BULLETIN 280, 17. S. DEPARTMENT OF AGRICULTUEE. 



destructive to strawberry plants, were found in two stomachs, and 

 in one other a weevil, Sphenophorus parvulus, that injures the roots 

 of o-rass. The well-known white grubs that attack grass roots and 

 a host of other plants are the immature forms of many species of 



Lachnosterna, of 

 several species of 

 Euphoria and of 

 Allorhina nitida. 

 Of these, re- 

 mains of Lach- 

 no sterna, were 

 found in 2 7 

 stomachs and of 

 Allorhina and 

 Euphoria in one 

 each. 



Lepidoptera 

 (caterpillars) 

 stand next to 

 Coleoptera (bee- 

 tles) in the ani- 

 mal diet of the 

 wood thrush. 

 Although eaten 

 with a fair de- 

 gree of regular- 

 ity during every 

 month of the 

 bird's stay in the 

 north, the most 

 were taken in 

 July (16-32 per 

 cent). The aver- 

 age for the sea- 

 son is 9.42 per 

 cent. Ants as an 

 item of food art- 

 third in impor- 

 tance, though if other Hymenoptera were included the order would 

 rank next to beetles. They seem to be a rather favorite food with 

 all birds of the genus Hylocichla. With the wood thrush they 

 begin with 18.12 per cent in April and gradually decrease through 

 the summer and disappear in October. The total for the season is 

 8.89 per cent. Hymenoptera other than ants were eaten with great 



B2084- 



Fig. 1. — Wood thrush {Hylocichla mustelina). 



