204 LEPIDOPTERA. 



Genus 3. SETINA. 



Fore wings rather broad, spotted, rounded behind, thin in 

 texture and hardly opaque. 



1. S. irrorella, L. — Ex]^)anse of male 1 to 1^ inch, of 

 female J inch. Fore wings semi-transparent, ochreous- 

 yellow with rows of black dots ; hind wings paler. 



Antennae slender, black, fringed, in the male, with delicate 

 bristles. Head small, black ; collar yellow ; thorax black 

 with yellow shoulders and a yellow blotch behind the middle ; 

 abdomen black with a light yellow anal tuft. Fore wings 

 rather long and somewhat triangular, being narrow at the 

 base, broad behind, with the costa nearly straight, apex and 

 hind margin rounded, and dorsal margin straight ; semi- 

 transparent ochreous-yellow or whitish-ochreous, brighter in 

 colour at the margins, and with the extreme costal margin 

 deep yellow ; first and second transverse lines oblique and 

 nearly parallel, but only indicated by series of black dots all 

 placed upon nervures ; near the hind margin is another series 

 of black dots all placed hchcecn nervures, but varying in 

 number, commonly three at equal distances apart, but fre- 

 quently one or two more are placed near the apex, and some- 

 times the row is increased and rendered irregular by others 

 placed intermediately; cilia yellow. Hind wings long and 

 ample, very thin and delicate and nearly transparent ; pale 

 creamy ochreous, sometimes spotless, in other cases with one, 

 two, or three faintly blackish spots at the apex, and, more 

 rarely, an addition of a few more in a row near the hind 

 margin ; cilia yellow. Female much smaller in expanse, with 

 narrower fore wings and much shorter hind wings, but 

 similar in colour and markings ; abdomen short, thick, and 

 cylindrical. Underside of the fore wings pale grey with the 

 margins broadly yellow, the black dots of the hind margin 

 distinct, those of the two transverse lines obscure ; hind 

 wings very pale greyish-yellow ; thorax, abdomen and legs 

 black ; anal tuft yellow. 



