PIEEIS. 137 



Pieris elodia has an extensive range over a large portion of South America, being 

 found in South Brazil * and throughout the western portion of the continent, and in 

 our country as far north as Southern Mexico. 



In Venezuela an allied form, P. suadella, occurs in the province of Caracas, in which 

 the costal half of the cell to the costa itself is blackish, and the base of the wings is 

 freely sprinkled with black scales. This form is distinct enough as shown by the types, 

 but in the neighbourhood of Merida, parts of Colombia, and Eastern Ecuador an inter- 

 mediate form between P. suadella and the true P. elodia is found, so that we are 

 doubtful if P. suadella will prove a definite species. Specimens from Western Ecuador 

 agree with the typical Mexican form. 



It shows but little individual variation throughout this wide range beyond a difference 

 in the width of the dark apical portion of the primaries. 



In Guatemala its range extends from near the sea-level in the Polochic valley to an 

 altitude of 5000 feet in the neighbourhood of Duefias. 



12. Pieris tenuicornis. (Tab. LXII. figg. 8, 9 6 , 10, 11 $ .) 



Leptophobia tenuicornis, Butl. & Druce, Cist. Ent. i. p. 110 1 ; P. Z. S. 1874, p. 360 2 ; Butl. Lep. 

 Ex. p. 116, t. 43. f. 4 3 . 



Alis fusco-nigris ; antieis macula ultra cellulam bifida albida, area interna infra venam median am griseo-caerulea 

 extrorsum canescente ; posticis bitriente basali griseo-caerulea : subtus, antieis fuscis area infra venam 

 medianam et macula bifida ultra cellulam albidis, squamis quibusdam coloris ejusdem in costa et ad basin 

 cellulae ; apice et posticis omnino venis fuscis divisis aurantio-flavis. 



5 alis fuscis : antieis plaga irregulari infra venam medianam, altera bifida ultra cellulse finem griseo-albis ; 

 posticis plaga magna cellulari fiavescente : subtus fere ut in mari, sed posticis fascia lata fusca marginem 

 externum versus. 



Hah. Costa Rica ( Van Patten l 2 3 ), Irazu (Bogers) ; Panama, Chiriqui (Champion, 

 Arce), Veraguas (Arce). — Colombia. 



This pretty butterfly has a near ally in P. ccesia of Ecuador, but that species has a 

 narrower black margin to the secondaries, and the yellow spot in the apex of the 

 primaries beneath is either evanescent or wholly absent. Its range is restricted in our 

 country to Costa Rica and the State of Panama, and it passes southwards into northern 

 Colombia, whence we have an example taken by Salmon at Frontino in the Cauca valley. 

 Mr. Champion's specimens were captured at altitudes between 2500 and 4000 feet above 

 the level of the sea on the Volcan de Chiriqui. 



We have figured Costa Rica specimens. 



13. Pieris, sp. % 



We have a small specimen of a Pieris from Tampico in Mexico apparently belonging 

 to the group containing P. oleracea of Harris from North America, but it is in very 

 bad condition and hence difficult to make out. It is apparently nearly immaculate 



* We do not consider Pieris balidia of Brazil to be distinguishable from P. elodia. 



biol. CENTK.-AMEE., Rhopal., Vol. II., October 1889. t 



