SYMMERISTA. By Dr. M. Draitdt. 
941 
H. undilinea sp. n. (147 b) is somewhat similar to the preceding species; head and thorax yellowish-grey, undilinea. 
only the base of the collar is blackish-brown. Forewing light brownish pink, only at the costal margin narrowly 
deep blackish-brown, and more widely so below the light subcostal line from the centre of the cell to the margin, 
intermixed with lilac white and greenish-yellow scales in the anal half of the margin and in the basal third; 
the light brownish-pink subcostal stripe below the dark costal margin is bordered by a yellowish-white line 
towards the blackish-brown area, which line begins in the centre of the cell, turning at the cell-end upwards 
around a dark round convexity, whereupon it extends straightly for some distance and then forming two steps 
terminates into the apex; the postmedian line is only visible towards the light anal area in some sagittiform 
pointed arches, behind it follow black subterminal angular streaks. Hindwing greyish-brown with light reddish- 
yellow fringe. 1 $ from Chuchuras (Eastern Peru). Type in the Berlin Museum (Coll. Staudixger). 
H. schausi Dxjar (146 k) chiefly differs from the similar matheis in the purer white costal band being schausi. 
fadedly continued to the base of the wing, bending in the centre of the cell, where it leaves the costal margin, 
downwards to the base of the inner margin, where it is more intensely strewn with brown than apicad; forewing 
greyer, shaded with blackish at the base of the costal margin, in the median area and anally; white vein-dots 
are behind the quite indistinct postmedian line. French Guiana to Peru. 
H. astuta Sells. (= anica Drc .) (147 c) approximates mandela ; it has longer, lighter, more brownish asiuta. 
forewings, the costal-marginal part distinctly brownish-red, the inner-marginal part more yellowish-grey, all 
the transverse markings broken up into dots, with larger blackish spots before and behind the cell-end and 
inwards to the anal angle; the yellowish-white apical spot is very small, enclosing a black dot, the veins 
subapically are fine whitish-yellow. The larger $ is more monotonously blackish-grey, the inner marginal part 
not much lighter. Mexico to Venezuela, Peru. 
H. undulata Drc. resembles astuta ; forewing reddish-brown, the transverse lines are developed into more undulaia. 
complete fine lines, only partly divided into small spots, a larger brown postcellular spot. In contrast with 
astuta, the $ is somewhat lighter with more distinct markings. Colombia. 
H. ciilga Drc. is likewise allied to astuta, larger, darker blackish-brown, strewn with black, with a long cinga. 
light apical spot strewn with grey and extending to the centre of the costal margin, the other markings as in 
undulata, but much more indistinct, only a submarginal row of brown light spots being more distinct. Hindwing 
dark brown with light fringe. Peru. 
H. gracita Schs. Forewing grey, dusted with brown at the costal margin as far as the centre, broadly gracila. 
white behind it with light grey internerval shadows, with black double transverse lines, the posterior line broken 
up into rows of dots, with black and white dots behind them; an oblique dark streak at the cell-end and a 
white line to the light costal part which is bordered below by a triangular dark shadow; the undulate line is 
dark brown, black spots are at the anal angle; as in mandela, an oblique blackish shadow is in and below the 
cell-end. Hindwing blackish-brown, yellowish basally and at the inner margin. Expanse of wings: 39 mm. 
Guatemala. 
H. talae Berg is externally somewhat like mandela, but the species is smaller, with narrower wings, the talae. 
colour of the forewings is a much more monotonous grey, less strewn with brown, with somewhat more distinct 
transverse lines; the cell-end streak, however, is very faded, without the light bordering on both sides; the apex 
is not parted by light here, the black submarginal spots are not in light rings; the light notched undulate line is 
not shaded darker on the inside and not very prominent. Hindwing brownish-grey. Argentina. 
50. Genus: Symmerista Him. 
Very closely allied to the preceding genus, also in the scheme of markings, but the terminal joint of the 
palpus is short and the $ antenna pectinated. 
Type of genus: albifrons Abb. & Sm. 
S. albifrons Abb. ds Sm. (147 c) is a difficult species owing to the variety of its forms. The typical North- albifrons. 
American species is ash-grey, head and collar as well as mesothorax light reddish-yellow, turning whitish in front, 
mesothorax more or less brown; the forewing is strewn darker, shaded darker blackish in the median area and 
below the light apical stripe; the subbasal one of the black transverse lines is single, forming two bows, the 
anterior line is double, removed far into the middle, filled with whitish, the posterior line quite indistinct, 
shadow-like; the cell-end streak is red-brown, surrounded with light reddish-yellow; the yellowish-white costal- 
marginal stripe extends below with a small fine point to the antemedian line, being broadly dusted with lilac grey 
above it and forming, behind the cellular spot, a triangular pointed dent, which is turned downwards, and 
besides pointed distal dents on the two lowest subcostal branches; a fine black dentate line is before the distal 
margin, being almost scalariform below the centre. The whitish hindwing is smoky, darker in the $. This form 
occurs from Canada to Mexico. — f. albicosta Hbn., occurring from New York to Florida, is somewhat smaller, albicosta. 
the white costal-marginal band is broader and shorter, and terminates obtuse at the apex; it ends inwards 
not pointed on the discal fold, but broad along the antemedian line in the cell, the dent behind the cell-end spot 
ends rounded below, not pointedly triangular, the cell-end is filled with a deeper red-brown colour, and the 
