REVISIONARY CLASSIFICATION OF RUTILIINI 59 
valid species pending more evidence. The name splendida Townsend, being herein 
applied to a species of Rutilia s.l., becomes a junior secondary homonym of 
R. splendida (Donovan), and the name townsend1 is therefore here proposed for the pre- 
occupied splendida Townsend (the new name will enter synonymy with Juzona 
Enderlein if it is later shown that the types of splendida Townsend and luzona 
Enderlein are conspecific). 
The BMNH collection contains two females of this group in rather bad condition 
that were formerly in Bigot’s collection and are from an unknown locality (though 
Philippines seems probable). These females were the specimens for which the late 
Dr Paramonov had intended formally to erect the genus Formotilia, and which were 
| the basis for the entry ‘gen.nov. No. 2’ and the footnote giving the published name 
| Formotilia in his posthumous paper (Paramonov, 1968) ; one of the specimens bears a 
| name label in Paramonov’s writing on which the generic name Formotilia is given. 
This name, though published, is unavailable in nomenclature (no fixation of a type- 
_ species), but the existence of the specimens in BMNH which were seen and labelled 
| by Paramonov enables the name Formotilia to be placed. It clearly applies to the 
| luzona-group here defined and if ever validated nomenclaturally would be a synonym 
of Philippoformosia. 
INCLUDED SPECIES 
Rutilia (Chrysorutilia) luzona (Enderlein) comb. n. PutLippINes. [Holo- 
type examined]. 
R. (C.) townsendi nom. n. PHILIPPINES. [Holotype of splendida examined]. 
splendida (Townsend) [Junior secondary homonym in Rutilia]. 
Tue FORMOSA-GrRoupP 
Diacnosis. Body partly or largely metallic, golden green to blue violet; parafrontals and 
_ epistome not metallic, genal dilations partly or largely but not completely metallic. ¢ claws 
long and slender. Notopleuron normal, posterior part not exceptionally protuberant and with 
one seta. Last abdominal tergite with fine erect hairing only, hair scarcely ever differentiated 
into any definite erect setae. 
_ This group contains all the Chrysorutilia species except for those few forms from 
the Philippine Islands already discussed above; the formosa-group seems to be 
absent from the Philippines and replaced there by the atvox and luzona groups, in 
which there has been more extensive development of the bare or metallic areas of the 
head, reduction of the male claws, and the development of some definite setae among 
the hair of the last abdominal tergite (and also usually a doubling of the posterior 
notopleural seta together with some exceptional swelling of the hind part of the 
_notopleuron itself). In the formosa-group there are always only the normal two 
notopleural setae (anterior and posterior), the parafrontals are thickly pollinose, 
and the genal dilations (though partly metallic) are dull and thinly pollinose at least 
anteriorly. 
The concept of this group and of the subgenus Chrysorutilia as a whole rests 
‘nomenclaturally on the identity of Rutilia formosa Robineau-Desvoidy, of which 
| the original material is lost. When Townsend (1915) erected the genus Chrysorutilia 


