124 INSECTS INJURIOUS TO THE APPLE. 



the time the buds are bursting, with strong soap-suds, weak 

 lye, or tobacco-water, the latter made by boiling one pound 

 of the rough stems or leaves in a gallon of water, will destroy 

 a large number of the young lice. A frost occurring after 

 a few days of warm weather will kill millions of them; in 

 the egg state the insects can endure any amount of frost, but 

 the young aphis quickly perishes when the temperature falls 

 below the freezing-point. 



Myriads of these aphides are devoured by Lady-birds and 

 their larvae. In Fig. 123 is represented the Nine-spotted 



FIG. 123. FIG. 124. FIG. 125. 



Lady-bird, Coccinella novemnotata Herbst, one of our com- 

 monest species, which is found almost everywhere ; it is of a 

 brick-red color, and is ornamented with nine black spots. 



The Two-spotted Lady-bird, Adalia bipunctata (Linn.) 

 (Fig. 124), is also extremely common. This is very similar in 

 color to the nine-spotted species, but in this one there is only 

 a single spot on each wing-case. In the figure the insect is 

 shown magnified. 



Fig. 125 represents the Plain Lady-bird, Oydoneda san- 

 guinea (Linn.). This is somewhat smaller in size than the 

 last two species named, of a lighter shade of red, and without 

 any spots on its wing-cases. It is known also as Coccinella 

 munda. 



The Comely Lady -bird, Coccinetta venusta Mels. (Fig. 126), 

 is pink, with ten large black spots, the hinder ones being 

 united together. 



The Thirteen -spotted Lady-bird, Hippodamia IS^unctata 

 (Herbst), is shown in Fig. 127 ; it is larger than C. sanguined, 

 and has thirteen black spots on a brick-red ground. 



In Fig. 128, c, is represented the Convergent Lady-bird, 



