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Show 498 LORD WALSINGHAM ON THE [NOV. 17, This genus partakes of the characters of Amorbia, Clem., and Platynota, Clem., resembling the first in the different neuration of the male and female, and the latter in the presence of a costal fold in the male. It is also allied to Cerorrhineta, Z., which agrees with Platynota in neuration, but differs in the structure of the antennas and in the shape of the fold. Zeller's type of Tortrix (CEnectra) exustana ( $ ) is before me, and it is unquestionably the female of Tortrix colubrana, Z., of which the type (o*) is also in my collection. Both specimens are from Colombia. The differences in the neuration apparently misled Zeller in supposing them to be distinct, and caused him to refer them to different genera. PTYCHAMORBIA CATENANA, sp. n. Antennae ( $ ) with the basal joint somewhat enlarged, simple ; dark reddish brown. Palpi projecting more than the length of the head beyond it; second joint smooth, somewhat thickly clothed above; apical joint moderate, exposed; reddish brown. Head and thorax reddish brown. Fore wings ( ? ) much arched at the base, straight beyond, apex somewhat produced ; apical margin indented, not oblique ; anal angle rounded. Neuration : 12 veins, 7 and 8 from a long common stem, enclosing the apex. Tawny reddish-brown with a very ill-defined basal patch, wider on the dorsal than on the costal margin; an ill-defined fasciaform shade commencing at one third from the base on the costal margin runs obliquely outwards to the middle of the wing, thence depressed to the dorsal margin scarcely beyond the middle ; on this fascia are some obscure grey metallic spots ; the apical portion of the wing is of the same darker shade as the fascia and contains two curved lines of grey metallic spots, the first running parallel with the central fascia from beyond the middle of the costa to the anal angle, the second again parallel beyond it; the space between these and the apex is also studded with similar spots ; cilia pale ochreous, with a tawy-brown line along their base. Underside unicolorous shining brownish ochreous. Hind wings much excised on the costal margin before the apex. Neuration : 8 veins, 3 and 4 from a point, 5 bent over and nearly touching the base of 4. Brownish ochreous, the apex shaded with fuscous scales ; cilia shining pale ochreous, with a brownish shade along their base. Underside unicolorous shining brownish ochreous. Abdomen ochreous. Legs ochreous ; hind tarsal joints shaded with fuscous. Exp. al. 20-28 millim. Hab. West Indies-St. Vincent (windward side, 2 specimens, Smith). Brazil-Espiritu Santo (Schmidt). Jype, o.. I have little doubt that the male of this species will be found to possess but 11 veins in the fore wings, as in T. colubrana, Z. This |