LEPIDOPTEKA HETEROCERA. 



289 



Body generally nearly linear and cylindrical, varying in length 

 and stoutness. Palpi variable as to length; in some species much 

 shorter, in others a little longer than the head ; third joint varying 

 from one-eighth to one-half of the length of the second. Antennae 

 of the male generally more or less pectinated, sometimes simple ; 

 of the female generally simple, occasionally serrated. Abdomen 

 extending as far as the hind wings, or beyond them. Legs mostly 

 slender; hind tibiae very generally with four spurs of various length ; 

 middle pair wanting in a few species. Wings black, generally 

 narrow, adorned with yellow, luteous, or white stripes, bands, or 

 spots. 



Synopsis of the Species in the British Museum : — 



I. Wings with four stripes. 



a. Stripes of the fore wings linear. 



b. Costa with a stripe. Fulvia. 

 bb. Costa without a stripe. 



c. Hind wings pale along the inner border. Ligula. 

 cc. Hind wings not pale along the inner 



border. aurimutua. 

 aa. Stripes of the fore wings nearly triangular. mutans. 

 II. Wings pale with black borders. 



a. Veins black. auriflamma. 

 aa. Veins not black. 



b. Hind wings with a black stripe. aurifusa. 

 bb. Hind wings without a black stripe. 



c. Thorax not pale in front. basivitta. 

 cc. Thorax pale in front. dispar. 



III. Fore wings with a stripe and a band. 



a. Hind wings with a pale inner border. Abscissa, 

 aa. Hind wings luteous with a black inner 



border. 



b. Fore wings with a slender black border. repleta. 

 bb. Fore wings with a broad black border. immutata. 



aaa. Hind wings with an entire luteous stripe. integra. 

 aaaa. Hind wings with a forked luteous stripe. Megaera. 

 IV. Fore wings with a stripe and a spot. fixa. 

 V. Fore wings with a band, basal dots and sub- 

 apical spots. prolifera. 

 VI. Fore wings with a band and a spot. 



a. Hind wings with no pale spot. generans. 



aa. Hind wings with a pale spot above. mutata. 



