PIEEIS. 129 



The subcostal nervure of P. calydonia emits two branches before the end of the cell 

 and one close to the apex, the upper radial meets the subcostal; thus there is no 

 upper discocellular. The middle discocellular is less than half the length of the lower ; 

 the costal side of the cell is shorter than the median side. The palpi have a long 

 slender terminal joint twice as long as the second joint, which is subelliptical and con- 

 siderably shorter than the basal joint. The harpagones are simple lobes without hooks 

 or projections of any kind, and the tegumen bears a strong central hook. The bursa 

 copulatrix of the female has a fork-shaped spinous chitinous patch. 



Pieris protodice differs from P. calydonia in that the second subcostal branch is 

 emitted slightly beyond the end of the cell, the male has no short third branch in the 

 apex, but a very short one is present in the female. This third branch is wholly 

 absent in P. malenka, but can be traced in all the other species mentioned below. 

 There is no material difference in the male secondary sexual organs, except that the 

 harpagones in P.josepha are rather more pointed at the extremity, and that the male 

 of P. monuste has a pair of subanal pencils of hairs. 



Regarding the chitinous patch or patches of the bursa copulatrix of the females more 

 diversity prevails ; those of P. notistriga and P. malenka resemble that of P. calydonia, 

 that of P. viardi consists of two rods lying side by side close together, while those of 

 P. protodice, P.josepha, and P. margarita are of a form not uncommon in Pierinae, 

 being spinous rods rounded at their extremities and more or less constricted in the 

 middle. P. elodia and P. tenuicornis appear to be altogether without these patches. 



The species we here include in Pieris represent nearly all the groups found in South 

 America ; the only one of northern type is P. protodice, which is common in Mexico, 

 and is found as far south as the highlands of Guatemala. 



a. Subcostal nervure of primaries with two branches. 



1. Pieris malenka. (Pieris alethina, Tab. LXII. fig. 12 $ .) 

 Pieris malenka, Hew.,Ex. Butt., Pieris, t. 1. ff. 5, 6 1 . 

 Mylothris malenka, Butl. & Druee, P. Z. S. 1874, p. 35 7 \ 



Mylothris alethina, Butl. Cist. Ent. i. p. 81 3 ; Butl. & Druce, P. Z. S. 1874, p. 357 4 . 

 Perrhybris ostrolenka, Staud. Ex. Tagf . p. 36 5 . 



Alis albis, anticis dimidio basali costae et apice (introrsum profunde sinuato) nigro-fuscis : subtus anticis 

 fere tit supra sed dilutioribus, ad basin et ad apicem colore fusco flavo tincto ; posticis fascia transversa a 

 margine interno ad cellulao finem fusca, supra earn linea aurantiaca ; fascia costam propiore, costa ipsa, 

 margine externo, cum venis omnibus ad fines extimos fuscis, colore albo vix flavo tincto. 



$ alis pallide fuscis, anticis striga cellulari a basi (costam versus arcuata) altera subtus earn fulvis, fascia 

 subapicali maculosa flava, macula discali inter ramos medianos, altera angulum analem propiore flavis 

 fulvo tinctis ; posticis area interna fulva, apicem versus profunde trisinuata, fascia transversa indistincta 

 per cellulae finem fusca : subtus fere ut supra, sed dilutioribus et posticis fascia submarginali apicem versus 

 in maculas elongatas fracta, pallide flava. 



Bab. Nicaeagua, Chontales (Belt) ; Costa Eica ( Van Patten 2 3 ) ; Panama, Chiriqui 5 , 

 biol. cente.-amer., Ehopal., Vol. II., October 1889. s 



