518 ADELPHA. By H. Fruhstorfer. 



approaches again more the CIok)nibiaii vicarious type. The white band of the hinclwings still more broadened 

 than in metana, and on the forewing.s the beginning of a white hue in the submedian region being especially 

 poU'uui. distinct in a ,;J of my collection from Mato-Grosso. — pollina snbsp. nov. was recently discovered by 

 Le Moult in Cayenne. The very light zone of the forewings deeper indented at the cell-apex and the white 

 median band of the hindwings considerably naiTower than in nethalia from Colombia. Under surface similar 

 to that of frusina, but more intensely reddish-brown. 



A. euboea might above be easily mistaken with .4. aethaiin, the only thorough difference being 

 noticed in the yellowish-brown zone of the forewings greatly narrowed towards the submedian. The white 

 stripe of the hindwings is also tapering and we nearly always notice an inclination to forming a violet or blue 

 proximal boundary-line whereby a certain analogy is created to the Indian Pantoporia; a genus replaced by 

 the Adelpha in South America. The ground-colour of the under surface is a beautiful brown with bright violet 

 stripes as we meet again in .-1. ■pJtIinssa (107 a). Anatomically euboea is sharply separated from all the allies 

 by the extremely long, very sharp and much higher appendage to the valve. The valve is, besides, laterally 



fabricia. and ventrally swollen, the uncus formed like the beak of an eagle, slender with distinct point. — fabricia subsp. 

 euboea. nov. (106 d) is a form distinguishable from the name-type, euboea Fhlr., by smaller size and throughout darker 

 total colouring, fabricia has, besides, a distally sharper delimited ochreous band not showing in the anal direc- 

 tion the white hue peculiar of euboea. On the under surface the bands of fabricia are decidedly narrower. Colom- 



hilarcki. bia, without exact habitat. According to Kaye, a similar form occurs in Trinidad. — hilareia subsp. nov. has 

 a reduced more irregular yellowish-brown zone of the forewings and more intensely and beautifully coffee- 



mamaea. brown stripes ou the under surface of both the wings. Peru, Tarapoto, and from the Upper Amazon. — mamaea 

 subsp. nov. is found in Mato-Grosso. The reduction of the yellowish and white bands of the upper surface is still 

 increased as well as the darkening and reduction of all the markings on the under surface. 



A. erymanthis resemliles A. euboea and fabricia (106 d), but the white stripes of the hindwings are 

 still more reduced and terminating in the anal direction into a sharp point in the Central American type. A 

 crijiiiaitthh. very rare species of which only two forms are known to me: erymanthis Godm. and Salv. being on the forewings 

 most similar to A. boeotia (106 c), the white band of the hindwings being, however, much narrower. Under 

 adstricta. surface most approximate to that of A. aethalia (106 d). Nicaragua, Costa Rica. — adstricta .subsp. nov. The 

 light yellowish-brown zone of the forewings broader, proximally running straighter than in erymanthis. The 

 white area of the hindwings reduced to a short, extremely narrow, small band terminating at the third median 

 and, thereby, resembling A. ernestina (106 b). Colombia. Type in the Museum of Geneva. 



A. Jordan! is an entirely isolated species. Its size very much approximates the small A. boeotia 

 Fldr. with which also the position of the reddish-yellow zone agi'ees the most. The peculiarly bulging stripes 

 of the hindwings, however, distinguishes it from all the allies. Another characteristic mark is especially a black 

 spot in the anal angle of the under surface of the forewings not seen in any of the allies. Two geographically 

 jordani. separated branches: Jordan! .subsp. nov. (106 d) with remarkably broad bands on the under surface. Peru. — 

 ernestina. ernest!na subsp. nov. (106 b). As to the habitus, smaller than jordani, the ochreous median band of the fore- 

 wings very much darkened, the white median area of the hindwings shorter and narrower, but bordered in the 

 anal angle by a much broader and more distinct dark-blue zone. Under surface: white marking reduced, more 

 faded, forewings with a more extensive yellowish postdiscal region. The brown longitudinal band of the hind- 

 wing so characteristic of jordani nearly again as broad as in the Peruvian branch. Bolivia, Mapiri. Type in tlie 

 collection Fruhstorfer. A (^ some^^■hat deviating from it, from Bolivia. San-Ernesto at an altitude of 1000 m, 

 below the 68th degree of western and 15th degree of southern latitude. Collected in September 1900, in the 

 Tring-Museum *). 



A. erotia is considered to be one of the commonest species of the Continent. It is not able to offer 

 great resistance to climatic influences, so that it is divided into a number of territorial forms, and besides, it seems 

 to be subject to metagenesis, for there exist enormous specimens with large white spots beneath (perniagna) 

 beside relatively small ones being only little checkered beneath. There seems to exist also a form of condition 

 independent of time and locality with beginning or advanced white embedment at the end of the yellowish- 

 brown median band in the submedian region of the forewings. The most characteristic under surface is con- 

 spicuous by the great number of isolated silvery white spots and the purely white subbasal bands of the hind- 

 wings. According to the season and the habitat of the butterflies, the white submarginal maculae are covered 

 by reddish-brown ones (Colombia), or they increase even in size (Surinam, Cayenne) or they are faded (Vene- 

 zuela). The tegumen is most plainly shaped with the usual, rather sharp point of the uncus, valve \\\ih a 

 ddeta. roundish clunicula (with a dentiform dorsal appendage), exteriorly obtuse, nearly entirely unarmed. — deleta 

 suhsp. nov. (106 e). The yellowish longitudinal band is in the anal direction, near the submedian, brightened 

 up with white, also otherwise lighter than the following races. The three subapical maculae uncommonly strong; 



*) Clasping organs sliai'jily (liff<'i'ing from those of A. erotia. Init witliont any special marks. C'haiicnla hit;lirr Mian 

 in .1. erotia. 



