A M Y N T H I A Swainsonia. 



Family Papilionidae. Sub-family Colianae. 



Characters. 



Anlainse graduating from the base to a lengthened, cylindrical 

 truncated club; the terminal joint of which is naked and con- 

 cave. Head smooth, destitute of a fascicle ot hairs between 

 the antennae. Palpi as in Colias, the last joint inclining 

 upwards. Wings angulated, with concealed appendages. 

 Feet as in Colias. Aob. 



Type. Col. Morula. Auct. 



Specific Character. 



Wings above greenish white, anterior with a yellow disk, and a 

 quadrangular black dot, encircled with orange : tvings beneath 

 obscurely lineated with green. 



Colias Swainsonia. Leach. M. S. S. 



We had the satisfaction of discovering this lovely Butterfly 

 intheinterior of Pernarabuco, duringour Brazilian researches 

 in 1813. Although assiduously sought after, we never cap- 

 tured more than three specimens, and these were met with 

 far distant from the coast : it must be either excessively rare, 

 or very locally distributed. The colouring is peculiarly 

 chaste and elegant ; the ground is a pearly white, tinged 

 with green, and relieved by clear yellow : in the female this 

 latter colour is more diluted, and spreads nearly to the base 

 of the anterior wings. This group appears to be the tropi- 

 cal representative of Goneptet^yx ; from which it is much 

 more distinguished than Eurymus is from Colias. The two 

 European types are called by British collectors, Brim- 

 stones, and Clouded-yellows. Dr. Horsfield has judiciously 

 removed P. Glaucippe from Pieris to Colias, to which 

 (although an aberrant species,) it manifestly belongs. We 

 should not be surprised if that insect leads to Amynthia by 

 means of ^w//. LeacUiana (PI. 6. of our first series), which 

 will be seen, from the description, to exhibit many deviations 

 from its conjenors : this however is a mere supposition, 

 for we have not yet analized these groups. Independant of 

 the characters here sketched, Gonepteryx is distinctly se- 

 parated from ^/w^«i//m, by the peculiar construction of the 

 feet. The mistake of the printer, seen upon the plate, was 

 discovered too late for correction. 



