110 



INSECTS INFESTING THE APPLE TREE. 



Fig. 85. Fig. 85. — Larva and Pupa 



of Apple Curcnlio, enlarged ; 

 a, the pupa ; 6, the larva — 

 color of each, white. 



The full grown larva meas- 

 ures a little under five lines, 

 or one third of an inch in 

 length, and usually lies in a 

 curved position ; it is of a 

 white color, sparsely covered with wrinkles, the spaces between 

 which are bluish-black, of which color is the line on the back. 

 The perfect beetle (Fig. 86) measures from one and one 

 half to two lines in length, and is of a dull reddish color, 

 marked on the thorax with three indistinct whitish Hnes ; on 

 the hind part of the wing-cases are four prominent humps, and 

 the snout is nearly as" long as the body. 



Fig. 86. — Apple Curculio ; a, 

 natural size ; 6, enlarged, side 

 view ; c, enlarged, back view — 

 colors, brown and gray. 



The perfect insect issues from 

 the pupa state early in Septem- 

 ber, and passes the Winter in a 

 semi-torpid state. It infests 

 apples, pears, quinces, thorn- 

 ap})les or haws, and crab- 

 api)lcs. 



Previous to last Fall (1882), when apples were found with a 

 single empty burrow, ants and some other insects were credited 

 with capturing the larva of the codlin moth before maturity, 

 but the presence of this insect being detected, explains the 

 true facts in many of the cases mentioned. 



HE>rEDii:s. — See note at end of No. 69. In the Sjiring use 

 No. 5, or No. 6, or No. 7. 



Fig. 86. 



