THAMNONOMA.—PACHYDIA. 135 
the others, except at the apex,—and with several rows of minute ‘black dots between the lines, the 
marginal line with black points, the fringe dark greyish-brown; secondaries dark grey shaded with 
brown, paler from the middle to the base, their outer portion crossed by very faint lines; the underside 
greyish-brown, irrorated with darker brown scales: head, thorax, abdomen, antenne, and legs greyish- 
brown. Expanse 1,/, inch. 
Hab. Mexico, Las Vigas (coll. Schaus). 
One specimen. 
8. Thamnonoma panassa, sp.n. (Tab. LIII. fig. 23, ¢.) 
Male. Primaries very pale greyish-brown, crossed from the costal to the inner margin by two waved dark 
brown lines, each of which is edged with a yellow line on the outer side, and with a row of very indistinct: 
small dots near the outer margin and a small black dot at the end of the cell; secondaries paler in colour 
than the primaries, darker round the outer margin; the fringe greyish-brown; the underside pale brown, 
without markings: head, thorax, abdomen, and antenne pale greyish-brown. Expanse 1,4, inch. 
Hab. Mexico, Las Vigas (coll. Schaus). 
One specimen. 
4. Thamnonoma (?) cecinna, sp.n. (Tab. LIII. fig. 24, ¢.) 
Male. Primaries and secondaries pale greyish-fawn-colour ; the primaries crossed from the costal margin 
beyond the middle by a reddish-brown line, which becomes thicker on the inner margin, and with a row 
of small black dots crossing from near the apex to the inner margin and joining the brown band, a brown 
spot at the end of the cell, the marginal line with black points; the secondaries crossed about the middle 
by a faint brownish line, below which a row of minute black dots extends from the costal to the inner 
margin; the underside pale greyish brown, each wing with a submarginal row of very distinct black dots : 
head, thorax, antennz, and legs pale fawn-colour, the abdomen slightly yellowish, Expanse 1,4; inch. 
Hab. Mexico, Las Vigas (coll. Schaus). 
One specimen. 
PACHYDIA. 
Pachydia, Guenée, Sp. gén. des Lép. x. p. 187 (1857); Walker, Cat. xxii. p. 1018. 
This genus is probably confined to Tropical America, the eastern.species having been 
separated from it by recent authors. 
1. Pachydia abdominaria. 
Pachydia abdominaria, Guen. Sp. gén. des Lép. x. p. 1881; Walk. Cat. xxiii. p. 1018 °. 
Thysanopyga apicitruncaria, Herr.-Schaff. Samml. aussereur. Schmett. p. 64, fig. 536°; Corr.- 
Blatt zool.-min. Ver. Regensb. 1870 (sep. copy, p. 51) °. . 
Hab. Mexico, Jalapa, Paso de San Juan in Vera Cruz (cold. Schaus), Teapa in 
Tabasco (H. H. Smith); Guaremana, Volcan de Atitlan 2500 to 3500 feet (Champion) ; 
Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion ).—VENEZUELA 1; Ecuapbor ; 
Braziu2, Rio Janeiro; ANTILLES, Cuba+, San Domingo 2 
Some specimens of this species are much brighter than others. The locality was 
unknown to Guenée!. 
