OPSIPHANES. By H. Pruhstorfee. 309 



0. generosa Stkh. 5*. Nearest to 0. herecynthia Gr. Larger, stumpier, forewing with rounder apex, generosa. 

 Gromid-colour black-brown. ForeAving with three small white apical spots and a broad, elongate, oblique 

 gold-yellow discal band, of which the distal boundary runs near the cell, outside it, and the proximal boundary 

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

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

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

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

 black, yellow-riaged and blackish-bordered eye-spot, containmg a Avhite streak. Distal marginal area separated 

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

 riorly. Hindwmg above ruiicolorous brown with the exception of the hinder angle, which is golden yellow, 

 and from wliich the beginning of a band bordered with duller yellow can be traced near the margin almost 

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

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

 two blackish Imes m a narrow distal marguaal area. The rest of the wings striated and clouded with brown; 

 adjoming the precostal cell a j^ellow-red, dark-margined spot, two similar, less distinct spots m the cell. Distally 

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

 into a sort of chain by a light bordermg. 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 pupils, which are almost entirely dusted over with greenish yellow and anteriorly also more 

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

 whitish striation, which stands out from the reddish ochre-yellow ground-colour in loosely connected lunules 

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



Group Selenophanes Stgr. 



Upper and middle discocellulars sharply right-angled. Costal and subcostal narrowly but distinctly separated. The 

 latter .5-branched. Two branches Ijefore the end of the cell, the first at some distance proximally, the second j\ist before the cell, 

 the third branch arising midway between cell and apex, all three into the costal margin, the fourth arising shortly be- 

 fore the apex, running into it, followed by and forked with the fifth. Cell long, only moderately broad, distally rectangu- 

 lar at both sides. Anterior discocellular very short, middle arising at an acute angle from this, shortly curved and then 

 continued without a break by the somewhat longer posterior discocellular. Median in the cJ inflated near to the base. One 

 species (O. cassiope Cr.) beneath before the subiuedian with a raised, mealy scent -spot, to which corresponds a mealy friction- 

 patch between the costal and subcostal on the upperside of the hindwing. Hindwing with the apex rounded and the anal angle 

 mostly rather pointed, only in one species (O. josephus Qodm. & Salv.) rounded; (J without manifest hair-pencils or brushes, 

 but between submedian and median with long hairs, in two species (O. swprewnfs <S<ic/i. and josephus Godm. & (Safe.) above the 

 subcostal, close to the precostal cell, ah anteriorly directed hair-tuft, covered by the hindmargin of the forewing, one species 

 (O. josephus) with an almost triangular jjilose black scent-spot between the posterior and middle medians. Precostal cell very 

 narrow, precostal vein extending considerably beyond it. Costa proximally strongly lobed. Cell narrow and long, more than 

 half the length of the wing. Abdomen without lateral friction-glands or protviberances. 



a) Forewing of the o beneath with pilose scent-spot before the submedian. Hindwing with mealy friction-patch be- 

 fore the subco.stal or erect hair-tuft close to the precostal cell. 



0. cassiope Cr. Dark browTi, at the costal margin near the apex almost black. Oblique band of the fore- cassiope. 

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

 angle, where it forms oit 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. $: 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 broken, but, as in the ^, running for its whole length outside the cell, 

 although with its proximal boundary touching the discocellulars. Distal margin below the apex narrowly dusted 

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

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

 with dull browTiish yellow distal-margmal dusting behind the ajiex. This dusting as in the forewing occasion- 

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

 sometimes there is also a more or less di.stinct undulate band near the distal margin, about from the subcostal 

 to the upper or middle median vein (transitions to amplior and Cassiopeia). Guiana, northern Brazil (Lower 

 Amazon). — Cassiopeia Stgr., from the Upper Amazon and Peru^_jij band of the forewing as a rule not Cassiopeia. 

 so broad as in the preceding subspecies, proximally liEewise filling up about one third of the cell, distally more 

 regularly oblique. Its proximal bordering more 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 forewmg of uni- 

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

 marginal band, deeply incised proximally, and a narrow reddish yellow submarginal band, which disappears a.t 

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



