48 
PHRUDOCENTRA. By L. B. Prout. 
discat a. 
contamina- 
ta. 
intermedia. 
trimaculata. 
condensata. 
albicoro- 
nata. 
sixola. 
abscondita. 
opaca. 
genuflexa. 
eccentrica. 
giacomellii. 
neis. 
postmedian marked with dark dots or dashes on the veins. The paler, more greyish green ground-colour is 
characteristic. Face green. Colombia: Sierra del Libane, 6000 feet. 
Ph. discata Warr. (6 b) differs from all the other known Phrudocentra in the large red-brown, black- 
centred cell-spot of the hind wing; beneath, this becomes more blackish and ill-defined, connected with traces 
of the posterior spot which is so common in the genus. Pectinations not quite so short as in senescens. Hind- 
tibia without process. Pern (type), Amazons and French Guiana. The type has the lines strongly brown, 
not indistinct and olivaceous as in the other form ( ? subspecies). 
Ph. contamirsata Prout (6 b) is best distinguished from trimaculata (6 b) by the much less (in the $ 
scarcely) bent margin of the hindwing; further by the more regularly curved antemedian line of the forewing, 
stronger black apical dot, etc. The position of the very ample purple-grey cloudings of the underside is indicated 
above by dingy suffusions. Antenna of $ scarcely serrate. Hindtibia of <3 scarcely dilated. $ larger than <$. 
S. E. Peru; also known from E. Colombia and E. Ecuador. 
Ph. intermedia Warr. (6 b), which is perhaps, as I formerly supposed, a Peruvian race of trimaculata, has 
the shape slightly less extreme than in that, the cloudings of the hindwing beneath divided into an antemedian 
and an incomplete postmedian band, with only slight suffusions between them. I believe it occurs also at Loja. 
Ph. trimaculata Warr. (6 b) is recognizable by the 3 characteristic subterminal spots of the hindwing 
above. Outer dark band of underside a little more extended than in contaminata , on the hindwing, as in that, 
confluent with dark shading which reaches almost to the base. Panama (type) and Costa Rica. 
Ph. condensata Warr. (6 b). On an average smaller, the hindwing perhaps still more sharply angled, but 
best distinguished by the underside: fore wing with the outer band not very broad, in cellule 3 constricted or 
even interrupted, behind the 2nd median without the long proximal extension which characterizes the 3 preced¬ 
ing species; hindwing with the outer band mostly green, only forming a dark spot at costa and sometimes one 
or two small spots behind the middle. Hindtibia not dilated. S. E. Peru and distributed, though rather 
sparingly, as far as Panama and Matto Grosso. 
Ph. albicoronata Prout (6 c). Close to opaca. Hindtibia of $ with a small hair-pencil which is wanting 
in that species. Vertex of head more broadly white. Forewing beneath with the outer band in the typical form 
narrower, posteriorly separated from a dark terminal line by some green maculation. Hindwing more angled, 
the postmedian band bent inward between the radials, but not or scarcely interrupted. Venezuela; also known 
from Colombia. — sixola subsp. nov. has the bands beneath broader, especially that of the forewing, which is 
quite as in opaca. Costa Rica: Sixola River (W. Schaus), the typical pair in Mus. Tring, $ antenna pectinate 
about as in opaca (6c); Guatemala: Vera Paz, a $ in Mus. Brit. Some examples from E. Colombia are similar 
or slightly intermediate towards the name-type. 
Ph. abscondita Warr. (6 c) is still nearer to opaca, possibly a race. Hindtibia (as in that species) without 
pencil. Hindwing slightly broader and more bent, more approaching the shape of albicoronata, which it further 
resembles in having the postmedian line more proximally placed and less markedly curved; beneath almost as 
green as the forewing (in condensata and opaca more whitish), antemedian band rather broad, postmedian 
scarcely darkened except in a small spot at costa (like an extreme condensata). S. E. Peru: La Oroya. Also 
C'hanchamayo and 1 Bolivia. 
Ph. opaca Butl. (6 c) has already been differentiated from albicoronata and abscondita ; from condensata, 
which is sometimes very similarly marked beneath, it differs so widely in shape that confusion should be im¬ 
possible. Dark postmedian band of hindwing beneath partially, or much oftener entirely, interrupted between 
the 2nd subcostal and 3rd radial. Described from the Brazilian Amazon; also fairly common in French Guiana 
and straggling southward in Brazil. 
P. genuflexa Warr. (6 c). Very similar to opaca. On an average rather smaller. Hindtibia of $ with a 
small hair-pencil. Postmedian line slightly more sinuous. Hindwing still more rounded, beneath with apical 
blotch enlarged but with the posterior spot of this band almost obsolete. French Guiana; also Surinam and the 
Amazon. Antenna of ^ pectinate, about as in opaca. 
Ph. eccentrica Prout. Bands beneath somewhat as in intermedia (6 b), but more clearly sepai’ated. $ 
rather small, in shape scarcely more extreme than contaminata. $ large, with the forewing even more excavated 
behind the apex than in trimaculata, the hind wing angled about as in intermedia-, remarkable for having the 
antenna pectinate with longer branches than the an extremely rare occurrence in the Lepidoptera. Paraguay 
(type) and S. E. Brazil. — giacomellii Dogn. (6 c), from N. Argentina, seems to be a rather bright green form with 
sharper white line, the sexes less discrepant in size. Perhaps more extensive material will show it a synonym. 
Ph. neis Druce (5 h) has also the $ antenna more strongly pectinate than the and further resembles 
eccentrica on the underside. Characterized above by the brown lines and by the distal maculation of the 
