| Major
  Families of Adult   Entomophagous
  Lepidoptera (Email Contacts)     ----Please CLICK on underlined
  categories to view pictures and to navigate in the key.    [A   will display all images for both pairs of
  a couplet]    LEPIDOPTERA  <General Characteristics>  [Latest
  Classification]   
   
    | 227a.    Antennae simple or modified, but
    usually not swollen apically; hind wing with frenulum (= bristle
    or group of bristles arising at humeral angle);  ocelli often present ........... (Lepidoptera)  (Heterocera)  |      
   
    | 228a (227a).    Wings absent or greatly reduced in
    size  |    
   
    | 228b.    Wings normally developed.  |    
   
    | 229a (228a).    Moth does not develop in a sac
    constructed by the larva  |          
   
    | 231a (228b).    Hind wing with 3
    anal veins; fore wing usually with 1st anal vein reaching wing margin |    
   
    | 231b.    Hind wing with 2
    anal veins, rarely with 1  |    
   
    | 232a (231a).    Hind wing with veins S-c+R-1 and R-s
    widely separate beyond discal cell  |      
   
    | 232b.    Hind wing with veins S-c+R-1 and R-s fused or closely
    parallel between discal cell and wing tip  |    
   
    | 233a (232a).    Fore wings with radial (accessory)
    cell  |      
   
    | 234a (233a).    Proboscis vestigial  |    
   
    | 234b.    Mouthparts usually developed, with
    scaled proboscis  |        
   
    | 236a (231b).    Fore wing with single complete anal
    vein  |      
   
    | 237a (236a).    Shaft of antennae tapering evenly from
    base to tip  |      
   
    | 238a (232b
    & 237a).    Hind wing with S-c
    usually free from R-s along the cell, though sometimes extending
    near it (also see couplet 230)
(Lepidoptera) 
    Pyralidae
    (Chrysauginae, ......... Phycitinae, Pyraustinae) |      
   
    | 239a (234b).    Maxillary palpi straight and extend
    forward horizontally, or vestigial  |      
   
    | 240a (239a).    Basal segment of antenna simple,
    though often with scales, hairs, or bristles |      
   
    | 241a (240a).    Hind wing with well-developed anal
    region; venation almost complete  |    
   
    | 241b.    Hind wing narrow-lanceolate or linear;
    venation often reduced.  |    
   
    | 242a (241a).    Hind wing with anal vein not distally
    forked  |          
   
    | 244a (241b).    Fore wing with discal cell formed  |      
   
    | 245a (244a).    Hind tarsi without evident groups of
    bristles  |      
   
    | 246a (245a).    Fore wing with discal cell set
    obliquely, the end distinctly closer to the hind margin than to
    costa; vein Cu-2
    very short and usually extending directly back to wing margin |        
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