LYONETIADiE. 
83 
Decadarchis leucopogon, n. sp. 
2 . 10 ram. Head, thorax grey slightly sprinkled white* face 
white. Palpi white mixed grey, long tuft of second joint wholly 
white. Antennae dark fuscous, two narrow separate white rings 
near base, two in middle, two near apex, and apex itself white. 
Forewings apex shortly upturned; grey sprinkled dark fuscous, 
some irregular undefined mottling of whitish suffusion, some 
brown suffusion before apex: cilia grey-whitish with bars of dark 
fuscous irroration, round apex tinged brownish within a black 
median line. Hindwings pale grey with brassy reflections; cilia 
whitish-grey. 
Malay States, Ivuala Lumpur, bred January from larvae boring 
in Brazil nuts ( Beriholletia) ( Corbett , Gciter ) ; 2 ex. (type Brit. 
Mus,,). 
Decadarchis euoplithalma, n. sp. 
3 . 11 mm. Head white, crown mixed dark grey. Palpi 
whitish, second joint dark fuscous towards base, with rough pro¬ 
jecting apical tuft beneath. Thorax white speckled grey. Pore- 
wings rather narrow ; grey speckled white, towards costa suffused 
white; about a dozen small irregularly placed black dots beneath 
costa; a supramedian obscure yellow-ochreous longitudinal line 
marked with several black dots ; a slender submedian suffused 
yellow-ochreous streak from base to termen, marked with several 
black dots ; at apex an orange spot surrounded with grey suffusion 
except above, where it is limited by a suffused whitish spot 
containing a blackish mark : cilia greyish with darker lines. Hind- 
wings grey ; cilia light grey. 
Solomon Is., Guadalcanal', bred September from larvas feeding 
on leaves of coconut ( Simmonds ), but probably on dead and dry 
portions, as usual in this group of genera; 1 ex. (Brit. Mus.). 
Allied to flavistriata but distinct. 
C0L0B0CE0SSA, n. g. 
Head with scales rather rough on crown, loosely appressed on 
face; ocelli posterior ; tongue absent. Antennae hardly |, basal 
joint moderate, without pecten. Labial palpi moderately long, curved* 
as widely divergent as possible (lateral and in the same plane'), 
second joint broadly tufted with very dense rough projecting scales, 
terminal joint as long as second, cylindrical, obtuse, lying in scales 
of second. Maxillary palpi short, slender, filiform, reflexed. 
Anterior tibise and tarsi short, stout; posterior tibiae stout, scales 
somewhat rough above. Porewings apex upturned; 2 from angle* 
3 nearly approximated, 6 to apex, 7 and 8 nearly approximated, 
11 from near base. Hindwings 1, elongate-ovate, cilia nearly | ; 
with well-developed cubital pecten ; 2-4 parallel, transverse vein 
outwards-oblique from 3 to 6, then sharply inwards, 5 and 6 rather 
approximated, 7 parallel. 
A singular form, allied to Decadarchis , but more primitive. 
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