[PERICOPIS. By Dr. M. Hering. 
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the axillaris. Hinclwing as in isse, but more red-brown. Abdomen beneath dusted somewhat blackish. Colombia. 
It was denominated in honour of E. Study, the well-known mimicry-explorer. $ type in the Berlin Museum. 
P. histrio Fldr. (62 e). Ground-colour of the wings brown, the forewing basally with 5 or 6 black histrio. 
longitudinal stripes, a black spot at the cell-end, opposite which a similar one is at the costa, 2 or 3 black spots 
between the 2nd cubitus and the 3rd median branch; apical part black, with a marginal line of yellow and 
white spots. At the costa a yellow spot and a yellow band of a variable extent. Hindwing on two thirds of 
the costa, in the cell, distal margin and proximal margin black, with yellow or brown submarginal spots. Fringes 
at the apex white. Amazon River. —- In the form eugenia Drc. (62 e) the yellow band of the forewing is absent, eugenia. 
and its apical part is much narrower black. P. histrio copies Heliconius euphone Fldr. and Lycorea ceres Cr. 
(Vol. V, t. 31 c). 
P. hydra Btlr. (62 e) is cjuite similar to histrio, but larger, the apical part of the forewing is broader hydra. 
black, at the apex there are no light spots. Hindwing black, with a brown costal spot before the apex and 
small yellow submarginal spots. Fringes at the apex white. Ecuador, Peru. — histriomorpha form. nov. has histriomor- 
hindwings entirely resembling those of histrio, but the black margin of the hindwing is narrower. $ type from ^ha. 
Zamora in the Tring-Museum. —- P. hydra copies Heliconius aristiona Hew. and messene Fldr. (Vol. V, t. 73 d). 
P. felderi Bsd. (62 f). Forewing black, at the base extensively red-brown, so that only a basal wedge felderi. 
in the cell, and the proximal margin remain black. Across the cell-end a band of 2 hyaline spots to which 
a bent brown spot is joined. A postdiscal and a submarginal row of spots are likewise whitish-hyaline. 
Hindwing reel-brown, with a black margin, which exhibits a series of white submarginal spots. Colombia. 
P. salvini Fldr. Base of forewing red-brown, black longitudinal stripes on the veins and in the cell, salvini. 
the rest of the wing being blackish, with red-brown traces. A yellow costal spot in two thirds of the cell, a similar 
one right behind it, extending to the 3rd median vein, behind it continued by two yellow dots, a submarginal 
row of white spots. Hindwing red-brown, the costa and distal margin broadly black, the submarginal row of 
spots and a spot at the apax white. Panama. 
2. Abdomen in the $ (sometimes also in the rj) above uni-coloured, mostly a distinct sexual difference in the colouring, 
y often with hyaline places on the forewing. Costa at the base not with a conspicuous light streak ( Tliebrone Bsd.). 
P. tricolora Sulz. (— turbida Wkr., aglaura Cr.) (62 d, e). Body blackish-brown, abdomen beneath tricolora. 
in the $ entirely pale yellow, in the $ partly pale yellow at most; dorsum of abdomen in the B varying from 
yellow to a bluish grey, with a black dorsal line. Base of collar and of patagia in the $ (very rarely in the $) 
with yellow spots, $ on the mesothorax sometimes with a whitish spot. Forewing blackish-brown, with 
hyaline places. Hindwing in the B whitish hyaline, the costa, distal margin and transverse vein broad black, 
at the anal angle traces or spots; in the $ at the anal angle a red band extending to the 1st cubitus, distally 
to the cell a yellow spot, otherwise the hindwing blackish-brown. The races are distinctly ascertainable only 
by the $. The typical form from Guiana, the Amazons and East Peru has in the hindwing the anal band pink, 
more or less distinctly broken up into single spots; the hyaline bands of the forewing are indistinct. The B 
has almost invariably whitish hindwings, without red spots at the anal angle. — jansonis Btlr., from Panama, jansonis. 
Colombia, Venezuela, generally has shorter and broader wings, in the $ the brick-red band of the hindwing 
is uniform behind the 2nd cubitus, not broken up into spots. The bands of the forewing exhibit a yellow or 
brownish tinge and are more distinct. In the B there are often red spots at the anal angle of the hindwing. — 
The B form flavopennis Rbl. has yellow instead of white hindwings. — The Colombian $$ mostly exhibit fiavopennis 
yet in the cell some yellow scales, thus forming the transition to the form salome Drc. (= albisarta Prout ) salome. 
(63 a) from Ecuador and Bolivia. Here there is also proximally to the transverse vein another yellow spot. 
— In South Brazil flies lunifera Btlr. ; in the $ forewing only the apical band is hyaline, hindwing with a short lunifera. 
anal band and a large yellow spot of 5 mm diameter, which is not parted by black veins. 
P. nigriventralis Dgn. (63 a). B similar to that of tricolora, in the forewing the cliscal band and subapical nigriventra- 
bancl are fused behind the cell; hindwing with a broader border containing white submarginal dots and before 
it a series of rust-brown indistinct spots. Collar and patagia darker. The yellow under surface of the abdomen 
with a black longitudinal line. $ unknown. Upper Amazon River. 
P. hypoxantha Hbn. (= sibylla Btlr.) (63 a). B similar to jansonis, hindwing yellowish to red-brown hypoxan- 
hyaline, with a submarginal row of white spots, before them sometimes rust-brown spots. Transverse vein tha. 
narrow black, in front broader at most. Base of wings without the red spots exhibited in the preceding species. 
In the forewing the discal band and subapical band are at least connected above. Colombia, Venezuela, Brazil, 
Bolivia, Peru. 
P. thyridina Btlr. (= unxia Drc.) (62 d). B similar to hypoxantha, the margin of the hindwing above thyridina. 
and beneath without the rust-brown marking, the discal area paler yellow, collar and patagia with smaller 
yellow spots. Ecuador, East Peru and Bolivia. 
P. nigrivenata sp. n. (62 c). B similar to the preceding, hindwing with black veins, also the cell longi- nigrivenata. 
tudinally parted by black lines. Forewing without white submarginal spots, all the black markings, particularly 
beneath, with rust-brown patches. Collar and patagia as in hypoxantha. Ecuador, B type in the Berlin Museum. 
