470 HETEROCERA. 
2. Mastigophorus lygdus, sp.n. (Tab. XX XIX. figg. 1, la, 3.) 
Male. Primaries dark brown, crossed from the costal to the inner margin by two narrow slightly waved yellow 
lines—the first close to the base, the second beyond the middle,—beyond which is a very faint zigzag pale 
line, the marginal line with black points, a whitish streak at the end of the cell, the fringe dark brown ; 
secondaries pale greyish-brown, crossed below the middle by three pale brown bands: head, thorax, and 
abdomen dark brown, the antenne and legs paler brown; the palpi very long, the first joint dark brown, 
the second joint almost white, the third joint tufted with long yellowish-brown hairs. Expanse 12 inch. 
Hab. GuatTemaa, Totonicapam 8500 to 10,500 feet (Champion). 
Allied to M. mirabilis, Butl., from Jamaica, from which it may be at once distin- 
guished by having only two lines crossing the primaries. 
Three male specimens, found in the pine-woods of the Los Altos region of Guatemala. 
3. Mastigophorus antorides, sp.n. (Tab. XX XIX. figg. 2, 2a, 3.) 
Male. Primaries dark brown, crossed from the costal to the inner margin by three waved darker brown lines— 
the first close to the base, the second beyond the middle, and the third submarginal, the second line edged 
on both sides with paler brown,—a minute dot in the cell and a short streak at the end of it pale yellowish- 
brown; secondaries uniform dark brown, crossed below the middle by two fainter brown lines; the 
marginal line of both wings black and the fringe dark brown; the underside much paler in colour, that 
of the secondaries with the dark brown lines more distinct, and also with a large black dot at the end of 
the cell: head, thorax, and abdomen above dark brown, the underside and the legs pale brown; the palpi 
very long and slender, the outer side and the tuft of hairs dark brown, the inner side pale brownish- 
white ; antenne dark brown, rather deeply pectinated. The female generally paler in colour than the 
male, and with small palpi. Expanse, ¢ ?, 14; inch. 
Hab. Mexico, State of Durango (Forrer), Cuesta de Misantla (MV. Trujillo), Coatepec 
(Brooks, Schaus), Jalapa (coll. Schaus) ; Guatemata, San Gerénimo (Champion); Costa 
Rica, Volcan de Irazu 6000 to 7000 feet (Rogers). 
A common insect in Costa Rica. The large series of specimens before me show a 
considerable amount of variation in the colour and position of the markings. Our 
figure is taken from a male from Cuesta de Misantla. 
4. Mastigophorus (?) anthores, sp.n. (Tab. XXXIX. fig. 3, .) 
Male. Primaries pale brown, slightly irrorated with grey scales, crossed between the base and the end of the 
cell from the costal to the inner margin by two waved indistinct brown lines, a large oval reddish-brown 
spot at the end of the cell, beyond which a distinct dark brown line crosses the wing, a dark brown spot 
close to the apex, the marginal line black, the fringe brown ; secondaries dull brown, considerably greyer 
in colour than the primaries, crossed from the costal to the inner margin below the middle by a faint 
brown line, the marginal line black, the fringe dark brown; the underside much paler than the upper- 
side, with the lines crossing the wings very similar to those above: head, thorax, abdomen, antennz, and 
legs brown ; the palpi pale yellowish-brown on the inner side, dark brown on the outer side. Expanse 
1}; inch. 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
One male specimen. ‘This and the following three species very closely resemble the 
typical Mastigophorus in form; but they differ in having the second joint of the palpi 
in the males very much shorter. 
