Publ. 28. III. 1936. 
COSYMBIA. By L. B. Prout 
97 
line, contrasting sharply with the light yellow fringes, which bear only a few purple dots; both wings largely 
suffused with purplish, only leaving freer a band outside the postmedian, on the forewing pretty complete, 
on the hindwing only developed from about the 2nd radial hindward; markings obsolescent, consisting of 
minute white cell-spots and grey postmedian vein-dots. Para (Rev. A. M. Moss), only the type <$ known. 
C. Carolina E.D. Jones (14 f) is evidently also related to angeronaria and has some similarly rosy Carolina. 
strigulation which does not show well in the figure; the 2 principal lines are represented by dark vein-dots 
and the postmedian is accompanied proximally by a dark shade from the 3rd radial hindward. Castro, Parana, 
only the type $ known. Scarcely an aberration of the following ? 
C. arthura Schaus (as Graspedia). Collar bright red; abdomen with subdorsal roseate spots. The bright arthura. 
ochreous wings are striated with roseate, the cell-spots roseate, broadly ringed with black; a broad rosy, purple- 
mixed band between median and postmedian, somewhat mottled with ochreous at costa and radials, and con¬ 
taining a large blackish spot between the latter and the 2nd median; black postmedian vein-dots on the fore¬ 
wing. Hindwing rounded. "Looks like a Cambogia” (Schaus). 
C. stella Btlr. (= nubicolor Th.-Mieg, gosina Schaus) (14 f). A rather small and narrow-winged species, slclla. 
in coloration and markings more Scopula- like than the rest, although the white cell-spot of the hindwing 
betrays its affinities. Widely distributed (Guianas and Ecuador to S. Brazil) and not specially variable. 
C. semirosea Btlr. (12 e). Easily known in its typical form by the rosy or flesh-coloured tinge of the semirosea. 
median area of both wings. It is, however, like so many Chilian Geometiidae, decidedly variable and the 
forms which lack this differentiation of the colour of the median area resemble somewhat larger and somewhat 
less narrow-winged stella (14 f). — ab. notigera Btlr. (12 e) is a development of the more unicolorous forms, notigera. 
characterized by the presence of (somewhat variable) maculation in the distal area, after the manner of na- 
naria (12 f) or of the 2nd brood of some Palaearctic Cosymbia. Confined to Chili. 
C. umbrata Btlr. (12 f). Much more irrorated and clouded than the preceding, resembling nanaria Umbrata. 
but larger, the postmedian line accentuated by blackish teeth on the veins. Chili. 
C. nanaria Walk. (= nanularia H.-Sch.) (12 f), described by Walker from Jamaica, subsequently by nanaria. 
Herrioh-Schaeffer from Cuba, is the most widely distributed species of the group and not likely to be mis¬ 
taken for any other. What I consider to be the name-typical form belongs to the Greater Antilles and perhaps 
the Bahamas and Dominica. The series which I have seen from the last-named island shows a preponderance 
of more brownish- or red-brownish-tinged specimens, but I am not satisfied that it is really a separable race. 
serrulata Pack. (= obscura Druce) (14 g), the type of a probably superfluous genus Euephyra , may perhaps serrulata. 
prove also to be untenable racially. It is, however, on the whole a coarser, more variegated insect, on account 
of the stronger suffusion and maculation; median shade often very heavy, separated from the postmedian 
by a conspicuously pale stripe; postmedian generally, but not quite invariably, strengthened by black vein- 
dots, but not with the dentate effect observable in umbrata. Founded on Texan material and now known to 
be fairly common in the southern United States (to Kansas and California) and Central America and extending, 
with individual rather than racial variation, right away through South America to Buenos Aires. From the 
west of that continent I have seen it only from Lima and district, probably introduced, and in any case it is 
not to be expected from the mountains. 
C. subsimilis Warr., a single, faded $ from Paramba, W. Ecuador, seems to differ from coecaria (12 f) subsimilis. 
only in having the postmedian line of the forewing curved inward anteriorly (as in serrulata) and the costa 
not darkened. It might conceivably be a large, unusually weakly marked aberration of serrulata. 
C. coecaria H.-Sch. (= conspicillaria Druce nec Snell., bilinearia Schaus) (12 f). Easily known by the coecaria. 
tone, the firm lines (with the antemedian straight except close to costa, the postmedian straight in anterior 
half) and sometimes a slight darkening of the costal margin of the forewing. Herrich-Schaeffer's type was 
from Venezuela, Schaus’s from Mexico. Nicaragua, Costa Rica, Ecuador and Peru are further localities. 
C. acutaria Walk. (12 f). Colour nearly as in coecaria, hindwing generally more irrorated with grey, acutaria. 
markings weak, the lines punctiform or dentate, median shade occasionally strong. Very distinct in the 
strongly darkened costal margin of the forewing. Described from Venezuela, distributed in Colombia, Peru, 
Bolivia and S. E. Brazil. 
C. (?) impudens Warr. (12 f), from Gardner Island (Galapagos), looks a good deal like a rather brown, impudens. 
not very strongly marked nanaria , with irregularly W-shaped antemedian, but the palpus (or particularly 
its 2nd joint) is longer and its taxonomic position somewhat uncertain. Warren called it a Perixera (which 
is an Inclo-Australian section of Anisodes). 
VIII 
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