Publ. fl. III. 1917. ISAT'IS; PANARA. By Dr. A. Skttz. 657 



Ph. helicotlides H.-Schaff. (128 a, b). Wings hyaline with black veins and margins, the forewings heliconid «. 

 with an oblique band across the cell-end. Middle of the forehead silvery white. Imitates species of Hypoleria 

 and Ithomia, From Guiana and the Amazon. — In rufula Bm. from Ecuador the hyaline patches of the distal rufula. 

 band before the black border of the forewing are dusted in orange, and in fUfotitlcta Bat. from the Upper Amazon ruMincta. 

 the orange is noticed also at the posterior end of the hyaline patches in the hindwing. Not rare. 



27. Genus: Isapis Dbl. 



This genus contains only 1 species which, however, is very widely distributed, although it occurs spora- 

 dically. The head, is broad with very thick eyes, a flat forehead, short palpi and thick antennae ending with 

 long. and stout, fusiform clubs. The forewings are long with a round margin and a little marked anal angle. 



I. agyrtus Cr. (132 c). Black, forewing with an orange-yellow oblicjue spot; beneath a yellow transverse agyrtus. 

 band runs across the basal part of both wings as far as to the anal angle of the hindwing, where it is in 

 some $2 still to be seen round the inner margin as a small narrow, yellow inner marginal stripe on the upper 

 surface. It varies at every habitat, though not according to countries, as for instance on the Amazon there 

 occur specimens with a broad and a narrow band of the under surface, as well as in Surinam etc. Specimens 

 from Santos have a deep orange-red stripe of the forewing, turning sowewhat distallj^ at the costal margin, 

 and a moderately broad band of the under surface. We have considered this form to be sestus Stick, and figured seslm. 

 by this name, owing to the author's statement ,, Brazil, Bolivia" ; but as the author states, his sestus corresponds 

 with our figure of mithrophorus (132 c), which, however, represents a Surinam specimen. — $2 with a yellow 

 inner marginal border of the hindwing, as thcj^ are before me from Bolivia, Stichel denominates praxinus, praxinus. 

 from ,, Venezuela". — hera G. and S. (Cluatemala) forms a transitioii to falcis Weyni. (132 c) provided with a hera. 

 band of the iinder surface as thin as a thread, from Colombia, the $9 of which exhibit besides a ,,less band-like " '*'*■ 

 band of the forewing". The butterflies are very local, but not rare at their flying-places. They sit on the tips 

 of twigs -,vith their wings clapped together, and are particularly fond to do so on small bare branches, on the 

 upper surface, the antennae stretched forAvard parallel in the direction of the clearing in the woods; on being 

 chased up they fly only a few metres off. The range extends from Central America to Bolivia and South Brazil. 



28. Genus: Panara DM. 



This genus has 2 species being rather near to each other. They are black animals with an orange oblique 

 band of the forewing, as we find it also in Isapis and many other Erycinidae, whereby resemblances are pro- 

 duced with the said genus, as well as with species of Mesene, Aricoris, Chamaelimnas, Lymnas etc. The animals 

 are rather strongly built and exceptionally good flyers and also sometimes fly about in day-time, the flight 

 being somewhat like that of Heterocera, so that they are difficult to distinguish from quite a number of homo- 

 logically coloured species of Geometrids and Arctiids found at the same places. In the hindwing the cell is 

 possibly still shorter than in most of the other Eryrinidae; on the forewing the first subcostal vein branches 

 off just before the cell-end, the second directly behind it. Although the butterflies are not so local as the other 

 Erycinidae, their life-historj^ is not known. 



P. phereclus L. (I32c). Only the forewings exhibit an orange band being situated sometimes more steeply, pjiercclus. 

 sometimes more flatly, and varying at every habitat. It generally (in specimens from the Amazon) reaches almost 

 the costa and anal angle. — barsacus Ww. (132 c), with a somewhat shorter orange band, is connected with barsacus. 

 phereclus hy all transitions and ought not to have been separated. Amazon, Guiana. Some specimens, especially 

 02, have in the hindwing white or chequered fringes, being, however, quite accidental. — comes Stich. originates comes. 

 from Peru, Ecuador, and Bolivia, but does not differ constantly from the typical form, neither by the fringes 

 nor by the size, as the species varies everywhere in this respect. - — ab. lemniscata Thm. are specimens (before hmniseaia. 

 me are only $$ from Colombia) with a white oblique band of the forewing. — episatnius Prittw. (? sicora Heic.) cpisain'ms. 

 (132 d) has broad and long oblique bands reaching in some $2 the distal margin at the anal angle and running 

 straight or curved (arctitascia Btlr.). From South and. Central Brazil. All the forms may hare in the q an arcfUascia. 

 intense ultra-marine reflection beneath, more rarely also above. Not rare. 



P. thisbe F. (= iarbas W'w. nee F., perdita Hbn.) (132 d). This specie? liPS longer hindwings r-nd on ihlsbe. 

 them also an orange band forming with that of the forewing nearly a right angle. In typical specimens (generally 

 found in Guiana and North Brazil) both the orange bands are rather narrow. In soaiia Hew. (132 d) from South soana. 

 Brazil the band of the forewing is especially much broader towards the costa, the band of the hindwing slightly 

 curved. — In thymele Stich.. from South Brazil the band of the forewing lies more flatl3^ that of the hindwing ihymele. 

 is placed somewhat distally ; this is of coxirse onlj' the character of the flying-place, as specimens from different 

 habitats always exhibit differences of the bands. — ovifera /orm. nov. (132 d) from Petropolis in South Brazil ovljera. 

 exhibits the band of the forewing reduced to an ov^al; — in eclypsis form. nov. (132 d) the band of the hind- cch/psis. 



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