until midway of the body, whence they narrow rapidly toward the anal 

 tip. As might be expected of a typical leaf-mining larva, the body is 

 distinctly flattened. The color is dirty white. (See Figures 3 and 4.) 



PUPA 



The pupa is at first white, but gradually becomes darker as it ap- 

 proaches the adult stage. It is about three-fifths as long as the larva, 

 regularly oval, and about half as wide as long (see Figure 4). 



Fig. 4. Larvae and pupae removed from mines. 

 (Magnified 6 diameters.) 



Life History and Habits 



The apple flea-weevil passes the winter in the adult, or beetle, stage. 

 Early in July the beetles begin to secrete themselves for the remainder 

 of the summer, the fall, and the following winter under leaves, plant 

 refuse, in the mulch or sod of orchards, or under any other object 

 which will afford protection, but as far as we know, not in the soil 

 proper. By far the greater number seek shelter in apple orchards, but 

 they have been found hibernating in negligible numbers in bunch-grass 

 (Andropogon sp.), blue grass, and trash along hedge rows, and under 

 wild crabs. They show no preference for any side of the tree, but are 

 more numerous where the cover is densest. In partially cultivated 

 orchards they are most abundant in hibernation near tlie trunk of the 

 tree, as is shown by the following table. 



According to this table there were from 1100 to 1700 beetles hiber- 

 nating under each apple tree in heavily infested orchards of this type. 



The heavily infested Ohio orchards had not been cultivated for 

 many years, and a heavy blue-grass sod covered the ground, forming a 

 dense layer of partly decayed vegetation over the entire surface (see 

 Figure 5). Under such conditions the beetles may be found in abun- 

 dance throughout the orchard, in larger numbers, however, under the 

 trees than elsewhere. 



