146 LEUCOTHYRIS. By B. Haensch. 



ilerdina. L. ilerdina Heiv. (38 d), from Peru, which is regarded as type of the genus Leucothyris, differs super- 



ficialty from ilerdinoides in the absence of the two vitreous spots at the end of the cell of the forewing. 



lerida. L. lerida Kirhy is similar to kena, but without the two apical vitreous spots. It flies on the Lower Napo. 



lerdina. L. lerdina Sfgr. (38 d), from Pebas on the Upper Amazon, is smaller than ilerdina. In it the two vitreous 



spots in the end of the cell and at the hinder angle of the forewing are united into a broad oblique band. 



lubilerda. L. lubilerda Hsch., from eastern Colombia, is a similarly marked species, but may be recognised at once 



by the tranparent vitreous spots, which in the other forms have a milky dusting. 



ilerda. L. ilerda Hew., also from eastern Colombia, is a form similar to ilerdina, without the vitreous spot in 



the red-brown band. 



In the following forms the red-brown subapical band of the forewing is much narrower. 



^^^'"jaiffl' ^* sexmaculata Hsch. (38 d), from the Upper Napo in Ecuador, has 6 vitreous spots in the forewing, 



namely besides the two in the cell: one at the end of the cell, one at the hinder angle and 2 smaller ones at the 



confluens. ,jistal margin. — In confluens Hsch., from the Napo, there are only 5 spots, and in lota Heiv. (38 e) only 4. 



The latter form occurs at the base of the eastern Andes in Ecuador. It has a posterior^ forked, dark oblique 



band at the end of the cell, which in conflueiis is moreover connected with the inner margin, so that in the latter 



escura. a further vitreous spot is separated off. — escura Hsch. is a darkened form of lota, without the red-brown markings 



on the upper surface, and with brown-red instead of yellow-red colour on the under surface. The whitish dusting 



praemona. of the vitreous spots is weaker. — A form nearly allied to escura, from the Upper Amazon, which I call praemona 

 form, nov., is distinguished by much broader black margins and bands. The costal and distal margins of the 

 hindwing especially are much widened and leave in the disc only a vitreous longitudinal band, which is broader 

 at the inner margin, as in epicharme (38 e). 



agarista. L. agarista Fldr. (38 e). The red-brown colour is mostly much lighter than in the figure. This form 



may be recognised by the two large, connected vitreous spots in the apex of the forewing. It flies on the upper 



janarilla. Eio Negro and the Upper Rio Napo. — janarilla Heiv. is a very similar form from eastern Ecuador and Peru, 



without the red-brown colour on the upper surface, and without the whitish dusting in the disc of the hindwing. 



priscilla. L_ priscilla Hew. (38 f) and gunilla Hew., both from the Upper Amazon (Eio Jurua, Fonte Boa), are 



two rare, brightly coloured forms, with red-brown hindwing. priscilla has a submarginal band in addition to 

 the dark distal margin on the hindwing. In gunilla only the commencement of this band is present in the apex. 

 priscilla has in the dark brown forewing 4 vitreous spots and a basal triangle; m gunilla the vitreous spot at the 

 hinder angle is wanting, the basal area is more extended and of a red-brown colour. 



tigilla. L. tigilla Weym. (38 e) is a larger species from eastern Ecuador of similar appearance to lota, but without 



the fork of the oblique band and with broader wings. 



assimilis. L. assimilis Hsch. is a vevy similar species from the same district, somewhat smaller, without the white 



spot at the costal margin and end of the cell of the forewing. The markings of the two forms also differ somewhat 

 in other details. But they may be recognised especially by the neuration. The middle discocellular of the hindwing 

 is considerabl}^ larger in assi77iilis, and the cell is consequently much larger. 



zelica. L. zelica Heio. (38 f), from the western Andes of Ecuador, may be recognised by the j^ellowish colour 



of both wings. The pattern of the otherwise blackish apical half of the forewing consists of two subapical 'dots 



and two larger whitish spots at the end of the cell and the hinder angle. The hindwing is very broadly margined 



pagasa. with black. — A similar form is pagasa Druce, from Panama and Costa Rica. The hindwing is hke that of zelica, 



but the forewing has a broad band through the cell. The subapical spots are larger. 



aegle. L. aegle F. (= hippodamia Hew.) (38 f). The wings are almost diaphanous with dark margins. In the 



forewing some oblique bands divide the vitreous area into a number of spots, namely besides the two in the cell: 

 one each at the end of the cell and the hinder angle, as well as 2 smaller ones and 1- — 2 dots at the distal margin. 

 A red-brown stripe traverses the distal margin of the hindwing. The species flies with the similar following form 

 zarepha. in Guiana. — zarepha Heic. (38 f) has at the end of the cell of the forewing a band-like row of spots to the hinder 

 angle and 2 vitreous spots in the apex. On the under surface the white marginal dots are absent. Guiana. 



dolabella. L. dolabella Hew. (38 e), from Bohvia, has a broad, white oblique band at the end of the cell of the 



forewing and a double spot at the apex; across the cell runs an incomplete, dark obUque band. The vitreous 



brisolis. spots and the disc of the hindwing are dusted with white. — As brisotis form. nov. I designate another form, likewise 



from Bolivia, with narrow white oblique band on the forewing, especially at the end of the cell. The dark distal 



margin of the hindwing is strongly widened proximally. 



