298 



NATURAL HISTORY. 



506. The insects of the order Aphaniptera, the Fleas 

 and their allies, have only the most indistinct rudiments 

 of wings ; but the metamorphosis is complete. The lar- 

 vae inclose themselves in small silk cocoons to pass into 



the imago state. The 

 common Flea, a mag- 

 nified representation of 

 which is given in Fig, * 

 2 31, has a curious ap- 

 paratus for sucking 

 blood, which is very 

 beautiful as examined 

 with a microscope. 

 This insect, like other 

 great icapers, as Grasshoppers, Frog - hoppers, etc., has 

 very large hind legs. 



507. In the order Apte. 

 ra, or wingless insects, are 

 found the different kinds of 

 Lice which infest different 

 animals. In Figure 232 is 

 represented the common 

 Louse; at a of the ordinary 

 size, at b magnified. At c 

 is one of its legs magnified ; 

 at d are its eggs, also mag- 

 nified. 



Fig. 231. Flea. 



Fig. 232. Louse. 



Questions. What is said of the haustellate apparatus of the Hemip- 

 tera ? What gives them their name ? What is said of their meta- 

 morphosis? How are the Cicadas an exception to this? What is 

 said of the Ked-eyed Cicada ? What of the Frog-hoppers ? De- 

 scribe the Aphid* and their habits. What is said of their honey- 

 dew? What is said of the scale-insects? What of Cochineal? 

 What is said of some aberrant bugs of this order ? What is said of 

 the extent of the order Diptera ? What of the size of these insects ? 

 What are their peculiarities? What is said of their larvae? What 

 is said of Flies? What are Cheese-hoppers? Describe their mode 

 )f leaping. Describe the larvae of the common Musquito. Describe 



