294 PERCY SLADEN TRUST EXPEDITION 



Hieroxestis Meyr. 



In its normal forms this genus closely approaches Opogona in structure, and is 

 evidently the direct progenitor of that genus, differing from it only by the tuft or fringe 

 of rough hairs which rises from behind the fillet and projects over it, leaving the face, 

 fillet, and back of crown quite smooth. The neuration exhibits a deceptive tendency to 

 partial obsolescence, several of the veins (especially 2 — 4 and 1 1 of forewings, and 6 of 

 hindwings) being liable to almost complete disappearance, though a very faint trace or 

 impression is barely perceptible; stress cannot be laid on this, the extent of obsolescence 

 varying individually and specifically. 



79. Hieroxestis Jlorea, n. sp. 



$$. 6 — 7 mm. Crown dark purple-fuscous, face and fillet ochreous-whitish. Palpi 

 whitish, externally with a dark fuscous lateral line. Antennae ochreous-whitish, suffused 

 above with dark fuscous towards base. Thorax dark purple-fuscous, posterior extremity 

 yellow. Abdomen grey, apex whitish. Forewings lanceolate, acute, apex somewhat 

 twisted and bent upwards; deep orange-yellow; a wedgeshaped dark fuscous spot occu- 

 pying basal sixth of costa; a rather broad deep indigo-blue transverse fascia beyond 

 middle, anterior edge convex; posterior edge suffused with blackish, confluent with a 

 black streak along upper part of termen to apex : cilia light purplish-grey, with a slender 

 blackish bar at apex. Hindwings grey; cilia pale greyish. 



Mahe, Cascade Estate, 1000 feet, in February; six specimens. 



80. Hieroxestis cyanodesma, n. sp. 



$. 8 mm. Head and thorax orange-ochreous, forehead and face shining whitish. 

 Palpi whitish, second joint dark fuscous externally. Antennae 1. Abdomen ochreous- 

 whitish. Forewings elongate-lanceolate, apex produced, acute, upturned; orange-yellow; 

 a dark leaden-grey transverse line near base, interrupted beneath costa; narrow rather 

 oblique dark shining blue-grey fasciae at f and f : cilia yellow-whitish, round apex 

 ochreous-yellow except at tips, with a black subapical line. Hindwings grey-whitish; 

 cilia whitish-ochreous. 



Silhouette, Mare aux Cochons plateau, 1000 feet, in September; one specimen. 



81. Hieroxestis selacta, n. sp. 



$, 10 — 11 mm. Head shining greyish-bronze, tuft reduced to a short fringe, face 

 and fillet shining whitish. Palpi grey, internally whitish. Thorax shining olive-bronze. 

 Abdomen pale bronzy-grey, apex ochreous-whitish. Foi'ewings elongate-lanceolate, apex 

 produced, acute, turned downwards; shining olive-bronze, with prismatic reflections; 

 a small spot of grey- whitish suffusion at base of costa; apical half beyond a straight 

 oblique fine line of dark fuscous scales running from before f of costa to f of dorsum 

 shining silvery- whitish, containing patches of bronzy-grey suffusion on costa at -f, towards 

 tornus, and towards apex; a black line along posterior fourth of costa into apex, 

 interrupted towards apex: cilia whitish, above apex with a blackish line near base, 

 forming a short apical hook. Hindwings grey; cilia pale greyish. 



Mahe\ Cascade Estate, 1000 feet; Silhouette, Mare aux Cochons plateau, 1000 feet; 

 in February and September; two specimens. 



