276 PERCY SLADEN TRUST EXPEDITION 



of veins 7 of forewings and 6 of hindwings, and not known at present except from the 

 Mascarene Islands. It appears to be probably allied to the considerable Indo-Malayan 

 genus Autosticha, in which however vein 6 of hindwings is present as usual. The other 

 described genera of the group are Chanystis described below ; and Ancylometis Meyr., 

 which contains two species from Mauritius and Reunion ; the third species attributed to 

 it, viz. astrapias Meyr., is properly referred to Metachanda, and is also from Mauritius. 

 In my description of Ancylometis vein 6 of hindwings is wrongly stated to be present, 

 as I mistook the submedian fold for it ; otherwise the characters are correctly given, 

 Ancylometis being distinguished from Metachanda by the presence of vein 5 of hindwings; 

 it is therefore the most primitive of the three genera. I have three other genera from 

 Mauritius. 



29. Metachanda trixantha, n. sp. 



$%. 9 — 1 1 mm. Head and thorax ochreous-yellow, shoulders dark fuscous. Palpi 

 ochreous-yellow, second joint with dark fuscous subapical ring. Abdomen grey, anal 

 tuft whitish-ochreous. Forewings elongate, rather narrow, costa gently arched, apex 

 obtuse, termen very obliquely rounded ; orange-yellow ; markings dark purplish-fuscous 

 edged with black irroration ; a small elongate spot on base of costa ; moderately broad 

 fascise at \ and § , somewhat dilated on margins ; an apical patch or terminal fascia 

 narrowed beneath, not reaching tornus : cilia dark purplish-fuscous. Hindwings and 

 cilia grey. 



Silhouette, Mare aux Cochons plateau, 1000 feet ; Mahe, Morne Seychellois 

 (1500 feet) and Cascade Estate ; in September, and from December to February, 

 twenty -four specimens. 



30. Metachanda columnata, n. sp. 



$%. 9 — 10 mm. Head pale yellowish, sides of crown dark fuscous. Palpi yellow- 

 whitish, towards base sprinkled with dark fuscous. Thorax pale yellow, anterior margin 

 dark fuscous. Abdomen ochreous-whitish. Forewings elongate, rather narrow, costa 

 gently arched, apex obtuse, termen rounded, rather strongly oblique ; pale yellow ; 

 markings purplish-fuscous irrorated with black ; a spot on base of costa ; a narrow fascia 

 from f of costa to dorsum before tornus, more or less obsolete towards costa : cilia pale 

 yellowish. Hindwings and cilia ochreous-whitish. 



Silhouette, south side of Mont Pot-a-eau, 1500 feet, in August; three specimens. 



31. Metachanda hydremia, n. sp. 



$. 12 mm. Head whitish, crown with a fuscous central patch. Palpi white, 

 posteriorly blackish. Thorax whitish, with a dark fuscous stripe on each side. Abdomen 

 grey. Forewings elongate, narrow, costa slightly arched, apex obtuse, termen very 

 obliquely rounded ; blackish-fuscous ; veins marked with irregular-edged ochreous-white 

 lines ; an ochreous-white line along dorsum and termen : cilia whitish, with dark fuscous 

 basal shade. Hindwings rather dark grey ; cilia grey. 



Silhouette, Mare aux Cochons plateau, in September ; one specimen. 



