4 BULLETIN 419, U. S. DEFAETMElSrT OF AGEICULTURE. 



records of its occurrence. However, in States where the map shows 

 only a single record, a search for specimens would doubtless show the 

 species to be present generally, 



FOOD PLANTS. 



Desmiafuneralis feeds principally on the wild and cultivated grape. 

 It has been collected on fox grape, Vitis labrusca; southern fox grape, 

 Vitis rotundifolia; and Vitis cordifolia. 



Generally speaking, all varieties of cultivated grapes are liable to 

 attack, though there is some evidence to indicate that the larvae may 

 show discrimination. According to Woodworth (14) this distinction 

 made by the larvae between varieties is quite marked, the varieties 



Fig. 1. — Map showing distribution in tlie United States of the grape leaf-folder, Desmia funeralis, 



(Original.) 



Agawam, Brighton, Excelsior, Grain's Golden, Highland, Herman, 

 Israella, Jefferson, Jessica, Mary Ann, Lady Washington, Merrimac, 

 Mason Seedhng, Requa, Rogers, and others losing more than three- 

 fourths of their fohage, while others lose about one-half. The writer 

 has found in Virginia that the Chnton, Duchess, Martha, Moore's 

 Early, and Amber varieties are particularly attractive to the insect. 

 Varieties with tough leaves are less attractive than those with more 

 tender fohage. 



Plants other than the grape are fed upon by Desmiafuneralis, Titus 

 having found it on Virginia creeper (Parthenocissus quinquefolia [L.]) 

 near Somerset, Md. He also found two varieties of redbud, Cercis 

 canadensis and Cercis cJiinensis, as hosts, in the Department of Agri- 

 culture grounds at Washington, D. C. 



