176 



PIEEELLA. By G. Weymer. 



maclean- H. macleannania Bates (= diaphana Btlr. & Bruce nee Luc.) (42 c), a similar, somewhat larger 



nania. species, ^\-itli the wing-expanse 72 — 80 mm., which is distinguished bj^ having the posterior half of the 

 hindwing in the $ rose-red between distal margin and submarginal stripe. In the ^ this rose-red colouring 

 is only present in the obtuse angle in the middle of the distal margin. The brown submarginal stripe is 

 mostly broader and more distinct than in fiera, the eye-spots vary in size, sometimes in the $ attaining 

 a diameter of 5 mm. The ochre-yellow dusting in the diaphanous part of the hindwing is absent. — 

 Panama and Costa Eica. 



hypaesia. 



H. hypaesia Hew. (42 c) is an easily recognized species, in which the broad dark brown submarginal 

 band of the hind-^dng is united with the hke-coloured distal margin, so that a marginal band of 4 — 7 mm. 

 in breadth is formed, in which is placed in each cell a hyahne spot. On the forewing a narrow stripe of 

 dark bro'WTi dusting runs from the discocellular to the inner margin. Above the eye-spots of the hindwing 

 are not distinguishable, beneath on the contrary distinct, one between the 2 radials, the other close beside 

 the middle median vein. Both are black with brownish yellow ring and white pupil. In many specimens 

 the submarginal band is traversed by a row of brownish yellow lunules. — Common in Colombia, Ecuador, 

 Peru and BoUvia at elevations of 1000 — 2200 m. 



helvina. 



3. Genus: Pierella Westiv. 



The shape of the foremng is similar as in the preceding genera, but that of the hindwing different. 

 The distal margin of this wing is in most species undulate, in some it is obtusely angled at the upper 

 median vein, in draconiis it is produced into a point. Although the wings are more densely scaled than 

 in Callitaera and Haetera, yet the scahng is not nearly so dense as in the following genera. The wings 

 are therefore in all the Pierella-STpecies still to a certain extent semitransparent although not altogether 

 diaphanous. The principal distinctive character of the genus is here also found in the position of the 

 lower discocellular of the hindwing. This reaches the median between the origin of the middle and that 

 of the lower median vein, thus between Mg and M,. The costal vein and the subcostal of the hindwing 

 arise separately at the base. The submedian of the forewing is furcate at the base. The (JcJ have on 

 the upperside of the hindwing in the middle of the imier margin a small oval spot, measuring 2 — 2^9™™-' 

 which is bare or covered with more deeply placed scales. In most species this spot is hght coloured, in 

 some with a dark central dot, but in astyoche it is dark brown, so that it is here easily overlooked. Only 

 in liortona is it large, 10 mm. long and 3 broad, and of a hght ochre-yellow colom-. The size of the 

 species varies between 55 and 75 mm. ■\^ing-expanse. The range of distribution extends over the whole 

 of tropical America, some species reach South Brazil in the south and Mexico in the north. 



a) With hght, dark-bordered transverse band on the under surface of both wings. 



P. nereis Brury (42 d). (J 62 mm., ? up to 72 mm. wing-expanse. Across the grey-brown, semi- 

 transparent wings runs a straight, duU white, brown-bordered band, which in the middle of the hindwing is 

 widened into a large, pure white spot. The distal half of the hindwing is red-yellow with 2 black, white- 

 centred oceUi and 3 white spots. Distal margin darker brown. The $ has 1 — 3 white dots before the 

 apex of the forewing. On the under sm'face the ground-colour is hghter, the red-yellow is clouded with 

 grey, the white band is continued in a straight hne to the inner margin of the hindwing, the brown distal 

 margin is wanting, the eye-spots are only quite small and in the basal area of each wing there is a brown, 

 shorter or longer Une. — South Brazil, Eio de Janeiro. Common. 



P. helvina Hew. (42 d) approaches the preceding species in the scheme of markings, though not in 

 the colouring. Ground-colour dark brown, light band of the forewing dusted with brownish, the brown 

 bordering broader. In the ceU there are 2 brown transverse Knes, of which the proximal one is continued 

 to the inner margin, a third short Hne is placed on the discoceUulars, before the apex a round black spot 

 in a Hght circle with 2 w^hite dots below it and one above. The basal area is brown to beyond one-third 

 the length of the wing, rather straight-margined distaUj^ Then foUow^s a large, triangular, carmine-red 

 area which extends from the costal margin nearh" to the inner margin and also near to the distal margin. 

 The latter is black- brown, at the apex with a black-eye-spot with white pupil, a white dot above it at the 

 costal margin and a similar dot below it in the red area. On the under surface the forewing is as above, 

 only Hghter. On the Hkewise Hghter hindwing in the basal area three straight, browTi, parallel lines run 

 from the costal to the inner margin. Immediately behind the third line foUows a reddish grey band, Hke- 

 wise traversing the whole wing, which in the middle is almost twice as broad as at the costal and hind- 

 margins and is bordered at the distal side by a fom-th brown Hne. Distal margin brown, the eye-spot 

 smaller than above and with ochi'e-yellow ring, one white dot before and two behind the eye. — Muzo, 

 Colombia. 



