Tineidse 



trees of their parenchyma. While it does not appear to have 

 wrought great destruction generally, nevertheless there are in- 

 stances on record where 

 it has done much damage 

 in orchards. The larvae 

 have the habit of form- 

 ing their cocoons in com- 

 pany, attaching them to 

 the twigs in great clus- 

 ters, as represented in 

 Fig. 251. This fact has 

 led to the recommen- 

 dation that the trees, 

 when infested, should be 

 lightly pruned all over in 

 the fall, and the twigs 

 carefully collected and 

 burned. As the cocoons are located at the ends of the twigs, this 

 may be a partially effective remedy. Another remedy is to 

 thoroughly spray the trees with coal-oil emulsion or with linseed- 

 oil. The greasy application is said to destroy the pupae in the 

 thin papery cocoons. 



Fig. 251./?. pomifoliella. a, cocoons clus- 

 tered upon end of twig; b, cocoon, greatly en- 

 larged ; c, moth, very greatly magnified. (After 

 Riley.) 



Genus TINEOLA Herrich-Schseffer 

 (1) Tineola bisselliella Hummel. (The Clothes-moth.) 



Syn. crinella Treitschke ; destructor Stephens ; biselliella Zeller ; lanariella 

 Clemens. 



There are several species of Tineid insects which attack gar- 

 ments made of woolen fiber and furs. One of the commonest 

 and most widely distrib- 

 uted of these is the insect 

 which we are now consid- 

 ering. In Pennsylvania and 

 in Maryland and south- 

 ward, so far as observation 

 shows, this is the common- 

 est of the "Clothes-moths." 

 The damage, it is needless 

 to say, is not done by the 



Fig. 252. 

 432 



T. bisselliella. (After Riley.) 



