THE GEAPE LEAF-FOLDER. 3 



cords the species in limited numbers in Indiana, The latter writer 

 recommends gathering and burning all dead leaves. 



Marlatt (17) gives a short account of the insect's life history and 

 recommends the use of an arsenical spray as well as hand picking and 

 clean culture as combative measures. 



Smith (19, p. 459) hsts Desmia funeralis from several locahties in 

 New Jersey, and Bogue (18) records two broods of the insect in 

 Oklahoma. Picking the folded leaves is recommended, together with 

 rearing the parasites and allowing them to escape. 



Unusual injury by the pest in various localities in Georgia is 

 recorded in the Annual Report of the Georgia Agricultural Experi- 

 ment Station (20) . 



Webster and NeweU (21), in Ohio, reared the insects, together with 

 a parasite, Habrohracon gelechiae, from grape leaves. Washburn (23) 

 records the insect in Minnesota and recommends hand picking. 

 Pettit (24, p. 322) refers to its presence in Michigan. 



Quaintance (25) gives a short sketch of the Ufe history of the grape 

 leaf-folder, with treatment, the latter consisting of spraying, hand 

 picking, and clean culture. Vines sprayed with arsenicals for other 

 insects will not be troubled by the leaf-folder. 



Essig (26) has recently treated of the pest in Cahfornia, giving a 

 short account of the life history of the species; arsenical spraying is 

 recommended as a remedy, although the insect has never become 

 economically important in the Far West. 



DISTRIBUTION. 



Walker (7) gives the distribution of Desmia funeralis as United 

 States and Nova Scotia to Orillia, Ont6,rio Province, Canada. 

 According to Marlatt (17) it occurs from New England southward to 

 Florida, and westward at least to the Rocky Mountains. The Atlan- 

 tic States is given as its range in Dyar's hst (21). 



In California, according to Essig (26), it occurs in the central part 

 of the State, being most commonly found in the Sacramento and San 

 Joaquin valleys. 



It will be seen from the above and from the references given under 

 the history of the species, that Desmia funeralis is widely distributed 

 in the United States, covering doubtless aU regions where the wild or 

 cultivated grapes grow. It also extends on the north to include a 

 considerable portion of Canada. However, the insect has not as yet, 

 %vith occasional exceptions, assumed the proportions of a pest of much 

 economic importance outside of the Central States between the lati- 

 tudes of 35^ and 40°. 



On the accompanying map (fig. 1) are shown localities in the United 

 States and Canada where the writer has been able to find definite 



