10 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Tuerta hemicycla Hampson 
Tuerta hemicycla Hampson, 1904, Ann. Mag. Nat. Hist., ser. 7, vol. 14, p. 166; 
1920, Catalogue of the Lepidoptera Phalaenae in the British Museum, 
Supplement, vol. 2, p. 588, pl. 71, fig. 10 [sic]. 
Hampson described this species from a unique male from Abaco, 
Bahama Islands. He figured the type in his second treatment 
(pl. 71, fig. 11). In the text of that paper (p. 588, and on the page of 
explanation of pl. 71), he erroneously refers the name Tuerta hemicycla 
Hampson to figure 10. There is a very definite misapplication of 
names to figures 9, 10, and 11 of that plate. The figure citations for 
zenia (p. 590, fig. 11) and for insulica (p. 585, fig. 9) are also incorrect 
and should be changed. The correct assignment should be as follows: 
9. Massagidia cena, ¥ Suppl. II, p. 590 Cameroons 
10. T'werta insulica, JIE Oy, tao 15) Trinidad 
11. Tuerta hemicycla, 2, pn sib88 Bahamas 
A pair of hemicycla is now in the collection of the U.S. National 
Museum through the kindness of Ing. F. de Zayas, Habana, Cuba. 
The male is from “C. ortl. de Zapata Aguada,” Las Villas, Cuba, 
May 1956; the female from Vifiales, Pinar del Rio, Cuba, July 1955. Both 
were collected by Zayas, who has other specimens. A female collected 
on Key Largo, Florida, July 20, 1962, by H. V. Weems, Jr., has also 
been studied. The species is sexually dimorphic. Both sexes from 
Cuba and the type from Abaco, Bahamas, are illustrated in this 
paper (figs. 8-10, 19, 20). The female is described as follows: 
Slightly larger than male (length of forewing of male, 13 mm., 
that of female, 14 to 16 mm.); forewing broader, apex less acute. 
Eyes globoid, moderately large, smaller than in male, accordingly 
frons wider, white, entirely lacking long, black hairs that ornament 
frons of male. Antenna simple, filiform, rather stout, but not clubbed 
as in male. Maculation of upper surface of wings as illustrated 
(fig. 9). Ground color white, the area distad of the postmedial line 
dusted with fuscous scaling, small triangular patches of fuscous 
scales at apices of cells Mz and Cu,; some gray green in the ordinary 
spots, median part of costa, and distad of the postmedial line; all the 
transverse lines (the fine terminal line, short dentate subterminal 
line, postmedial line, and antemedial line) black; area between post- 
medial and antemedial lines from fold to inner margin metallic gray. 
Hindwing mostly yellow orange; a dark, marginal, fuscous band 
tapering toward anal angle, the band subterminal between Cuz and 
anal angle; some pale scales on apices of veins M,, Cu; and Cuz in 
the marginal band; a small indistinct fuscous discal spot present; 
terminal line fine, black in color. Maculation of lower surface of 
wings as illustrated (fig. 10); basal area of hindwing yellow orange, 
remainder of wing white or fuscous as indicated in the illustration. 
