14 THE CANADIAN ENTOMOLOGIST. 



Face pale lemon yellow (or yellowish stramineous), palpi of the same 

 hue, each joint of the maxillary palpi tipped with dark purple, the labial 

 palpi thickly dusted with dark purple and with a wide dark purple annulus 

 close to the tip. Vertex dark purple, with pale lemon yellow intermixed ; 

 antennae pale lemon yellow, faintly annulate with purple at the base, 

 towards the apex purple, faintly annulate with pale lemon yellow. Thorax 

 dark purple, with a narrow pale lemon yellow median longitudinarstripe, 

 and a wider and more distinct one on each side above the wings, and a 

 dark purple spot before the wings. Primaries pale lemon yellow and dark 

 purple ; the dorsal margin is dark purple from the base to near the ciliae, 

 where the purple widens over the apical portion of the wing, except a small 

 lemon yellow spot on the edge of the costal ciliae before the apex ; costal 

 margin from the base to the basal fourth dark purple ; from the basa] 

 fourth of the costa a rather wide fascia passes obliquely backwards from 

 the costal purple to the dorsal purple, uniting them, and thus enclosing on 

 the base of the disc an oblong pale lemon yellow spot. Immediately 

 behind the oblique purple fascia, the dorsal purple is excavated, and the 

 wing is pale lemon yellow to the costa and as far back as the ciliae, with a 

 little purple dusting or row of small purple spots along the extreme costa 

 before the ciliae. Sometimes there is a faint golden or stramineous patch 

 in the purple at the extreme apex, and sometimes the apex is a little 

 dusted with golden or stramineous, Ciliae golden or stramineous, with 

 three wide dark purple hinder marginal lines, one at the base, one in the 

 middle, and one at the tip. (Perhaps they might be better described as 

 dark purple, with two shining stramineous hinder marginal lines, one before 

 their middle and one before their tip.) Posterior wings and ciliae dark 

 purplish fuscous. Anterior and middle legs yellowish mixed with purple 

 behind, dark purple in front except the tarsi, which are silvery white with 

 each joint tipped with purple. Posterior legs yellowish except the apical 

 half of the outer surface of the femora, the tips of the tibiae behind, and 

 the tip of each tarsal joint. Thorax and upper surface of the abdomen 

 dark purple ; venter pale lemon yellow. In some lights what I have 

 called dark purple appears violaceous or iridescent, and the stramineous 

 portions appear golden or sulphur yellow. Al- ex. \\ in. Kentucky. 



Dr. Clemens received his. specimen from Virginia. I have bred it 

 from the leaves of the Black Walnut (Julians nigra). It mines the 

 upper surface, and, when first taken, was supposed to be the mine of a 

 Philoaiistis, containing a pupa. It was something more than an inch 

 long, a little crooked, very narrow, and resembled a small snail's track. 



