface. Suprasquamal ridge 
haired. Arista long-pubescent to short-plumose. Marginal setae of tergite 
venters usually weak or hair-like and nearly completely recumbent (not projecting 
noticeably downwards). <3 sternite 5 atypical, shaped either as in Text-fig. 32 or 
as in Text-fig. 33 . 6 
6 6 sternite 5 as in Text-fig. 3 By the eae wary Sirouely, Receaaneiee on each side ead 
provided with a pair of submedian downwardly directed protuberances. Distal 
membranous part of g aedeagus exceptionally long and whip-like (about twice as 
long asthe sclerotized proximal part of distiphallus, Text-fig. 38). Only one 
posterior intra-alar seta (exceptionally a small second seta present in front of main 
one). Q normally without, or with one pair of, proclinate orbital setae. Thorax 
with distinct white pollinose areas (often forming bold white spots) over meso- 
pleuron, sternopleuron, humeral callus and supra-alar area of scutum. [Tasmania 
to Queensland] . : : : GRAPHOLOSTYLUM Macquart (p. 83) 
— dsternite 5 as in Text-fig. 32, the sternite without such acuminate sides and without a 
pair of submedian protuberances. Distal membranous part of gj aedeagus normal 
in size, shorter than proximal sclerotized part of distiphallus (Text-fig. 37). 
Normally two post 1a setae (but only one in occasional specimens). @ normally 
with two pairs of proclinate orbital setae (occasionally one or none). Thorax 
without distinct white pollinosity and therefore lacking bold white spots. [Tas- 
mania to Queensland; one undescribed species seen from New Guinea] 
MICRORUTILIA Townsend (p. 86) 
Subgenus NEORUTILIA Malloch 
Neorutilia Malloch, 1936: 17. Type-species: Rutilia (Neorutilia) simplex Malloch, 1936, by 
original designation. (As subgenus of Rutilia Robineau-Desvoidy, 1830). 
Diacnosis. Parafrontals metallic (hardly at all pollinose). Epistome metallic; genal dila- 
tions entirely metallic (trace of thin pollinosity in some lights). Facial carina flattened on outer 
surface, strongly contracted (‘pinched-in’) ventrally in 9, not separated from lunula by distinct 
depression. Parafacials bare. 2 without proclinate orbital setae. Arista bare (unusually 
long and slender). Humeral callus with 4-5 setae. Posthumeral setae absent in g, variably 
2-3 in 9 (one near inner edge of humeral callus and at least one near presutural seta). One 
post ia seta in $, one or two small post ia setae in addition to main one in 9. Scutum with super- 
numerary prescutellar setae, forming in all a transverse row of about 12 very strong stiff setae 
