ORDER HEMIPTERA. 



65 



In 



whence nearly twenty thousand species have been described, 

 the British Isles their number reaches nearly a thousand. 



The study of the Hemiptera has hitherto been sadly neglected, 

 owing to the great majority of them being very small species. 



They include the Plant Bugs, Sand Bugs, Water Bugs, Cuckoo 

 Spits, Froghoppers, Plant Lice, and many other familiar forms. The 

 three great divisions into which they are divided are treated by 

 many entomologists as distinct orders. The following will show 



Fig. 79. — Macrocheraia Grandis. 



under each heading the principal distinguishing character of each 

 group or sub-order as we shall designate them. 



Si(b-0?'der i, Heteroptera. — Fore wings of a parchment like 

 consistency. 



Sub-Order 2, Honioptera. — Fore wings membranous and 

 naked, similar to the hind ones. 



Sub-Order 3, Anaplura. — Wingless; no metamorphosis. 



The Heteroptera are regarded as the highest of the three groups, 

 followed by the Homoptera. while the Afwplura coTistitute a 



