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Show 114 LORD WALSINGHAM ON [Jan. 19, 46. TAMARRHA, Wkr. TAMARRHA, Wkr. Cat. Lep. Ins. B. M. XXIX. 816 (1864). In my previous paper (Pr. Z. Soc. Lond. 1891, 527) I sunk the genus Tamarrha, Wkr., as a synonym of Psecadia, Hb. In this I was guided by the neuration of Tamarrha gelidella, Wkr., which is a true Psecadia. At that time I had seen only the type of Walker's other species nlvosella, which is a female. The male of this species, however, shows a strong costal tuft of diverging hairs near the base of the hind wings, which separates it at once from Psecadla. It possesses veins 7 and 8 of the fore wings from a common stem, a character which also somewhat misled me as to its affinities ; the length of the cell, however, and the general character of the neuration, together with the roughened head, seem to indicate an alliance with the Hyponomeutidce rather than with the (Eeophoridce. I would therefore revive the generic name Tamarrha, Wkr., retaining nivosella as the type. 143. TAMARRHA NIVOSELLA, Wkr. n. syn. =ADUSTELLA, Z. Tamarrha nivosella, Wkr. Cat. Lp. Ins. B. M. XXIX. 817 (1864) \ Psecadla adustella, Z. Hor. Soc, Ent. Ross. XIII. 240-(1877)2; Mschl. Ab. Senck. Nat. Ges. XV. 343, 354 (1890)3; Wlsm. Pr. Z. Soc. Lond. 1891, 528, 546 (1892)4. Psecadla nivosella, Wlsm. Pr. Z. Soc. Lond. 1891, 528, 546 (1892) 5. Hab. West Indies-CUBA (Trlng Mus.); JAMAICA.1,5 (Schaus; Kingston, 24 VII., Cockerell; Newcastle, Mus. Eagonot, " No. 750 -1894, Wlsm."); SAN DOMINGO1 , 5 ; P O R T O R I C O 2 3 4 ; TRINIDAD (Schaus). 47. EUARNE, Mschl. & Saalm. 144. EUARNE OBLIGATELLA, Mschl. Euarne obligatella, Mschl. Ab. Senck. Nat. Ges. XV. 340 354 (1890)'; Wlsm. Pr. Z. Soc. Lond. 1891, 533, 547 (1892) 2. Hab. West Indies-PORTORICO '•*. 48. TRICHOSTIBAS, Z. As nothing has been recorded of the life-history of this genus, I may remark that there are cocoons of Trichostibas fumosa, Z., the Museums of Oxford and Cambridge Universities. In the Oxford Museum is a specimen of the imago with its cocoon and pupa labelled " Amazons, from pink cocoon-Bates " (" 193.1893. Wlsm."). I am not aware that its food-plant is known, but the cocoon is so remarkable that it is worth describing, if only in the hope that collectors in the West Indies or elsewhere may breed some of the species. The cocoon is of a pinkish-red colour, and is formed of a network of stiff threads; it is almost kidney-shaped, and at the anal extremity has a produced neck. It han°-s free from a long stiff thread about an inch and a half long,& which |