REVISIONARY CLASSIFICATION OF RUTILIINI 35 
Enderlein characterized Hega, and differentiated it from related genera, by the lack 
of median marginal setae on abdominal T3, without realizing that in the group of 
species to which the type-species (vividicingens) belongs the lack of median marginals 
on T3 is only a sexual character. The males lack such setae and the females possess 
them. The genitalia of the males, with the very heavy subquadrate surstyli, are 
of an identical kind with the male genitalia of speciosa, and confirm beyond any 
doubt that Hega is a synonym of Euamphibolia. 
The subgenus Evamp/ibolia as here re-defined is easily distinguished from the 
other subgenera of Formosia by the characters given in the accompanying sub- 
generic key. Apart from the characteristic shape of the $ surstyli (see Text-figs 
40, 52, 53), Euampmbolia is immediately and most easily distinguished from 
Pseudoformosia and Formosia s.str. by the presence of only three setae on the postalar 
callus and by the rather broad non-tapering shape of the mentum when seen in 
profile (Text-fig. 12). 
At present Euampbolia contains only a small number of species. Two of these, 
speciosa and fusca sp. n., are very distinct from the others because of their coloration, 
but as there are so few species and no really tangible structural characters on which 
they can be grouped it has not been thought useful to recognize any species-groups 
as formally defined entities. 
Very little is known of the early stages and host relations. Townsend (1936 : 152) 
has briefly described the first stage larva, and has also figured the egg and first stage 
larva under the name E. fulvipes (Townsend, 1942, plate 21, fig. 147; plate 30, fig. 
249; and plate 43, fig. 250). Two specimens have been seen of an undetermined 
species of the subgenus from Lae, in New Guinea, which have associated puparia and 
data showing that the larvae were found in a sago-palm trunk parasitizing the larvae 
of a Cetoniid beetle. Otherwise nothing is yet known. 
INCLUDED SPECIES 
Formosia (Euamphibolia) atribasis (Walker). Motuccas. [Lectotype exa- 
mined]. 
F. (E.) complicita (Walker) comb. n. Motuccas; West Irtan. [Holotype 
examined]. 
pretiosa (Snellen van Vollenhoven) syn. n. [Lectotype examined]. 
sapphirina (Walker) syn. n. [Holotype examined]. 
smaragdifera Bigot syn. n. [Lectotype examined]. 
viridicingens (Enderlein) syn. n. [Holotype examined]. 
F. (E.) engeli (Enderlein) comb.n. RuNIsLAND, Buru. [Lectotype examined]. 
F. (E.) faceta (Enderlein) comb. n. AvsTRALIA (Queensland); NEw GUINEA. 
[Holotype examined]. 
F. (E.) fusca Crosskey sp. n. SERAM. [Holotype examined]. 
F. (E.) smaragdina Malloch. AvusTRALIA (Queensland). [Holotype examined]. 
F. (E.) speciosa (Erichson). AvusTRALIA (Australian Capital Territory, New 
South Wales, Queensland, Tasmania, Victoria, Western Australia). [Lecto- 
type examined]. 
fulvipes (Guérin-Méneville) [Holotype lost}. 
