MATHANIA. By J. Rober. 77 



D. polyhymnia F/dr. (= phaenna Fnihst.) (23 b), from Colombia, is lemon-yellow above with broad pofyhymnia. y:^ 

 black margins, the discocellular of the forewing is slightly suffused with black, under surface deeper yellow 

 •u-ith broader grey-black margins, in which are placed diffuse yellow spots, rather broad grey-black dis- 

 cocellular spot and similar costal margin of the forewing, as well as ochre-yellow basal spot on the hindvving. 



D. isandra Bdv. (23 b), from Mexico, is impure white above with small grey-black distal-marginal isandra. 'f^ 

 markings on the forewing. Under surface of the hindwing light ochre-yellow with deep ochre-yellow basal 

 spot, forewing somewhat lighter, in the posterior part almost white, with grey scaling on the discocellular; 

 ? light orange-yellow. — Feuhstorfer has named the Honduras form kleta. Its S are above pale yellowish kleta. J^e 

 white, beneath either light canary- or ochre-j'ellow. 



D. fiorinda Btlr. (= chiricana Stgr^t (23 b), from Veragua and Ghiriqui, has somewhat darker yellow //orwda. ^'i^!^ 

 ground-colour than pohjhiimnia, very narrow black apical and distal-marginal markings on the forewing and 

 black marginal line on the hindwing. The under surface is deeper yellow with broader black distal margin 

 on the forewing, in which yellow spots are placed, similar black marginal band on the hindwing and black 

 discocellular on the forewing. The female has broader marginal markings and the hindwing ochre-yellow _^ 



above and beneath. — monstrosa Btlr. (= panamensis Stgr.), from Veragua and Panama, has the upper monsirosa.4^ 

 surface of the forewing white in the cf, in the ? the hindwing somewhat ochre-yellow. Larva according to 

 H. RiBCE similar to that of Gonepteryx rhamni, Hves on the calabash tree. — anceps Stgr., from Ghiriqui, anceps. J»7 

 has in the cf only a yellowish tinge at the inner angle, the hindwing otherwise white, the ? has dull yellow 

 hindwing. — chagris Stgr., from San Juan on the Rio Chagres, has the forewing white beneath with yellow chagris. ^"i 

 costal margin, the ? has larger j-ellow spots in the black distal margin of the hindwing. _ -- - , 



D. limbata Kg., from Ecuador, is white in the female, ash-grey at the base and the costal margin of the Umbata.f^j/f 

 fore%ring, the brown distal margin reaches to the anal angle, forewing with narrow ash-grey margin; under sur- ^^^ >^/ ^ 

 face white, without spots, hindwing somewhat yellowish, club of the antenna spotted with yellow, cf unknown. S. j^L>i,[*' ^^ 



D. leucanthe Fldr., from Ecuador and Colombia, differs from inaequalis Bth:, from BoHvia and leucanthe.^^^^ 

 Pei-u, bj- its larger size. In iuaeqiudis the distal margin of the forewing is straighter, the black apical margin maequahs. S 

 narrower and proximally dentate, only the fringes (not the margin also) of the hindwing are blackish. 

 cT above white, ? glossy orange, at the costal margin and in the cell of the forewing canary-yellow, beneath 

 the apical area of the forewing and the whole of the hindwing are ochre-yellow, the ? is beneath saffron-yellow. 



D. salacia Godt. (^^^ -"raastigSsS^g^^r.) (23 c, d), from Mexico, is above white with narrow black apical salacia. '*^ 

 margin on the forewing and similar marginal line on the hindwing, at the costal margin of the forewing 

 is a subapical black spot, the markings of the under surface show through somewhat. The under surface of 

 the hindwing is yellow with brown distal margin and a similarly coloured median band, which extends from the 

 costal margin to beyond the 1. median vein, becoming gradually narrower, the forewing is white, with 

 ochre-yellow basal area, a large subapical yellow spot which is bounded by the brown apical marking and 

 proximaU}' by a diffuse spot, and brown discocellular. The ? is of more compact shape, with paler ground- #x'i' 



colour above and beneath and more developed brown markings (only known to me from figures). — cubana cabana. 

 Frukst., from Cuba, is above purer white, on the under surface of the hindwing purer yellow, and has on 

 the forewing less black-brown markings in the ?, while on the other hand at the distal margin of the hind- 

 wing, especially above, they are somewhat broader. ^» 



D. idiotica Btlr. (23 c) (locality unknown), for which Butler has erected the genus Heliocliroma and idlotica. 

 which is only known to me from the figure, probably belongs in this genus (not to Hetipcrocharis). Upper 

 surface of the forewing lemon-yellow, of the hindwing orange-yellow, under surface likewise orange-yellow 

 except tor the yellow posterior part of the forewing; no markings on the under surface of the hindwing 

 except two small brownish spots at the costal margin; body blackish. 



16. Genus: Mathania Obcrth. 



This genus differs sufficiently from Pieris and JJaptonoura not only in the peculiar contour of the 

 wings but also in neuration. The 2. subcostal vein does not arise as in Ikiptonoura at the upper angle of 

 the cell, but far beyond it, not far from the apex; Mathania i\ix\h&v differs from Pierii by the subcostal being 

 only four-branched and by the precostal being curved proximad. The palpi are strikingly hairy. The butter- 

 flies have mostly a leaf-like under surface. They appear to be purely inhabitants either of the high moun- 

 tains or of districts in western South America with temperate climate. 



M. leucothea Molina. {= gayi Blanch.) (23 b), from Chile, is the most like the JJaptonoura- s-pecies. leucothea. <^/ 

 The upper surface is pure white, the under surface yellowish white with more strongly yellowish apex to 

 the forewing and more or less inconspicuous dark clouded markings on the hindwing. It is true this species 

 does not altogether agree with the others in neuration and wing-contour, but unless a separate genus is 

 erected it is probably best to place it in Mathania. It is possible that the name leucothea really covers two 

 species; my material, however, is insufficient to settle this question. 



