568 
EXOTIC MTCROLEPIDOPTERA. 
indicates real phylogenetic connection, and marks this species as an 
early form of the genus. 
AEOLARCHXS, n. g. 
Head with long dense rough hairs; ocelli posterior; tongue 
absent. Antennae |, simple, joints closely set, scape elongate, with 
pecten. Labial palpi long, curved, ascending, second joint tufted 
with long dense rough hairscales beneath, terminal joint about half 
second, thickened with loose scales, obtuse. Maxillary palpi very 
short, simple, filiform. Thorax with large dense rough crests on 
each side posteriorly. Hind tibiae clothed rough hairscales above 
and beneath. Pore wings with rough scales on surface; 2 from 
towards angle, 3 from angle, 7 to costa, 8-10 from accessory cell, 
11 from before middle. Hindwings 1, elongate-ovate, cilia §, 
2 from i, 3 from angle, 5 and 6 stalked, 7 parallel. 
Allied to Decadarchis , a primitive form. 
Aeolarchis sphenotoma, n. sp. 
c?, 14-16 mm., $ , 21-23 mm. Head whitish-grey or whitish. 
Palpi whitish-grey or whitish, more or less speckled dark grey. 
Thorax dark fuscous sprinkled whitish. Forewings elongate, costa 
gently arched, apex upturned, termen very obliquely rounded ; dark 
fuscous, or in one example grey-yellowish, variably sprinkled or 
mixed white ; an irregular white spot on costa towards base; 
a variable triangular white blotch on middle of costa, posterior edge 
irregularly toothed; sometimes the white markings are more 
extended, forming longitudinal median and dorsal stripes anteriorly, 
and irregular suffusion on terminal area : cilia white, usually closely 
irrorated dark fuscous but sometimes an apical bar only. Hind- 
wings rather dark grey ; cilia grey. 
Fiji, Tamavua and Suva, bred May and June from Pandanus 
(H. W. Simmonds ); 7 ex. (type Frit. Mus.). 
Decadarchis heliotoxa, n. sp. 
6 2 • 9-10 mm. Head white. Palpi white, a yellow streak on 
second joint. Thorax orange, a broad white median stripe. Fore¬ 
wings apical upturned ; fulvous-orange ; a yellow-whitish median 
stripe from base to middle of termen, enclosed between two 
deep orange stripes of which the lower runs to tornus, the upper 
curves down gradually beyond middle and joins apex of lower ; 
apex of wing suffused deeper orange : cilia whitish-fuscous. Hind- 
wings grey, costa silvery-white from base to middle ; cilia grey- 
whitish ; an expansible tuft of very fine long whitish hairs from 
base of costa beneath. 
Solomon Is., Tulagi, bred March, April, from larvae feeding in 
male inflorescence of Cocos nucifera (JR. A. Lever ); 9 ex. (type Brit. 
Mus.). 
