EXPLANATION OF PLATE I, 



I. THE BODY. UNDER-SURFACE. 



A. The Head. 



a,a, Antennae. b,b, Eyes. c,c, Palpi, k, Haustelluin or Proboscis/ 

 coiled up. 



B. The Thorax. 



d,d, First pair of Legs, on Prothorax ; e,e, Second pair of Legs, on 

 Mesothorax j f,f, Third pair of Legs, on Metathorax. 



C. The Abdomen. 



g,g,g,g,g,g,g, Segments or Annulations. h, Caudal or Anal Extremity. 



II. THE FORE-WING. 



a,a, Costal nervure. b, Subcostal nervure ; bl, b2, b3, b4, b5, Subcostal 

 nervules. cl, c2, Discoidal nervules j the second appearing to be a fourth 

 Median nervule, and sometimes so considered.* d, Median nervure : dl, d2, 

 d3, Median nervules. e, Submedian nervure. f, Internal nervure.** 

 gl, g2, g3, Disco-cellular nervules.f f h, Interno-median nervule.f 



III. THE HIND-WING. - 



a,a; b,bl, b2; d, dl, d2, d3; e; as in Fore-wing, c, Discoidal nervule (never 

 more than one in this wing), gl, g2, Disco-cellular nervules.ff k, Pre- 

 costal nervure ; bifid, its lower branch united to costal nervure. 



* Only thus in the Family Papilionida. 

 * * Rarely found, except in the Papilionidcz. 



f Only in the Families Papilionidce and Morphida. 



ft Except in the Family Papilionidce, there are only two disco-cellular uervules in the 

 Fore- wing, the first discoidal nervule being united to the sub-costal nervure. In the Hind- 

 wing there can never be more than two disco-cellular nervules. When these nervules are 

 wanting, the discoidal cell is said to be open. 



