
REVISIONARY CLASSIFICATION OF RUTILIINI 47 
these possibilities, so specific names are maintained as valid in the present work 
unless the types on which they are based show complete agreement in their characters 
(hair colour included). In taking this approach I have perhaps erred on the side of 
accepting too many nominal species as valid, but in the present state of knowledge it 
is better to do this than to establish synonyms on inadequate evidence of conspeci- 
ficity. 
KEY TO THE SUBGENERA OF RUTILIA 
| Note: Occasional specimens may have four postalar setae on one side and three on the 
other: such specimens should be run as if four setae were present on both sides. R. micropalpis 
is subgenerically unplaced and will not therefore run out in the key (it is distinguished from 
all other Rutilia s.1. by the very reduced palpi and other characters noted on p. 92).] 
1 Parafrontals non-pollinose, brilliant metallic green to blue-violet. Postalar callus 
with three setae. Hind tibia without anterodorsal fringe and without definite ad 
or pd setae. [Eastern Australia] . : ; NEORUTILIA Malloch (p. 48) 
— Parafrontals pollinose, either without metallic colour or with mere trace near vertex 
(except in species from Philippines but then four postalar setae). Postalar callus 
with either three or more setae. Hind tibia either with well developed close-set 
anterodorsal fringe or with some well developed ad or pd setae, or with both fringe 
and pd setae. : : : 
2 Suprasquamal ridge bare ani postalar callus with four or five setae. Metallic green, 
blue to purplish black forms with bold white pollen spots on thorax and abdomen. 
{Eastern Australia] : , : AMENIAMIMA subgen. n. (p. 51) 
— Suprasquamal ridge haired, or " bare then only three strong setae on postalar callus. 
Colour and pattern varied, but if bold white pollinose spots present then either 
three setae only on postalar callus or parafacials haired. 3 
3 Postalar callus with four or more strong setae. Hind tibia w ith an antecedorsal 
fringe. One sternopleural seta (o + 1), at most only a very weak anterior sterno- 
pleural seta distinguishable among the hair. Hair of suprasquamal ridge long, 
dense and bushy, often crinkled and often extending on to basal depression of 
lower calypter 5 : . : : : ; ; : 4 
- Postalar callus with three strong setae. Hind tibia without a definite anterodorsal 
fringe (occasional species with weakly developed or irregular fringe). Two or three 
sternopleural setae (I + 1 or 2+ 1), anterior st// conspicuous amongst the 
sternopleural hair. Hair of suprasquamal ridge rather short and sparse, not 
noticeably crinkled and never extending on to base of lower calypter (lower calypter 
always entirely bare) 
4 Last abdominal tergite (T5) with a inedian depression and a meee faeeverse row of 
strong erect setae. ¢ genitalia with very large broad foliaceous surstyli (Text-figs 
66-71) without sharp pointed tip. Scutellum usually distinctly flattened and 
without distinct preapical setae in front of the marginal row. Pteropleural hairing 
not developed in front of the level of the posterior stp/ seta (Text-fig. 20). Inner 
half of humeral callus with at least a trace of humeral setae distinguishable from 
the hair (humeral callus usually therefore with three or four distinguishable setae 
even if the innermost one or two are very weak). Head with dark ground colour. 
[Australia, Solomon Islands to Samoa] . : DONOVANIUS Enderlein (p. 69) 
— Last abdominal tergite ([5) evenly convex across its width, without median depres- 
sion or at most with only a mere trace of apicomedian hollowing; T5 normally 
without any development of strong setae, vestiture composed only of fine erect 
hair (some setae present in species from Philippines, and some other species occa- 
sionally with some of the erect hair stronger than remainder). ¢ genitalia 
tN 
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