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INSECTS HEMIPTERA DIAGRAM G. 



various kinds of cabbage. They are found in abundance in 



kitchen gardens, 

 which they fre- 

 quently devas- 

 tate. But it is 

 enough to kill 

 them and to keep 

 them away to 

 place branches of 

 flowering broom 

 on the plants 

 Cabbage Butterfly. which are in- 



fested by them. The insects cannot bear the neighbourhood of this 

 plant. 



ORDER HEMIPTERA. 



Insects of the order Hemiptera have a straight proboscis 

 which they can easily bury in hard substances ; they have four 

 wings, which appear at the first glance to be alike; but when 

 we examine them more closely, we perceive that the fore- wings 

 are only partly similar to the hind-wings ; another part, either 

 the edge, or a portion near the base, is horny like the elytra of 

 beetles. Hemiptera undergo only an incomplete metamorphosis ; 

 the larva already greatly resembles the perfect insect, and the 

 pupa still more. 



The Cicada is a large insect which is found in the New Forest. 

 The English species is mute, but most of the foreign species 

 are celebrated for the loud chirping of the males, whose vocal 

 organs are situated under the abdomen, or level with the first 

 segments. Two plates or two scales are noticed covering a small 

 skin stretched like that of a drum. The cicada produces its song 

 by agitating this with special muscles. The cicada feeds by 



