126 



INSECTS INJURIOUS TO THE APPLE, 



brown, with paler markings. This species is most commonly 

 found feeding on lice which attack the pine. 



All the Lady-birds are very useful creatures, and, with their 



Fig. 131. 



Fig. 132. 



a b 



Jarvse, should be encouraged and protected by the fruit-grower 

 in every possible way. 



The larvse of the Lace-winged or Golden-eyed Flies, Chry- 

 sopa, are equally destructive to aphides, roaming about among 

 them like so many tigers with appetites almost insatiable. At 

 6, Fig. 132, one of these larvse is shown, and at a some of the 

 eggs, which are attached to the end of fine upright threads or 

 stalks. These are usually ibund in clusters. The perfect in- 



FiG. 138. 



Fig. 134. 



Fig. 135. 



sect has four delicate, transparent, whitish wings (see Fig. 133) 

 netted like fine lace, bright-golden eyes, and a beautiful green 

 body. Fig. 134 shows the same insect with its wings closed ; 

 also a side view of a cluster of eggs. While beau- 

 tiful to look at, the insects are offensive to han lie, 

 as when touched they emit a very sickening, pun- 

 gent, and persistent odor. 



Other friendly helpers in this good work are the 

 larvse of the Syrphus flies. These are fleshy larvse, 

 thick and blunt behind, and pointed in front. (See Fig. 135.) 

 Their mouths are furnished with a triple-pointed dart, with 



