OPSIPHANES. By H. Frtjhstorfer. 309 



0. generosa Stich. ^. Nearest to 0. berecyvthin Cr. Larger, stumpier, forevving with rounder apex, generosa. 

 Grouud-folour hl;iet;-ln"own. Forewing with three small white a])ical spots and a broad, elongate, oblique 

 gold-yellow discal band, of which tlie distal boundary runs near the cell, outside it, and the ])roximal boundary 

 crosses it, so that fully one-third of^the cell is filled up with gold-yellow. The margins of the l)and, especially 

 the distal, not apprecial)ly dentate. Beneath the ground-colour beyond the cell is yellowish, strigulated and cloud- 

 ed with black-brown, gradually becoming duller, particularly in the anterior jiart. Near the apex there is 

 some whitish striation and the three small white sjjots of the upperside. Between the radials is placed a round, 

 black, yellow-ringed and blackish-Ijordered eye-spot, containing a white streak. f)istal marginal area separated 

 from the striated part of the wing by a concave ochre-yellow stripe, which is particularly brilliant poste- 

 riorly. Hindwing above unicolorous brown with the exception of the hinder angle, which is golden yellow, 

 and from which the beginning of a band liordered with didler yellow can be traced near the margin almost 

 to the upper median vein. Sexual characters as in the preceding species, but the tuft liefore the median 

 and the small pencil on the bare friction-patch at the submedian are wanting. Under svu'face yellow-brown, with 

 two blackish lines in a narrow distal marginal area. The rest of the wings striated and clouded with brown; 

 adjoining the j^recostal cell a yellow-red, dark-margined s])ot, two similar, less distinct spots in the cell. Distally 

 to these an undulated row of 6 more or less distinctly ocellated, round spots, the posterior 4 or 5 connected 

 into a sort of chain by a light bordering. The first spot, placed behind the middle of the costal margin, red- 

 yellow bordered with black, enclosing a white curved streak, the following two with indistinct pupils, the rest 

 with large black puj^ils, which are almost entirely dusted over with greenish yellow and anteriorly also more 

 or less distinctly edged by a white curved streak. BetweeJi this chain of spots and the distal marginal lines 

 whitish striation, which stands <iut from the reddish ochre-yellow groimd-colour in loosely comiectcd lunules 

 or pointed marks. Eastern Ecuador, Peru (Pebas). 



Group Selenophanes Stgi-. 



Upper and middle dis<-iH:ellulai'.s sharply right-angled. Costal and .siilico.stal narrowly hut distiiK^tly separated. The 

 latter .5-bra.nched.' Two branches l)efore the end of the cell, the fir.st at .some distan<-e proxiinally, th(^ .second just before the cell, 

 the tliird branch arising niidway between cell and apex, all three into the costal nrargin, the toiu'th arising shortly be- 

 fore the apex, running into it, followed by and forked with the fifth, ('ell long, only moderately tjroad, distally rectangu- 

 lar at both sides. Anterior disi-ocelKilar very short, middle arising at an acute angle frouL this, shortly <uu'ved and then 

 continued witliout a lireak ))y the soniewliat longer po.sterior discocellula,r. Afedian in the q inflated near to the base. One 

 species (O. crt.s.s (o/jc Cr.) beneath before the siibmeilian with a. rai.sed, mealy scent-spot, to which corresjjonds a. mealy friction- 

 ]jatch between tlie costal and subcostal on the upper.side of the hindwing. Hindwing with the apex rounded and the anal angle 

 mostly rather pointed, only in one species (O. j<ise]>lii(.i Godiii. <t' Sah\) rounded: o without manifest hair-pencils or brushes, 

 but between submedian and median with long hairs, in two .sjiecies (O. supreiiius Sfich. and josephx.i (lodm. <£■ Salv.) above the 

 .subcostal, close to the preco.stal cell, an anteriorly directed hair-tvift, covered by the hindmargin of the forewing, one species 

 (O. josephtis) with an almo.st triangvUar pilose black scent-spot between the ])o.sterior and middle medians. Precostal cell very 

 narrow, ])reco.stal vein extending considerably beyond it. Costa proxima.lly strongly lobed. Cell nari'ow and long, more than 

 halt the length of the wing. Abdomen without lateral friction-glands or protuljerances. 



a) Forewing of the (J beneath with pilose .scent-spot before the sulimedian. Hindwing with mealy friction-patch be- 

 fore the subcostal or erect hair-tuft close to the preco.stal cell. 



0. cassiope Cr. Dark brown, at the costal margin near the ajiex almost black. Oblique band of the fore- cas.siopr. 

 wing anteriorly pale, then light reddish ochreous; it runs from the costal margin oblicpiely to the hinder 

 angle, where it forms on the submedian a blunt point bent towards the hindmargin. Breadth of the band about 

 8 — 10 mm. Hindwing unicolorous, sometimes with a somewhat obscure yellowish brown band near the distal 

 margin or immediately at it. Mealy spot in the costal area grey-black. 9^ larger; mostly duller, with the 

 band of the forewing somewhat paler. The latter, however, considerably broader, up to 12 mm., posteriorly 

 more obtuse, distally more dusted and liroken, but, as in the J, nnuiing for its whole length outside the cell, 

 although with its proximal boundary tt)uching the discocellulars. Distal margin l)elow the apex narrowly dusted 

 with more or less bright yellowish, this dusting sometimes developed into a shaiiily defined band as far as 

 the middle median and then gradually shading into the brown ground-colour. Hindwing usually unicolorous 

 with dull brownish yellow distal-nuirginal dusting behind the apex. This dusting as in the forewing occasion- 

 ally consolidated into a band, but before the hinder angle gradually becoming duller and more indefinite; 

 sometimes there is also a more or less distinct Tuidulate l^and near the distal margin, about from the subcostal 

 to the upper or middle median vein (transitions to (tuiplior a,nd Cd.ssiopeia). Guiana, northern Brazil (Lower 

 Amazon). — Cassiopeia Stgr., from the tipper Amazon and Peru. (J: band of the forewmg as a rule not Cassiopeia. 

 so broad as in the jjreceding subspecies, proximally likewise filling up about one third of the cell, distally moi"e 

 regularly oblicpie. Its proxinuil bordering nu)re strongly broken, especially deeply incised at the median and in 

 the lower median cellule, the distal boundary also sometimes more broken up. $: band of the forewing of uni- 

 form breadth, a very large quadrate spot before the apex of the cell. Hindwing with distinct yellowish grey 

 marginal band, deeply incised jjroximally, and a narrow reddish yello\v submarginal band, which disappears at 

 the middle median. Under surface darker than on Staudinger's figure of the o i" Exot. Tagf. pi. 71. Hind- 



