64 PIERID.E. 



Genus XII. ERONIA. 



Eronia Jliibn., Boisd. 

 Mylothris, AcRiEA, E'llbn. 

 Pieris God'., Boisd. fyc. 

 Callidryas Boisd. 



Head rather broad, densely hairy in front ; the hairs sometimes very long. 



Eyes prominent, oval. 



MaxillcB very long. 



Labial Palpi rather short, densely clothed with scales, and in front with hair. Basal joints 

 elongate, subcylindric, compressed internally, curved ; second joint about one third the length 

 of the first, oval, or nearly round, concave internally, convex externally ; third joint minute, 

 rounded, placed at the apex of the second. 



Antenna} of moderate length, terminating gradually in an obovate compressed club. 

 Thorax rather stout, clothed sometimes densely with fine hairs. 



Anterior Wings subtriangular, sometimes rather elongate, the costa rounded. Subcostal nervure 

 five-branched ; the first and second nervules thrown off near together, considerably beyond the 

 middle of the cell ; the third more distant from the cell than the apex ; the fourth about equi- 

 distant from the third, and from the apex. First discoidal nervule not united to the subcostal 

 beyond the cell. Upper disco-cellular nervule wanting ; middle disco-cellular not one third the 

 length of the lower. Internal nervure very delicate, short, directed forwards, so as to enter the 

 submedian nervure. 



Posterior Wings obovate, the outer margin sometimes slightly dentate, the abdominal margin 

 forming a distinct channel. Precostal nervure simple. Discoidal nervure appearing to be a 

 third subcostal. 

 Abdomen of moderate size, about three fourths the length of the abdominal margin of the posterior 

 wings. 



Larva arid Pupa unknown. 



The only species hitherto placed in this genus is the one figured by Hiibner under the name of Eronia Cleodora ; 

 but six species included by Dr. Boisduval in the genus Pieris, and one species placed by him, provisionally, in the 

 genus Callidryas, undoubtedly belong to it. All agree in the structure of the antennas, in having the subcostal nervure 

 five-branched : the palpi with the first joint one third the length of the second ; this oval or rounded, convex externally, 

 concave internally ; the third joint extremely minute. To these must be added an undescribed species for which 



