38 Mr. Butler's Revision of Genera of 



GENUS 3o. PONTIA. Fabric! us. 



Illiger's Mag., 6, p. 283 (1807). 



Ajwriri, Hitbn. ; Leuconea, Don/. ; Neopliada, Belir. 



I can find no structural difference between P. Crcdo'dl 

 (tlie type) and the Nama and Judith groups ; P. CortjtM, 

 Notha, and Mencqna may form a section {Neoi^liasia, Belir.) 

 on account of the different form of the wings. 



GENUS 30. METAPOPJA. Butler. 



Differs from the preceding in the position and length of 

 the disco-cellulars and in the less hairy palpi. 



GENUS 37. SYNCHLOE. Huhncr. 



Verz. bek. Schmett., p. 94 (ISlC). 



This generic name has been applied to a genus of Nym- 

 phalince; the latter may now take the name Chlosyne. 



GENUS 38. TATOCHILA. Butler. 



Allied to the preceding and to Ponfia, Ijut differing from 

 Synehloe, in neuration, and from Pontia in form and palpi. 



GENUS 39. HERP^NIA. Butler. 



Resembles an Arrje (Satyrince) in coloration : it differs 

 from the preceding genera in the totally different disposi- 

 tion of the disco-cellulars in frontwing. 



GENUS 40. PHULIA. IIcrr-ScMffcr. 



Corr. Blatt. Zool. min. Ver. Begensb. XXL, p. 105 (1867). 



GENUS 41. EKONIA. Boisduval. 



Sp. Gen. Lep., 1, p. G04 (183G). 

 Dryas, Wllgr. 



Restricted to E. Clcodora and tlie Lcdci group. 

 The name Dryas was previously used by Hiibner and 

 has subsequently been used again by Felder. 



GENUS 42. NEPHEPONIA. Butler. 



Will include N. Idofcea, Thalassina, Argia, Bnquctii, 

 Pilaris, Chionc., and the Asiatic group N. Hippia, Johcca, 

 Bcehera, and allies. 



GENUS 43. EROESSA. Doublcday. 



Gen. Diurn. Lepid., p. 56 (1847). 



The species E. Chilensis bears a general resemblance to 



