
12 
13 
REVISIONARY CLASSIFICATION OF RUTILIINI 75 
(third antennal segment about 3 times as long as second segment) are almost 
certainly regalis] 
First basal cell without microtrichia.2_ Blackish species with a purple or violaceous 
tinge in most specimens, occasionally a dark greenish black tinge (some dark 
brownish black specimens without metallic tinge occur and resemble inusta: 
careful check on presence or absence of microtrichia along first basal cell essential 
on such specimens) : : 9 
First basal cell with gxiecoicialaia alenn its male length (at least eden. Red- 
brown to very dark blackish brown species, seaeailel without sitesi tinge nee 
coppery purple tinge in ethoda) . 10 
Antennae unusually long, falling short of (eetistemaicll macemiss by shea as noch as 
their own length in g and by conspicuously less than their own length in 9; third 
segment about 3:5 times as long as second segment in g and 4-5 times as long 
as second segment in ? (facial carina correspondingly elongate, especially in 9). 
Thorax with some very pale yellow hair on anterior edge of mesopleuron, on 
ventral edge of humeral callus, around prostigmatic area, on barette and postero- 
ventrally on pteropleuron (sometimes also some pale hairs on suprasquamal 
ridge). Apical pair of scutellar setae conspicuously smaller than other scutellar 
marginal setae . : R. sabrata 
Antennae of normal small size, esnally falling short of pistol margin by more than 
their own length in both sexes; third segment about 2-2-5 times as long as second 
segment in both sexes (facial carina not unusually elongate). Thorax without 
any pale hair. Apical scutellar setae ae not conspicuously smaller than 
other scutellar marginal setae - : . RR. viridinigra 
Thorax and abdomen with burnished coppery bronze or purplish reflections, some- 
times also traces of green colouring. [Western Australia] : ; . R. ethoda 
Body without such burnished reflections (at most only the scutellum faintly violet). 
{Eastern Australia from Tasmania to Queensland] . : II 
Abdomen of $ light reddish brown or tawny brown with conspicuous black median 
line, abdomen of 2 blackish brown or almost black with the median line scarcely 
detectable to naked eye. Smaller species, length usually 13-16 mm R. pellucens 
Abdomen of both sexes very dark, brownish black to black, sometimes very dark 
reddish brown on T3 in the g§ (but ¢ abdomen consistently darker than the more 
tawny abdomen of $ pellucens). Larger species, length usually 16-20 mm_—_—*iR«. inusta 
{Note that the females of znusta and pellucens are not reliably distinguishable 
on present evidence] 
Body unicolorous dark purplish brown. Epistome blackish. All hair black. 
Wings heavily infuscate, especially on anterior half. Calyptrae blackish brown. 
Very large species, length about 20 mm. [Solomon Islands] 
R. brunneipennis sp. n. (p. 76) 
Body either unicolorous green or with green to blackish mesonotum and mainly 
tawny or reddish brown abdomen. Ground colour of epistome reddish yellow. 
Hair black or yellow hair present on pleural regions. Wings not infuscate or (in 
nigrihivtia) with yellowish brown staining along veins. Small to medium sized 
species, length 10-16 mm. [New Hebrides, Fiji or Samoa] : 13 
Hair entirely black. Legs black. Colour uniformly dark green on “thorax and 
abdomen. [Samoa] . : ‘ R. nigrihirta 
Hair of pleural regions of thorax and most of ‘the fore comal hair pale yellow to 
golden orange. Legs partly reddish yellow. Abdomen mainly tawny yellow to 
2 The microtrichia of the first basal cell are very small, and care is needed to determine whether the 
cell is bare (i.e. without microtrichia beyond the brown-pigmented base) or whether it has a band of 
microtrichia along its length (even when present the microtrichia are sometimes confined to an area 
along the middle of the cell). The cell needs to be examined by transmitted light at a magnification 
not less than x 100. 
