no. 1601. NEHW SOUTH AMERICAN GEOMETRID MOTHS—WARREN. 99 
the bright orange of that species, the basal area and costal half of 
wing are only dull wood-brown, hardly lighter than the inner mar- 
ginal area; all the lines in the present species are more waved; the 
edges of the central fascia are finely limited by a white line, and the 
submarginal line itself is finely white. In the hind wing the lines 
and bands are almost as distinct as in the fore wing, whereas they are 
very obscure in C. ignifera, and the same applies to the under side. 
The male, judging from the single specimen examined, is still more 
somberly colored than the female, and the lines appear less wavy. 
Eaupanse of wings.—26 mm. 
Locality —One male and one female from Orizaba, Mexico. 
Type.—Cat. No. 11387, U.S.N.M. 
HYDRIOMENA LINEATA, new species. 
Fore wing—Whitish green, thickly powdered with olive scales, 
so that the whole surface appears mealy; lines black, irregular; a 
thick black line close to base; then four lines, irregularly parallel to 
each other, all angled outward above median vein, incurved below it, 
and again oblique outwards below submedian vein; of these the first 
represents the edge of basal patch, the last the inner edge of central 
fascia; the two middle ones are united at each end, outer line at two- 
thirds, oblique outward and angled on vein 6, vertical to 3, then 1n- 
curved; submarginal line parallel to it, both of those swollen at costa; 
between them an interrupted gray line and another waved and den- 
tate close before hind margin; marginal dashes black; fringe green. 
Hind wing.—Semitransparent in basal half, greenish fuscous, 
blackish toward hind margin. Under side dirty greenish gray, with 
obscure dark markings. 
Head, thorax, and abdomen pale green; palpi, patagia, metathorax, 
and dorsum marked with black. 
Haupanse of wings.—26 mm. 
Locality.—One male from Orizaba, Mexico. 
Type.—Cat. No. 113891, U.S.N.M. 
PERIZOMA CCZRULEOPICTA, new species. 
Fore wing.—Olive brown, powdered with darker fuscous and fer- 
ruginous seales from base to the outer edge of central fascia, the band 
between basal patch and fascia not paler; the fascia is edged with 
white, diffusely sprinkled with ferruginous and olive brown, not 
broadly white, as in P. emmelesiata Snellen, which otherwise the 
species much resembles; the two bottom lunules on the outer edge of 
central fascia are filled up for half the width of fascia with pale 
blue; the marginal area is varied with olive brown and ferruginous 
