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Show 1880.] LEPIDOPTERA FROM FORMOSA. 683 black; outer border rather broadly tinted with pale rose-colour; costal margin of primaries and front of thorax reddish ; head, back of thorax, and abdomen whitish : under surface creamy white, the wings tinted with straw-yellow, markings very indistinct. Expanse of wings 9 lines. One specimen. This species somewhat reminds one of the " Botys egenalis " of Lederer. 109. ASOPIA HIPPONALIS. Asopia hipponalis, Walker, Cat. Lep. Het. xvii. p. 374 (1859). One specimen of this Australian species. 110. ASOPIA? IOLEALIS. Botys iolealis, Walker, Cat. Lep. Het. xviii. p. 666 (1859). One specimen. 111. HYMENIA FASCIALIS. Phalcena-Pyralis fascialis, Cramer, Pap. Exot. iv. pl. 398. fig. O (1782). Seven specimens. STENIIDcE. 112. DlASEMIA GEOMETRALIS. Lepyrodes geometralis, Guenee, Delt. et Pyral. p. 278 (1854). Two specimens. Notwithstanding the arrangement of their spots, the form of their wings seems rather that of Diasemia thau Lepyrodes. 113. STENIA, sp. Three specimens, all far too much rubbed for description. The following species may be referred to Stenia-Cataclysta 1 elutalis of Walker, from Ceylon, and C. fraterna, Butl., from Natal, both of which are nearly allied to C. ornatalis of Europe. 114. STENIA ORNATALIS. Asopia ornatalis, Duponchel, Lep. viii. 2, p. 207, pl. 223. fig. 8. One example. H Y D R O C A M P I D C E. 115. C A T A C L Y S T A N Y M P H A , sp. n. Wings above opaline, semitransparent white: primaries with a large ovoid ochreous patch occupying the lower half of the basal area and enclosing a longitudinal stripe of the ground-colour, which is edged below with black; external two fifths bright ochreous crossed by two grey-edged slightly curved stripes of the groundcolour ; basal fifth of costal margin dark brown ; a large triangular costal brown patch at the end of the cell, crossed by opaline discocellular veinlets ; two dark-brown dashes at apex : secondaries with a |