272 PERCY SLADEN TRUST EXPEDITION 



at f , whence a blue-grey line edged anteriorly with white and containing a blackish 

 dot in disc runs to tornus; three minute white dots on termen extending into cilia: 

 cilia pale greyish, with two blackish lines, each followed by an ochreous line. Hindwings 

 light grey ; cilia whitish-ochreous tinged with grey. 



Mahe\ Cascade Estate, in December; one specimen. Seemingly more allied to the 

 widely distributed peltosema Low. than to any other known species. 



Idiophantis Meyr. 



17. Idiophantis spectrata, n. sp. 



$. 15 mm. Head light fuscous, sides of crown tinged with yellow, face whitish, eyes 

 crimson. Palpi grey. Thorax light fuscous. Abdomen dark grey. Forewings elongate, 

 rather narrow, costa slightly arched, termen with deep semicircular excavation between 

 narrow pointed apical and broad rounded-obtuse tornal prominence ; 2 and 3 separate, 

 6 present ; light fuscous ; a white stria from § of costa to tornus, rounded-angulated 

 in middle, edged with dark grey and on lower half suffused with grey, margined 

 anteriorly by an orange-ochreous stria, and posteriorly on upper half by a similar 

 stria terminated beneath by a black dot; an orange streak in apical prominence: cilia 

 golden-metallic with coppery-purple reflections. Hindwings light grey, lower margin 

 of cell somewhat darker-suffused, on lower surface with a fringe of hairs along it; 

 cilia ochreous-whitish with two grey shades, round apex yellower between these. 



Mahe, Cascade Estate, about 1300 feet, in a spot with many large Pandanus 

 Hornei, in February; two specimens. 



Chaliniastis Meyr. 



18. Chaliniastis chromatica, n. sp. 



$. 10 mm. Head grey, sides ochreous-whitish. Palpi ochreous-whitish, second and 

 terminal joints each with two black bands, terminal as long as second. Thorax ferruginous 

 mixed with grey dorsally, patagia edged with whitish, Abdomen grey. Forewings 

 elongate, narrow, costa slightly arched, apex obtuse, termen faintly sinuate, oblique; 

 ferruginous, sprinkled with grey; costa suffused with dark fuscous, and marked with four 

 irregular oblicme white streaks, and two ochreous-white spots before apex; a trilobate 

 patch of ground colour on middle of dorsum edged with some black scales and then with 

 a white line; before and beyond this are curved white lines in disc, edged beneath 

 with black scales, appearing to indicate somewhat rounded patches, but not extended to 

 dorsum; a sinuate white line from penultimate costal spot to tornus; a white line along 

 termen, edged with some black scales: cilia ochreous-whitish, with a ferruginous ante- 

 median line mixed with black. Hindwings 1, apex prominent, termen sinuate; light 

 grey ; cilia ochreous-grey-whitish. 



Silhouette, forest above Mare aux Couchons in September; one specimen. 



Thiotricha Meyr. 



19. Thiotricha tenuis Wals. 



(Polyhymno (?) tenuis Wals., Trans. Ent. Soc. Lond., 1891, 96, pi. iv. 33.) 



