
REVISIONARY CLASSIFICATION OF RUTILIINI 63 
Species from Australia. Mesopleuron without white pollinose spot and brilliant 
metallic, or at most with very thin pollinose overlay only visible at certain angles. 
Abdominal Tr + 2 with some pale yellow hair at least on mid-venter and often 
also on anteroventral part, sometimes on whole ventral surface : 4 
Ground colour of parafrontals conspicuously darker than that of ne a 
brown to blackish; inner margins of parafrontals (along the lines of frontal setae) 
usually with distinct traces of metallic green showing through the pollinosity 
(especially in 2), and each side of vertex extensively metallic green or blue-green 
between eye and ocellar triangle. Wing base of § strikingly explanate, the wings 
appearing to have prominent basal ‘shoulders’. Third antennal segment 
mainly dark brown. Abdomen of ¢ appearing to naked eye semipellucid tawny 
reddish with silvery blue or blue-green reflections (i.e. not with clear cut bands on 
a dark ground). g surstyli and cerci as in Text-fig. 81. : : . R. formosa 
Ground colour of parafrontals reddish yellow to reddish and therefore not noticeably 
contrasting with ground colour of parafacials; inner edges of parafrontals without 
trace of metallic colour, at most only slight trace of metallic greenish showing on 
vertex. Wing base of § not explanate. Third antennal segment bright orange 
(except usually some reddish brown suffusion in panthea). g abdomen usually not 
so coloured, with medially interrupted transverse green bands on dark ground 
colour. ¢ surstyli and cerci not exactly of this shape (though similar). . : 5 
Vestiture of fore coxae and hypopleura entirely golden orange. Setulae of post- 
ocular row, the vertical setae, and some thoracic setae usually golden red. 
Abdominal T5 with some pale yellow hair laterally. Parafrontal hair usually 
largely pale yellow or whitish (sometimes all dark, especially in 2). Third antennal 
segment unicolorous orange. Abdomen with the dark hind band of T3 slightly 
bowed forwards on each side, so that the transverse green band of the tergite is 
narrower near the middle on each side than elsewhere. More elongate cee 
in which the abdomen is conspicuously longer than its width . 2 6 
Vestiture of fore coxae and hypopleura partly black (the strongest setae black). 
Setulae of postocular row, vertical and all thoracic setae black. Hair of abdominal 
T5 entirely black. Parafrontal hair all blackish. Third antennal segment 
partly suffused with reddish brown colour, especially on outer side. Abdomen 
with dark hind margin of T3 forming a transverse band of even width (no definite 
bowing forwards on each side), the metallic band of this tergite therefore also of 
even width across the abdomen. More robust species with abdomen not notice- 
ably much longer than its width . - : R. panthea 
Basicosta pale yellow. Setae of postalar callus ad fee at eal base golden red. 
Median abdominal dark line evanescent, virtually absent on T4. [Western 
Australia] . : : 2 . R. goerlingiana 
[This nominal species is peceae not Semitic iia from caesia.] 
Basicosta blackish brown (if slightly pale then at least dark brown on anterior edge). 
Setae of postalar callus and fringe of costal base black (latter may have a very few 
red setulae intermixed). A fine purplish black median line distinct along all 
abdominal tergites. [Western Australia (including Monte Bello Is.) through 
Northern Territory to North Queensland] E : ' . RR. caesia 
Suprasquamal hair orange-yellow. Mesopleuron shining ieillianthy, without white 
pollinose spot. Thorax without very thick white pollinosity over humeral calli 
and each side of scutum. ¢ surstyli as in 2 i 78. {Oriental Region to 
Queensland] , ‘ : R. rubriceps 
Suprasquamal hair black. pie pledin — cise ‘siiite peliniose spot or 
extensively coated with white pollinosity conspicuous in some light (except in 
corona). Thorax with thick white pollinosity over humeral calli and usually on 
each side of scutum (if not evident to naked eye then distinct in some lights 
