73] LEPIDOPTEROUS LARVAE — FRACKER 73 



ec. Adfrontals extending two thirds and front about one half the 

 distance to the vertical triangle. Pseudogalleria 



aa. Segment 9 with alpha as distant from rho as from beta (as in Fig. 

 38) and with mu, kappa, and eta present on one pinaculum (as in 

 Fig. 46). 

 b. Pi group consisting of only two setae on abdominal segment 7 and 

 often only one on segment 8, Alceris 



bb. Pi group trisetose on abdominal segment 7 and bisetose on seg- 

 ment 8. 

 c. Middle seta of trisetose Kappa group on prothorax dorsad of the 

 other two. Epagoge 



cc. Middle seta of Kappa group on prothorax ventrad of or in line 

 with the other two. 

 d. Middle seta of Kappa group on prothorax at least three times 

 as far from caudal as from cephalic seta, 

 e. Mesothorax and metathorax with Pi group bisetose (as in 

 Fig. 50). Archips (a) 



ee. Mesothorax and metathorax with Pi group unisetose 

 (Fig. 40) 

 f. Second ocellus much farther from first than from third. 

 (Fig. 80). Platijnota 



Archips (b) 

 ff. Second ocellus as close to first as to third (Fig. 71). 



Ancylis 



Olethreutes 



Tortrix 



Episimus 



Cenopis 



dd. Middle seta of Kappa group on prothorax not more than 



twice as far from caudal as from cephalic seta. 



e. Fourth ocellus much closer to third than to sixth and caudad 



of line joining third and sixth. Ecdytolophia 



ee. Fourth ocellus about half way between third and sixth and 



in line with them. (Fig. 70). Enarmonia 



Lord Walsingham in a recent volume of the Biologia Centrali- 

 Americana changes to some extent the generic location of species in the 

 Tortricidae. Three of his transfers are adopted here, the former genus 

 names being included in parenthesis; but in several other instances, the 

 change does not seem to be supported by the evidence of larval structure. 

 The following were the species examined: 



