62 R. W. CROSSKEY 
R. (C.) imperialoides Crosskey sp. n. AUSTRALIA (Victoria to Queensland). 
[Holotype examined]. 
R. (C.) nana (Enderlein)comb.n. Kat{[=Ker|Istanps. [Holotype examined. ] 
R. (C.) panthea (Walker). AusTRALia (South Australia, Western Australia). 
[Holotype examined]. 
R. (C.) rubriceps Macquart. AUSTRALIA (Queensland, ? Tasmania), CEYLON, 
Inp1A, VIETNAM, Buru, ? Timor. [Holotype examined]. 
angustigena (Enderlein) syn. n. [Lectotype examined]. 
serena (Walker) syn. n. [Neotype examined]. 
nitens Macquart. [Holotype examined]. 
formosina Curran, 1930 syn. n. [Holotype examined]. 
R. (C.) splendida (Donovan). AUSTRALIA (Victoria to Queensland). [Neotype 
examined]. 
australasia Gray. [Type-material lost: synonymy established by Walker 
(1849 : 863) considered correct]. 
confluens (Enderlein). [Lectotype examined]. 
evanescens (Enderlein). [Holotype examined]. 
R. (C.) transversa Malloch. AusTRALIA (Western Australia). [Holotype 
examined]. 
KEY TO SPECIES OF THE SUBGENUS CHRYSORUTILIA 
[Note : The following key excludes the three species from the Philippines which are placed in 
separate species-groups and can be recognized from the group characteristics given elsewhere. 
The key attempts to place only the described species which are recognized in the present 
revisionary classification: specimens of undetermined, possibly new, species exist in museum 
collections and will not necessarily run out in the key (apart from a few species with distinctive 
male genitalia, such as cryptica sp. n., there is still much doubt about specific limits in this 
subgenus, and the supposed species tend to intergrade).] 
I Hair of pleural regions of thorax pale yellow to golden orange. Hair of suprasquamal 
ridge yellow. Hair of fore coxae partly or entirely yellow to golden red. 
Mesonotum of ¢ with much pale yellow to golden hair (except in 7desa). 
Mesonotum without conspicuous white pollinosity, appearing metallic from almost 
any viewpoint . 2 
— Hair of pleural regions Pees Hair of epeequacsal ridge black (cope in rb 
Hair of fore coxae entirely black or at most with a few yellow hairs near base. 
Mesonotum of ¢ with entirely black hair. Mesonotum with rather thick white 
pollinosity on anterior part of prescutum, usually over humeral calli and usually 
also on a supra-alar spot each side of scutum (pollinosity usually conspicuous to 
naked eye, but if not then conspicuous under microscope from some viewpoint 
as fly is turned) . 7 
Genal hair blackish brown. Mesonotal hair of 3 blackish brown. c ponies 
with surstyli and cerci as in Text-fig. 77 : R. idesa 
[This species is known only from Walker’s ¢ Roane on an fae 
Australian locality but appears to be distinct from any of the subsequently 
described nominal species. ] 
Genal hair yellowish white to golden yellow. Mesonotal hair of g mainly or entirely 
pale yellow to golden or golden orange.  surstyli and cerci not so shaped c 3 
Species from Kei Islands. Mesopleuron with well developed white pollinose spot. 
Abdominal Tr + 2 with all black hair . - : 5 - . ‘ R. nana 
