S{S. 



Diacasana. 



Pnhl. 13. V. 19-24. Additions : DISMORPHIA. By J. Rober. 1025 



D. buchtieni Fa.s.sl. $. ., A Bolivian form of ovcc/fZwi; expanse: 55 nnii, soniewliat smaller than tlic Coloni- hiirhiieni. 

 bian $ of (ircridin. All the yellow marking above, partieularly the oblicpie median band of the forewing narrower, 

 as well as the horizontal band of the hindwing narrower and interrupted at the veins. The main difference, 

 however, is that the median band of the forewing is also above not sidplun'-eoloured, but of a magnificent 

 orange-red, together with the yellow wedge-shaped streak extcndig along the median towards the base. 

 Beneath analogous to the iipjDer surface with a narrower marking, a very prominent red median band of the 

 forewing, but less prominent silvery dots of the hindwing, the ground-colour of the hindwing not being bright 

 yellow as in the type, but more silvery grey, against which the silvery dots stand out distinctly." Coroico, Boli- 

 via, 1400 m; taken in the dense forests of the mountains ..where the diurnal lepidoptera are at any rate rare." 



(^f D. hjcosura Hew. (192 e, p. 101) we have subsequently figured the i^; the 2 is unknown to us. 

 — ecuadorensis Niep. The description runs as follows: ., Different from the figure as follows above. The t'/iiailon-u 

 white discal spot of the forewing is larger than in the type, and in the middle of the costal margin is a small, 

 white, oblong, round spot. The white colouring of the hindwing is likewise more extensive and at the cell- 

 end there are two white spots. Under surface lighter than in the figure of the tyjje, particularly on the 

 hindwing the light markings are much more extensive and whiter, in the anterior pait of the distal mar- 

 gin yellow-speckled patches between the veins. Length of forewings: 28 mm. One cj from Oriental Ecuador."' 



D. macasana Strand from Ecuador (Macas), described according to a 9> the author takes to be & 

 separate species. The specimen differs from leonora $ (29 e) by its narrower wings, the diseal spot being 

 coherent with the marginal marking, and a somewhat broader black distal margin of the forewing; the 

 under surface has more black and yellow marking than the two $$ before me from Santa Inez (Ecuador). 



D. niepelti Weym. $ (rj p. 101) is above white with a broad black apical part of the forewing, in 

 which there are 4 white spots; also the costal margin is broadly black as far as the longitudinal middle of 

 the discal cell, in this black stripe there is a small white longitudinal stripe and before this (at the end 

 of the discal cell) there are 2 small white spots. The hindwing has a broad black apical margin and its 

 posterior half is of the same colour. The inider siu'face corresponds to the upper surface, but is of a more 

 fallow colouring, at the base of the hindwing is a yellowish spot emanating in rays. 



D. ela Weym., described according to a $ from Colombia, makes the impres.sion of a gigantic $ of pin- I'l"- 

 tJiaeus, but the yellow band of the hindwing is veiy broad, sharply defined and greenish; the red band 

 of the hindwing beneath is very distinct. 



D. spio Godt. (30 a, ^). The $ l^a* a jmler (reddish-yellow) marking and the hindwing exhibits a 

 broad, ecpially coloured median band, which is also anteriorly bordered with a broad black; the subapical 

 spot of the forewing is parted. 



D. astynome paulistana Fruh-st. According to the authoi', the main difference is exhibited by the $$ pfndi.siaiia 

 showing a nuich narrower reddish-yellow cellular stripe of the forewing and a longer subapical band of yellowish 

 spots and being beneath of a paler greyish-yellow colour. Of the 5 there exist two forms, one being above 

 chiefly spotted reddish-yellow, as they also occur in Bahia, Espiritu Santo and Rio de Janeiro, and a rare 

 aberration with a yellowish median area of the forewing and a yellowish circumcellular region of the hindwing 

 (5 form donia form. nov.). Patria: Casa Branca, Sao Paulo." donia. 



D. (tstyocha Hhn. (ji. 103). Fruhstorfer regards it to be a species separated from natynome Dalm. 

 (30 c). We have therefore had it figured subsequently (192 f). 



D. mercenaria versicolora Fruhsf. ,,$ above of a peculiar yellow hued with pink. V cither whitish- nrsiculora. 

 yellow or light flesh-coloured (carnosa form. noi\). Under surface faded reddish-yellow with two broad brown 

 transverse bands. Patria: Pernambuco (Brazil)." 



D. dolorita Fassl. Only the $ is knoAvn. It differs from leicyi-'^ {= nasua Fldr., 29 e) by its smaller 

 size, almost entirely black hindwings only .showing a white .stripe in the costal part, the forewing exhibiting a 

 narrower, very ii-regularly defined black margin. The under siuface is nuich darker, the large, somewhat dull 

 silvery spots are reduced to the three foremost, the bright yellow wedge-shaped spot extends in a long 

 point towards the base, but about 5 mm before the base it disapiiears in the dark ground-colour; 3 yellow 

 basal spots are present as in lewyi; the other marking of the hindwing beneath is intensely darker and more 

 indistinct than in leicyi. The author reports: like all the allied species also dolorita is a timid insect flying 

 high up in the mountains and being fond to settle down on projecting twigs in the primeval forests, at sunny 

 places where it basks in the sun with its wings spread out. Colombia, Western Cordilleras, at altitudes of 

 ISOO to 2000 m. 



D, idae Fnssl. Above the 2 (only this is known) resembles that of w^ff/om (29 b), but the yellow median 'i'}"<: 

 band of the forewing is narrower and also at the anal margin there is between the first median vein and the sub- 

 median a band of the same colour; the black distal-marginal band of the hindwing does not extend to the apex. 

 Much more different is the under surface by the horizontal dark shades which, being connected by the veins, 

 form single yellow ovals and somewhat recall the nnich smaller theugenis (28 h) from Bolivia. Alto de 

 las Ci'uces, a little beneath the ridge of the Coloml)ian ^^'est Cordilleras. In the beginning of Januar^^ 



V 129 



carnosd. 



dolorita. 



