june, 1860. 145 



blackish-brown, with three silvery-white spots along the inner 

 margin ; one almost at the base of the wing, one at the apical 

 third, and the other intermediate between them. On the 

 costa are two silvery-white spots, the first a little exterior to 

 the second dorsal ; the second costal opposite the third dorsal. 

 Along the hinder margin is a black hinder-marginal line, or 

 two decided converging black streaks, one from the costa, 

 and the other from the inner margin, meeting at the tip where 

 there is a small silvery-white spot. The cilia along the hinder 

 margin are silvery-white, tipped with blackish, and along the 

 inner margin dark gray. Hind-wings dark fuscous, cilia the 

 same. 



The larva mines the leaves of bush-clover {Lespedeza 

 violacea), early in September. It makes a whitish blotch 

 mine, with a number of narrow lateral mines, or rather wide 

 galleries running out from it on the upper surface of the leaf. 

 The blotch is chiefly in the middle of the leaf, the larva 

 mining along the mid-rib in the first instance, and when dis- 

 turbed it conceals itself by retreating to the mid-rib, and 

 applies itself along the course of it. Hence tenanted mines 

 may easily be mistaken for deserted ones. The mine never 

 contains " frass," and the larva seems to leave one capriciously, 

 whilst it is yet small in extent, to form a new one ; this it does 

 by penetrating the under cuticle of the leaf. In the course 

 of larval life many new mines are formed and the insect is a 

 troublesome one to breed. The larva is cylindrical, slightly 

 tapering from the first segment, and the body bright, con- 

 colorous green. It deserts its food plant about the middle of 

 September to form its cocoonet ; this is woven upon some 

 substance on the ground, in the vivarium, in a pucker on a 

 leaf, or under a turned-down portion of the edge, and is white. 

 It appears as an imago early in May. 



I have no good description of this larva in my notes, but 

 have of another having precisely similar habits, and in appear- 

 ance very like it. It mines a species of Desmodium, plants 

 nearly related to Lespedeza, and is probably the same insect, 

 or at least of the same genus, as the above. The body of this 



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