89 



Dorcaschema nigrum, Magdalis pandura, and M. harhita have all 

 been reared from hickory twigs. Tomoderus constrictus has been 

 reared from the stems of Heleniuni autumnale. 



Pholisora catullus has been reared from strawberry leaves in Augnst. 

 Palthis angulalis, Blastohasis glandulella, and the parasitic species 

 Elachista protceteratis were all reared from seed cluster of sumac. 



Desmia funeralis with its parasite {Habrobracon gelechicB), Pyralis 

 costalis, Blastohasis glandulella, and Galasa riibidana have all been 

 reared from masses of grape leaves collected in vineyards. 



Dichelia sulfureana and Eudemis hotrana with the parasite Bracon 

 mellitor were all reared from seeds of the garden sunflower. 



Loplioderus velutiana, Oxypiilus tenuidactylus, Exartema permun- 

 dana, and a species of Glypta have all been reared from larvse feeding 

 on the leaves of blackberry. 



Conchylis hunteana, together with the parasite Bracon mellitor, 

 were reared from seed clusters of Vernonia noveboracensis. 



Grapliolitlia prunivora was reared from berries of 'a species of 

 Crataegus. 



Mellisopus latiferreana and Blastohasis glandulella were both reared 

 from acorns. 



Tischeria malifoliella and Ornix geminatella, with the parasite 

 Pimpla indagatrix, were all reared from leaves of the apple. 



A number of spraying experiments were carried out with the follow- 

 ing results: Swifts s arsenate, of lead, 3 pounds to 50 gallons water, 

 was applied to potato vines badly infested with Dorypliora lO-lineata, 

 and, though there was a heavy rainfall the night following the appli- 

 cation, all small and medium- sized larvse were killed, and about half 

 of those nearly or quite full grown. Later, the same experiment was 

 tried, but again the application was followed by a heavy rain, despite 

 which about 75 per cent of all larvae were killed. As against Lina 

 lapponica, on willow, 3 pounds to 50 gallons water killed small and 

 medium-sized larvae, but did not seem to affect the older and larger 

 larvae. In another experiment, where 5 pounds of the arsenate of lead 

 was used in 50 gallons of water, all larvae were killed and the foliage 

 was not injured. 



Adler^s green arsenoid gave us the following results : For Lina lap- 

 jjonica, 1 pound to 100 gallons water killed small and medium-sized 

 larvae, but not the larger ones, with no injury to the willows upon 

 which they were feeding. One pound to 50 gallons killed all larvae, and 

 also the foliage, though the latter put out anew later in the season. 

 On rosebushes, and against Monostegia roscE, 1 pound to 150 gallons 

 water was apparently effective and did not injure the foliage. 



Comparative experiments were carried out with green arsenoid and 

 Paris green, with the following results: One pound to 100 gallons 

 water, and 1 pound to 150 gallons water, with and without lime, did 

 not appear to affect either the adult Dorypliora or the foliage of the 



