PROTESILAUS Swainsonius, 

 Swainsonian Swallow-tail. 



Sub-family Papilionre. Genus Amphrisius. Sub-genus Protesilaus. 



Nob. 



Sub-Generic Characters. 



See pi. 93. 



Specific Character. 



Wings pale straiv-colour ; anterior with a forked band near the 

 black exterior margin, a?id another much shorter towards the 

 middle, both black. 



Papilio Swainsonius. Langsdorff, MS.S. 

 Mus. Nost. 



We have searched in vain for some account of this very 

 distinct and handsome species, collected by our venerable 

 and enthusiastic friend Dr Langsdorff, in the interior of 

 Brazil ; and transmitted to us some years ago, in remem- 

 brance of the many happy days we passed together in 

 the enchanting scenery of that delightful region. We 

 have not seen the species in any of the London collections, 

 and we believe it altogether undescribed. 



The Larva and pupa are of course unknown to us, 

 but the whole structure of the perfect insect agrees so 

 truly with that of Protesilaus Lelius, that we have no 

 doubt whatever of its belonging to the same sub-genus, 

 and thus becoming an interesting addition to a group, 

 capable of the most complete and diversified demonstration. 



104. 



