NORTH AMERICAN LEPIDOPTERA. 



18.- 



l)rown borders is usually darker and widened externally, forming a conspicuous 

 l)lack triangular spot; lower surface of the front wings gray, especially towards 

 the apex, with a slight hrassy tinge. 



Larva. — Length of the full grown larva 8—12 mm. Body cylindrical, taper- 

 ing slightly towards each end. Head small, rounded, slightly bilobed, black, 

 and somewhat polished ; antenniE white, 4-jointed, basal joint largest, the second 



Lsetilia coccidivora Comstock. 



(after Comstock) 

 a, egg; b, larva; c, pupa; d, imago; e, moth at rest. 



about one-fourth the length of the first, third nearly hs long as the tirst, but only 

 about one-third as thick, fourth a mere tubercle; upper surface of the body a 

 greeniish black color with a faint tinge of bronze ; prothoracic shield black, finely 

 granulated, and with a pale dorsal line ; anal shield a little darker than the body 

 and sparsely beset with long hairs. Stigmata and all piliferous .spots brown, 

 with pale centres; under surface of the body bluish green. Legs black, with 

 the nodes bluish green, the ring of booklets of prolegs pale brown with a light 

 center. 



