New or little-hnown Heterocera from Madagascar. 87 



NOCTUIDAE. 



Trachea triangulata, sp. n. Plate II. 



Head, legs, palpi, and thorax pinkish ochreous, a pale line at 

 base of collar; abdomen ochreous at base and then pinkish. Fore- 

 unng pale pinkish brown, with a conspicuous triangle having its 

 apex on inner margin, and of a dark chestnut colour; inside the 

 base of the triangle is a semicircular band of the ground-colour. 

 The triangular marking is edged with a fine pink line, and there is 

 a straight subterminal line. Hind-wing whitish ochreous, fringes 

 of both wings pinkish. Exp. 30 mm. 



Daseochaeta malgassica, sp. n. Plate IV. 

 Head, legs, palpi, and thorax apple-green with black markings, 

 antennae pale brown ; abdomen blackish with pale green tufts, the 

 last segment bright green. Fore-wing apple-green, with 7 or 8 black 

 spots on costa, a black basal patch and antemedian, median, and 

 postmedian interrupted black lines, the latter connected above 

 the inner margin by a black dash to the subterminal line, which is 

 outwardly bordered by a silvery white line; there are also black 

 dashes along the iiuier margin, and a row of black dots on the 

 hind margin. Hind-wing uniformly smoky with two transverse 

 darker striae, fringes paler. Exp. 42 mm. 



Hypoperigea minuscula, sp. n. Plate I. 



Head, legs, and palpi ochreous with a pink tinge, antennae dark 

 brown; thorax ochreous with scattered black scales; abdomen 

 ochreous with a smoky tinge. Fore-wing dark brown with ochreous 

 spots, the whole suffused with a faint purple gloss; a dark basal 

 line is followed by two ochreous blotches and then an antemedian 

 line; the postmedian line is parallel with the hind margin, and 

 between them are three ochreous blotches, besides a small one at 

 end of cell ; both inner and hind margins have ochreous patches on 

 them. Hind-wing uniformly smoky, fringes paler. Exp. 36 mm. 



Hypoperigea variegata, sp. n. Plate I. 



Head and palpi reddish ochreous ; antennae pale bi'own ; legs 

 ochreous with dark rings on tarsi; thorax whitish above, patagia 

 dark; abdomen dark ochreous paler between segments. Fore- 

 wing dark yellowish grey, with pale ochreous blotches; a whitish 

 spot at base, with indications of a dark basal line ; an interrupted 

 black antemedian line, and a curved and angulatcd postmedian 

 line ; the stigmata outlined with black, and the reniform filled with 



