60 PIERiy. By J. Robeb. 



and indistinct marginal and sul.imarginal si)ots. Under surface with a large black median spot and two black 

 submarginal spots, as well as greenish markings at the apex of the forewing and at the distal margin, in 

 the middle and at the base of the hindwing, veins for the most part yellow. — Full-grown larva about 

 33 mm., colouring greenish white, strongly mottled or sprinkled with grey, and with a very distinct orange- 

 coloured belt between the segments, each segment with 16 — 18 pitch-black tubercles, terminating in black 

 bristles, head yellow. Pupa in general like that of proiodice, but less angular; the frons ends in an obtuse 

 projection, the head part is rounded, with uneven upper surface, the dorsal side of the thorax is dark grey- 

 brown, the elevation above the wing-cases, which jirotodice possesses, is wanting in hrdiil, tiie rest is grej', 

 on the wing-cases and the back of the first two abdominal segments almost white; a light stigniatal stripe 

 runs from the margin of the wings to the anal extremity, between thorax and abdomeu are 4 small spots 

 dorsally. Duration of the ]uipal stage 15 days. Lives on Crucifers. The fu'st generation flies in April, the 

 second from the end of June for 3-4 weeks. No differences have been found between the butterflies of the 

 two broods. 

 venosa. P. venosa Sciii/il. (19 c), from California, is white on the upper surface with the veins scaled with 



black in the anteri(U' part of the forewing and black dots at the ends of the veins on the hindwing, as well 

 as a black spot on the forewing between the '2. and 3. median veins, on the yellowish white under surface 

 all the veins are rather broadly and very darkly margined, but tiie veins themselves light. 



itoticayae. P. itaticayae Fortt. {\\)(\). from Brazil, is white on the ujjpei'side with yellow stripes between the 



veins and black apical area on the forewing and small black marginal marking on the hindwing. The under 

 surface of the forewing is white, yellow at the costal and distal margins, the hindwing is darker yellow and 

 the veins with dark margins, 



aripa. P. aripa ]'>ilr. (19 d), from \'enezuela, has yellowish white upper surface, with black apical and 



distal-marginal marking, the undei' surface is somewhat lighter with a black median spot on the hindwing, 



balidia. at the apex of the forewing the black marking of the u])per surface shows fhrdugh. — balidia Bd<\, from 



etodia. Mexico, is generally more yellow, esijccially on the underside of the hindwing, — elodia lidr., from Mexico, 



is not essentielly different. It would be most correct to unite all the three forms. P. arijid occurs from Mexico 



to Soutii Brazil, is nowhere rare and \aries somewhat. The S' have more yellowish ground-colour: probably 



clodina. balidin, whicii I only know from the figure, is an urijxi- ?. — elodina ^^tgr. i. L. from Bolivia, is larger and 



on the under surface almost pure Avhite, 



e/eusis. P. eleusis Liir. (19 d), from Colombia and Venezuela, differs from dod/a by its much more ])ointed 



forewing. broader apical and distal-marginal marking, and also by the black marking in the cell of the fore- 

 wing above. The ? has a j-ellowish up))er surface to the hindwing and broader black nmrking in the cell 



lir/rna. of the hindwing, — Helena Luc, from Ecuador, has a narrower black margin, less black dusting at the 

 costal margin and lighter, almost white, under surface. 



pylotis. P. pylotis (iodt. (19 d), from Brazil, is white above with broad black apical and distal-marginal mark- 



ing, and also a black median spot on the forewing, the hindwing has black spots at the distal margin, but 

 is, however, not infrequently entirely- white. The under surface is similar to the upper, but the distal margin 

 of the forewing is light grey, the hindwing has a black spot at the discocellular and an ochre-yellow one 

 at the base. The ? only differs by a yellowish tone on the hindwing beneath, 

 o/ympia. P. olympia F/dr. (19 e), from Venezuela, Colombia and Peru, has white ground-colour with black 



distal-marginal area and a small black median spot on the forewing, the under surface is silver-white with 

 black submarginal markings on the forewing and fine black veins on the hindwing, 



tovana. P. tovaria FIdr. (19 e), from Colombia and Venezuela, differs from nhinipia in the more normal 



di.stal-marginal area and the absence of the black median spot of the forewing. The ? lias broader, but paler 



sub- marginal markings and the hindwing is yellowish beneath, — subflavescens Kirhii, from Ecuador, has the 



flavescens. hii^d^ying yellowish beneath and the apex of the forewing sul|)hur-vellow. ~ maruga Fr/dis/., from Ecuador, 



^ ■ IS larger than foraria, with much broader black margins, the underside of the forewing darker in the cell 



gi'ia. and the stripes between the veins are sharjier. — gina Fndi.-I., from Peru, is huger than nmniiju, forewing 



more pointed, the black distal margin essentially broader, more deeply indented proximally. the base of the 



wing with less black scales, beneath the black band on the forewing broader. 



pluloma. p. philoma liar. (19 e), from the high mountain ranges of Ecuador and Peru, is white ajjove with 



very broad black margins and a white subajucal spot on the forewing. The under surface of the hindwing 



and the apex of the forewing are 'silver-while with sharp, thin black veins and stripes between the veins, 



the forewing has also the corresponding submarginal nuirking on the upper surface, 



eiithcmia. P. euthemia FIdr. (19 e), from Colombia and Venezuela, is distinguished from phi/oiiin \)\ imicli 



narrower black markings; the hindwing is white except for a narrow black nmrgin, 



penthica. P. penthica KuU. (19 e), from Colombia, is also similar to phUumn, somewhat larger, with less i)lack 



markings, the hindwing is blue in the posteiior half, the under surface of the hindwing, in addition to the 



