Insects Injurious to the Apple. 



37 



Fl(5Ui;K-nK-,S ^HITII AT I;EST. 



Ikiu's. These are placed iu an irreo-nlar manner, nml soon n-et 

 washed oil' l,y rain. The hairs, as seen in the photograph, are dark 

 and are not found on all tlie ei;gs 

 (Fin-, 03) 



The ova, hatch alMnit tlie time the 

 leaves are hegiiining to expand. The 

 larv;e at once feed npon them, usiialh' 

 taking tlieir food singly, even if tlie 

 eggs are laid close togetlier. 



The cateriiillar (P'ig. LTi) is \ery 

 marked, owing to its liead heing lihie 

 witli two small Mack spots; tlie bodv is of varieil hue; some are 

 yellcAvisli-green, others bluish-grey and more yellowisli-green below, 

 with a Ijroken yellow line along the back and another (ju eacli side 

 below the air lioles, and the segments have small lilark spots; tlie 

 pale legs are also spotted with black, as also are the siicker-feet. When 



i'uU fed the caterpillars are 

 plump and very sluggish and 

 reach over 1 imdi in length. 

 Tliey de\'0iir the foliage A\'itli 

 rajiidity Avheii about half 

 grown, and continue to do so 

 until a few days before they 

 are full fed. They are mostly 

 mature by the end of June ; 

 some sent ine from Yorkshire 

 were just ready to spin b\' the 

 hrst ^\■eek in -June in I'.JOU, 

 others have been observed as 

 late as the Tth of duly (190o), 

 a record in an old notebook 

 11 (Olds one s))iiiiiing on the 

 .1(1 (if July(lSS4). :\lanvof 

 th( ( iterpillars lea\"e the trees 

 w h( n full fed and spin a njugh 

 ^11 \ eocoonoii any c(_)nA'enieiit 

 s])ot, olliers do so on the twigs 

 and boughs of the trees. AVith 

 the silk are niiiigh'(l fiits of 

 bark, and they may be even 

 entirely C(.ivered \\-ith it. From these cocoons the moths hatch out 

 in September and ou\vards into November. 



[.I. V. It. niiitoiii. 



FIG. 25.— L.Vl;\-.K liF THE FlGUilE-MF-S MuTIL 



Iiniiiatiivi' furnis oij friliaLTu. 



