FIELD BOOK OF INSECTS. 



black thorn; conspicuella, on birch; prunivorella, on wild 

 cherry; guadripunctella, on chokecherry. 



Larvae of Mamara salictella mine long lines in the tender 

 inner bark of young willows. 



Larvae of Proleucoptera smilaciella make blotch mines in 

 leaves of cat-brier (Smilax) ; pupae in hammock-like cocoons 

 on under side of leaves. 



The larvae of the following species of Phyllocnistis make 

 long, winding, thread-like mines in leaves: ampelopsiella, of 

 Virginia creeper; vitifoliella, of grape; liriodendrella, of 

 tulip poplar. 



Larvae of Tischeria citripennella make trumpet-shaped 

 mines in oak leaves; quercitella, dentate mines on upper 

 side of oak leaves; solidaginifoliclla mine goldenrod leaves; 

 malifoliella make yellowish-brown blotch mines in apple 

 leaves; anea, funnel-shaped blotch mines in blackberry 

 leaves. 



The larvae of Setomorpha insectclla, an almost cosmopoli- 

 tan species, feed on hair and other dry animal products, 

 but, in America at least, do not often become injurious 

 in houses. 



Larvae of Xylestliia pruniramiella, in woody excrescences 

 on plum trees. 



The larvas of Tinea feed on rotten wood, fungi, dry 

 animal products, and the like. There have been more 

 than a dozen species recorded from New Jersey alone, 

 although the adults have very secretive habits. The 

 following species is well known and widely distributed : 



There are three species of Clothes-moths (see also 

 Buffalo-bugs), each belonging to a different genus but all 

 are Tineids and all are Old World species which have long 

 been associated with man, "corrupting" his treasures: 

 Tinea pellionella (Plate LXII) has a case- 

 ri ^? a making larva, the case being cylindrical, 



about as long as the larva. Herrick 

 writes: "The young larva, of course, soon finds its case 

 too small and, as it grows, it has to enlarge the case from 

 time to time. This enlargement is done in a very interest- 

 ing manner. Without emerging from its case, the larva 

 cuts a slit halfway down one side, thus forming a triangular 



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