AGROTIS. 



379 



whitish, the latter with blackish centre and whitish aunulus ; the 

 postmedial line strongly bent outwards below costa, excurved to 

 vein 4, then very oblique ; traces of a subterminal line ; a terminal 



Fig. 74. — Agroti-s cosfalis, (^ . {. 



series of black points. Hind wing semihyaline white ; the margiual 

 areas tinged with ochreous ; the veins and a terminal line brown ; 

 the underside Avith dark discoidal spot. 



Uah. Tristan da Cunha {Capt. CarmichaeJ), 3 d" , 1 $ type. 

 Exi^. 40 millim. 



h. Fore wing with the apex not produced and acute. 



a^. Underside of wings clothed with silky androeonia in 

 male. 

 a-. Underside of wings clothed with black androeonia in 



male tihiata. 



P. Underside of wings with the basal two-thirds clotlied 



with golden olive androeonia in male hi/pochalcis. 



663. Agrotis tibiata. 



Aqrotis tihiata, Guen. Noet. i. p. 273 (1852). 

 Ort/tosia sulmiyra, Wlk. xi. 747 (1857). 



c? . Head and thorax pale grey, sparsely irrorated with fuscous ; 

 palpi black, white at tips ; abdomen grey-black ; pectus, legs, and 

 ventral surface of abdomen deep black, with a few grey hairs, 

 the spurs and tarsi ringed with white. Fore wing pale grey 

 irrorated with black, the terminal area suffused with black ; a waved 



Fig. 75. — Ai/rofis tihiata, (^ . \. 



black subbasal line from costa to submedian fold ; an oblique rather 

 indistinct waved antemediid lino ; orbicular represented by a black 

 point ; rcniform rufous, defined by black ; postmedial line rather 

 indistinct, strongly dentate, slightly bent outwards below cost;ij, 

 excurved to vein 4, then incurved; subterminal line indistinct. 



