EXPLANATION OF PLATE L 



I. THE BODY.— Under-surface. 



A. The Head. 



a,a, Antennse. b,b, Eyes. c,c, Palpi, k, Haustellum or ProLoscis, 

 coiled up. 



B. The Thorax. 



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

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



C. The Abdomen. 



SiE'E'E'SS'S' 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. ol, c2, Discoidal nervules ; 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.ff 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 Papilionidce. 

 * * Rarely found, except in the Papilionidce. 



\ Only in the Families Papilionidce and Morphida. 

 f f Except in the Family Papilionidce, tliere are only two disco-celhilar nervules in the 

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

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

 wanting, the discoidal ceU is said to be open. 



