522 
DIOPTIS. By Dr. Martin Hering. 
dentistriga. 
leucothyris. 
tessman ni. 
opaca. 
roraima. 
train i. 
angustifas- 
cia. 
cynui. 
paracyma. 
aeliana. 
cheledonis. 
proix. 
incerta. 
vnigattafa. 
meon. 
charon. 
indcntata. 
D. dentistriga sp. n. (70 a) is similar to stenothyris, the veins in the subapical band of the forewing are 
partly black, the yellow marginal stripe of the hindwing only half as broad, distally with some projecting teeth, 
cj type from the Jurimaguas in the Berlin Museum. 
D. leucothyris Btlr. is similar to the preceding, the spot behind the cross-vein about as large as that 
at the tornus. Subapical stripe black-veined. 35 mm. Amazons. 
D. tessmanni sp. n. (70 a). The white subapical band of the forewing extends posteriorly curved to 
the 2 nd cubitus, the 1 st cubitus is not broadly black. Between the subapical band and the hyaline cellular 
area scarcely lighter beyond the cross-vein. Hindwing as in the preceding. East Peru, discovered by G. Tess- 
mann. $ type in the Berlin Museum. — In opaca snhsp. n. (70 a) the subapical band is densely creamy-yellow, 
the orange band of the hindwing is more remote from the margin (1 mm). $ type from the Ucayali in the 
Berlin Museum. 
D. roraima Drc. Forewing behind the cross-vein with a hyaline band parted dark by the veins, and 
a white subapical stripe, at the tornus an angular orange stripe running anteriorly and proximally. Hindwing 
as in the preceding. 44 mm. Guiana. 
D. trailii Btlr. (— fatirna Mschlr.) (70 b) is like the preceding, without yellow marking at the tornus 
of the forewing. Venezuela, Guiana, Amazons. 
D. ailgustifascia sp. n. (70 a). Forewing as in trailii, subapical stripe broader, veins therein not black; 
in the hindwing the orange subapical stripe is only half a mm broad. $ type from Iquitos in the Berlin Museum. 
D. cyma Hbn. (70 b). Forewing with 2 or 3 yellow spots below the costal margin, being the beginning 
of the otherwise white subapical band of which only the posterior part remains white here. Otherwise altogether 
similar to the preceding. Amazons. It is reported to fly together with the similar Hypoleria cyma (Vol. V, 
pi. 41 a). 
D. paracyma Prt. is like cyma, hut in both the bands the veins are not black, except the 3rd median 
and 1 st cubitus and the space between them. Rio Madeira, Surinam. 
D. aeliana Bat. Forewing black, a longitudinal stripe in and behind the cell, a spot behind the cell 
and one at the tornus and a subapical stripe are hyaline. Hindwing reddish-brown with a narrow black border 
and traces of a black discal band. It flies together with the similar Ithomia aelia (Vol. V, pi. 37g). Amazons. 
D. cheledonis Drc. (70 b). The greater part of the forewing is hyaline, the costal margin and hind- 
margin are partly ochreous, the distal margin, a hook on the cross-vein and a transverse band behind it are 
black, the latter at the 1 st cubitus broadly connected with the distal margin, which is filled up with ochreous 
before the apex. Hindwing similar to that of the preceding. Expanse 50 mm. Ecuador. 
D. proix Prt. is similar to cheledonis , smaller (40 to 43 mm); subapical area of forewing without, hind- 
margin with but scanty red-brown irroration, the yellowish stripe at the costa is absent. The space between 
the cross-vein and transverse band is darker, the white subapical band smaller. The spot at the tornus is smaller. 
Peru. 
B. incerta sp. n. (70a). Similar to proix, but smaller; the hyaline areas less extensive, only in the 
posterior half of the cell and behind it as far as the axillaris and between the cubital branches. The subtornal 
spot is small, white like the 2 mm broad subapical band. Behind the cross-vein, an indistinct, hyaline post 
before the 3rd median. Pallene (70 a) has a steeper white band, other similar species are without the hyaline 
space between the cubital branches. Expanse 36 mm. type from the Rio Pachitea. East Peru (G. Te.ssmann). 
D. uniguttata Warr. (= quirites Drc.). Forewing hyaline, costal margin and hind-margin and veins 
black, at the apex 2 / 5 black, containing a white band extending from 73 of the costal margin to the 3rd median; 
there is a round white spot above the tornus. The anterior half of the cell and the cross-vein are black, behind 
the latter three hyaline dots the foremost of which is white. Hindwing as in the preceding. Expanse 40 mm. 
Colombia. Separated from pallene (70 a) by the whole space between the 3rd median and 1 st cubitus of the 
forewing being black. 
D. meon Or. (= beroea Mschlr.). Forewing extensively blackish-brown, hyaline are only a stripe in and 
behind the cell and a white transverse band behind the cross-vein, which extends from the radius to the 2 nd 
cubitus and is angular at the 3rd median. Hindwing with a broader blackish-brown distal margin. Guiana. 
D. charotl Drc. Forewing blackish-brown, in and behind the cell hyaline, the cross-vein and 2 nd 
cubitus black, behind it a very narrow light space, then the apical third dark with a white, 3 mm broad 
transverse band from the costal margin to the 2 nd cubitus. Hindwing with black veins and distal margin, 
containing a red-brown line as in the preceding species. Expanse 38 mm. Bolivia. 
D. indentata sp. n. (70 a) differs from charon in the 2nd cubitus of the forewing being not broadly 
black, the light area behind the cross-vein is as broad as the white band which is here 1 1 2 mm broad at most 
and proximally dentately bordered at the veins, otherwise like charon. Expanse 28 mm. type in the Berlin 
Museum from the (?) Amazon River. 
