OPSIPHANES. iiy H. Fruhstorfkk. 303 



the distal boundary of the distinetly forked l)and little or not at all constricted. In the 5? the proximal forked 

 part is mostly obsolete in the cell, the colour of the cell itself ferruginous. Hindwiiig only in the anterior 

 part with ill-defmed submarginal band, this fades out between the radials, changing into rust-brown and grey- 

 red, and this colour spreads over almost the whole surface of the wing, starting from the anal part. The form 

 recurs inCIolombia and western Ecuador with trifling modifications, the i;^^ are on an average somewhat larger 

 and more brightly coloured, without, however, any specific distinguishing marks Ijeing recognizable. The dis- 

 trilnition of 0. c. jabricii may tiierefore be accejited as given above. — chiriquensis Slich. seems to occur chirit/uen- 

 exciusively at theVolcan de Chiri(jui, Costa Rica. Of considerable size, q with the a])ex rather pointed and the '"''''• 

 distal margin of the forewing strongly convex posteriorly. Band of the latter very broad throughout, bright rust- 

 yellow, distal l)ouiidary but little constricted, in this respect almost agreeing with fdhricii. Fork distinct, prox- 

 imal part broad in the cell, narrowly connected with the main band. Costal margin of the hindwing broadly 

 reddish to the upper radial, jiarticularly at the base and at the apex. Band of the hindwing very broad, broader 

 than in an_\ other form of the species, anteriorly red-yellow, in the middle changing into rust-red, towards the 

 hinder angle widened, without becoming diffuse. Under surface especially bright. $ very dark bi'own, band 

 of the forewing broadly yellowish, fork distinct. Hindwing near the distal margin with broad band, which 

 is anteriorly yellowish, then widened and rust-red, in the anal area broadly diffuse, as in invirae. arivpUfimtus. 

 — numatius suhsp. nov., from Colombia without more exact locality, approaches chiriquensis in size, but in the numalius. 

 shape of the bands more resembles the more soiitherly notandus, differing, however, from both in having the prox- 

 imal cell-spot of the forewing free and unusually elevated at its distal end. Band of the hindwing much as 

 in the broad-banded fnbricii, biit posteriorly darker rust-red. The under surface also much deeper, darker 

 brown; apical eye-spot of the hindwing more broadly and distinctly ringed with brown than in fnbricii. ■ — 

 periphetes subsp. nov., which may be distinguished from nnm.atius by its smaJl size, approaches meriamie from pcriphdoi. 

 Surinam in this as well as in the strikingly narrowed .submarginal band of the hindwing, which sometimes dis- 

 appears altogether at the upper median. It also agrees with merianne in having the ochreous transverse band 

 of the forewing considerably narrowed towards both the costal margin and the anal angle. Colombia; more 

 exact locality unknown. — cassina Fhlr., type in the Tring Museum, was firsst brought to Europe from the Upper casulna. 

 Rio Negro, o comparatively large, length of the forewing 42 mm. Band of the forewing broad, about as in 

 0. quiteria ineridionalis iStgr., also resembling this in the shape, i. e. distal border without constriction, regularly 

 oblicpie, directed towards the inner angle. Proximal part of the fork formed by the discocellular obscure and 

 present as an isolated s]X)t. The band of the hindwing rather broad next to the apex, gradually narrowing and 

 changing into a rust-red colour, vaguely diffused at the anal angle. — mtrianac Slich. is the form indigenous "icrianae. 

 to Guiana, with distinctly forked band, the (J with very pointed apex and strongly convex distal margin to 

 the forewing. This form may be easily and certainly distinguished from all others by the shape of the forked 

 oblique band of the forewing. At the fork the band as a rule ])roj(!Cts proximad as far as the angle at the oi'igin 

 of the middle median, its distal boundary is strongly constricted between the middle and upper medians, and it 

 runs into the inner angle essentially narrowed, pointed and somewhat curved. The constriction at the distal 

 boundary and the narrowing behind this constriction are quite characteristic. The submarginal band of the 

 hindwing is moderately narrow, sometimes complete, sometimes I'eaching only to one-half or beyond it; 

 as a rule it becomes darker brown towards the anal angle, but not rust-red. '^ similar to that of the pre- 

 ceding form, but smaller, less intensively coloured, the submarginal band of the hindwing not widened in the 

 anal part to the same extent as in that, and not much diffused. — aequatorialis Stich.. from eastern Ecuador, aequato- 

 iSimilar to the preceding. Forewing with the fork of the band incomplete, the spot placed in the cell, however, '"'"'*• 

 is connected posteriorly with the proximally projecting tooth of the main part of the band, only separated by 

 the median. The distal boundary of the band is not essentially constricted, and is as in cassina cassina. The 

 band of the hindwing starts close to the apex as a continuous row of ochre-yellow spots, terminates at the 

 upper median vein, there changing to deep rust-red but not diffused ; it remains in its whole course approxi- 

 mately uniforndy narrow, its posterior part is occasionally blun-ed. 5 with the oblicpie band of the fore- 

 wing bone-yellow, in the anterior jiart cpiite white. The part of the fork placed in the cell is always incomplete 

 and indistinct. Band of the hindwing anteriorly ochre-yellow near the distal margin, changing at the upper 

 median vein into a deep rust-red or nd-browii colour; in the hinder angle this s])reads out anteriorly as far 

 as the cell. — notandus <S7/(7;. Similar to the iireceding subspecies, mostly still larger and more brightly noUuidwi. 

 coloured. ^ ■ niam part of the band of the fore%ving somewhat narrowed distally to the cell, broken, with long 

 teeth on the veins. Hindwing less relieved with reddish at the costal margin, a stripe before the entire length 

 of the subcostal always brown. The band tow'ards the distal margin rather broad, anteriorly paler, posteriorly 

 bright red-brown. $: resembling that of aequatorialis, the fork in the band of the forewing somewhat narrower, 

 the branch placed in the cell broader and more complete, the distal boundary of the main part more distinctly 

 notched at the veins, the band on the whole somewhat broader, so that the angle at the origin of the upjjei 

 median veiiT is entirely filled up (as far as available material indicates). Peru. For the sake of clearness I here 

 recapitidate the range of these three difficult sjiecies. which occur together in the following forms: 



