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Show 56 MR. A. G. BUTLER ON THE GENUS DANAIS. [Jan. 23, 50. DANAIS CENONE (D. VITRINA, Felder?). Male. Upperside-wings hyaline, the same form as in D. cleona, 6*; nervures, end of front-wing cell, and margins black ; hind margins broadly black. Front wings, basal area divided by the nervures into four parts ; subapical patch in three parts; three costal and seven submarginal spots. Hind wings with a large basal area, divided by the nervures into twelve unequal parts ; a doulile series of submarginal brown spots, two or three of which are pupillated with white at the apex and anal angle. Body-thorax black, with creamy spots ; abdomen white, with a dorsal black line. Underside-front wings with a submarginal row of fourteen minute white spots in couples along the hind margin; otherwise as above. Hind wings with a double submarginal row of white, not brown, spots; otherwise as above. Body-thorax black, with numerous creamy spots; abdomen white. Expanse of wings 2-^- inches. $ . D. cenone, A. G. Butler, P. Z. S. 1865, p. 433, pi. xxv. f. 6. Hab. Philippine Islands. B.M. Note.-\t has been suggested to m e that I was wrong in describing this species, on the score of its being "nothing more than D. albata;''' but when the two insects are placed side by side, I think that few entomologists would deny that they are very distinct. The hind-wing cell in D. albata is much broader, the fore wing more convex in front, the wings not so transparent, the marginal and subapical spots much larger and more numerous, the hind-wing disk almost entirely suffused with brown, the submarginal spots all white: considering these points of distinction, as well as the difference of locality, I think I should be scarcely justified in sinking m y species into a synonym of D. albata. It may, however, be identical with D. vitrina of Felder ; but it is almost impossible to recognize such closely allied species without figures. 51. DANAIS VITRINA. Danais vitrina, S, Felder, Wien. Entom. Monatsschr. p. 300. n. 10 (1861). Hub. Philippine Islands. B.M. 52. DANAIS GLORIOLA, sp. n. (PI. IV. figs. 3, 4.) Male. Upperside-wings the same form as in D. cleona, <$, bright transparent yellow, increasing in intensity towards the base ; nervures black. Front wings, anterior margin, base, upper half of cell, apex, hind margin, inner margin from the anal augle to the middle of the third median branch, and an irregular oblique band from the end of the cell to near the middle of the hind margin black brown ; a very indistinct series of minute submarginal white dots. Hind wings, base brown ; basal area divided into ten unequal parts ; outer margin broadly brown. Body, head, and prothorax black, spotted with white; the rest of the body brown. Underside-front wings, submarginal series of spots more distinct |