Publ. :13. xr. 19U. EUSELASIA. By Dr. A. Seitz. 625 



E. rasonea Schs. Similar to eiwras Hew. Wings dark brown, the distal margin of the forewings below rasonea. 

 vein 5 and the hindwings from below the apex as far as vein 2 covered with dark metal blue. Under sur- 

 face light reddish brown. On the forewing a dark subterminal shade; a distal darker band, bordered by a 

 duller brown, obliquely from the middle of the costa as far as below vein 2. Hindwing with a darker distal 

 band than the forewing, running straight through from the costal margin to vein 4, then turning more 

 distally, being undulated towards the proximal margin, followed by reddish brown internerval streaks. These 

 streaks do not reach the distal margin and terminate into pointed dots being outside shaded by white; a 

 pointed marginal band between veins 3 and 4, shaded outside by white, inside by red-brown; above this spot 

 as far as to the apex the border is broad, darker. Cucuta, Venezuela. 30 mm. 



E. phoedica Bsd. (= phedica Hew.) (121 d). Very similar to eutychus with almost the very same under phoedica. 

 sui'face; but in the q the whole anal part of the hindwings is above white with a magnificent hyacinth-blue 

 reflection. $ quite similar to that of eutychus, but more diaphanous and the brown gi-ound-colour on both 

 surfaces with a dull blue lustre. Guiana; rare. According to Hewitson also from the Amazon. 



E. orfita C?-. (121 d). Under surface with a purple median stripe being in front and behind .shaded in orfiia. 

 an iridescent whitish blue; before the middle of the border an oval eye-spot; the proximal margin of the hind- 

 wing with a purple-violet reflection. Above the 9 is earth-like brown with a faintly diaphanous marking of 

 the under sm'face, the ^ velvety black with a bluish brilliancy in the apical part of the forewings. Guiana. 

 Amazon as far as Ecuador and Bolivia. In Bolivians from the Rio Songo, the apical brilliancy of the upper 

 surface as well as the blue silvery gloss of the under surface may be absent. — euodias Hew. (121 d) has a euodias. 

 dull violet reflection on the black upper surface and a long-stretched anal part of the hindwings exhibiting 

 besides a bright purple inner margin; on the Amazon; rare. — issoria Hew. (121 d) from Ecuador stands bet- issoria. 

 ween the two preceding forms with respect to the shape of the hindwings; the purple of the inner margin of 

 the hindwing is covered here with a bright silvery blue reflection. — The species is common in Guiana. It 

 varies wherever it is found; for instance, the red-brown median stripe of the under surface in specimens from 

 Nouveau-Chantier is twice as broad as in those from St. Lamrent du Maroni. Near St. Jean, in October, there 

 fly small specimens that have hardly the size of an E. effima ; the silvery lustre is much inore expanded in Cayenne- 

 specimens than in those from Surinam etc. We do not consider it advisable to denominate all these forms. 



E. euryone. The butterflies belonging here are distributed over a very vast district. From the nor- 

 thern coast of South America they occur throughout the whole of Guiana, the Amazon district as far as Ecuador, 

 Peru and Bolivia, euryone Heiv. (121 d) was described according to a $ from Ecuador; both sexes are above euryone. 

 dark brown, beneath with 3 or 4 parallel transverse stripes through both wings; the marking of the under sur- 

 face resembles somewhat U. eutychus and the analogous species of Euptychia (Ocypete-group). $ above some- 

 what lighter brown. Specimens from Guiana are only about half as large (probably only at certain habitats, 

 such as St. Jean du Maroni in French Guiana). These specimens have beneath narrower stripes. Fassl brought 

 a form from Bolivia (Rio Songo), the (^^ of which greatly approximate the typical Ecuador-specimens, the 

 wings of which, however, exhibit a blue reflection in the basal part. In other districts of Bolivia, however, this 

 reflection is missing altogether. Bolivian $$ are mostly on both surfaces more earthy gxey, considerably lighter 

 than $9 from Ecuador. Such a specimen is figured on t. 121 e, with the erroneous subscription of ,,eurygo)ia-Q 

 U". — On the Upper Amazon flies effima Heiv. (121 e) with 9? that are hardly different from the Ecuador- effima. 

 form; the (J(J, however, have above a white anal area of the hindwiAgs, like many equally colom'ed H^sperids 

 flying together with them. 



E. melaphaea Hbn. (121 e). Beneath (9 also above) somewhat similar to euryone; but the q exhibits melaphaen. 

 above a dull red cuneiform spot of the forewing and a similar brightening in the hindwings. The red may be 

 partly or totally very much darkened, but also very bright, more yello wish -red ; the wedge of the forewing 

 may be shortened (Nouveau-Chantier, Guiana), narrowed (Upper Amazon), widened (Peru) or provided with 

 blurred edges (Bolivia); the spot of the hindwing is sometimes bright and sharply defined (Cayenne), some- 

 times shortened (Sosomoco, Colombia); sometimes also parts of the red area are covered by the black gi'ound- 

 colour breaking through (as for instance in one specimen from Peru and one from Guiana). All these forms 

 are interosculant. The 9 is always to be distinguished from the euryone-^ by the dentated border of the hind- 

 wing; it is very much rarer than the ^ (among 160 specimens only 4 9?)- Distributed all over the northern 

 part of South America, from Guiana and Para to Bolivia and Peru, locally common. 



E. ella Stgr. i. 1. (142 b) from Bolivia has almost the same under surface as melaphaea, but the parallel ella. 

 shade between the median line and the border is absent and the hindwings are not dentated. But above aU, 

 the upper smrface is one-coloured blackish brown. 



E. eulione, with which the series begins of those Euselasia exhibiting beneath instead of the tluee 

 transverse stripes only a median line and behind it, between this line and the border, a more or less distinct 

 parallel shade. — In eulione Heiv. (121 e) there is before the middle of the margin of the hindwmgs beneath a ci<Uone. 

 black oval eye-spot, above and below this there are some light transverse nooses. Above the ^ is blackish 

 brown, like cajusa from which it is also hardly distinguished in the shape of the wings; the 9 is somewhat lighter 

 coloured, larger and with rounder wings. The species is recognizable by the unciform median stripe near the 

 anal angle on the under surface of the hindwing. From the Amazon; apparently veiy local; obviously very 

 much like the following form. — hygenius Cr. which I only know from the figure, has beneath on the hmdwing hygenius. 

 V 79 



