ENTOMOLOGY. 



381 



1. COLEOPTEEA (Aristotle). -Beetles. 



Field or Garden Chafers : 1 and 2, Anisoplia agricola, mag. and nat. length ; 

 3, A. horticola, nat. size; 4 and 5, the same, and grub, mag. 



The upper pair of wings, wliieh are called wing-cases or 

 elytra, are usually horny or leathery, and thus form a 

 "sheath "for the large membranous under wings which are 

 folded beneath them. The head is furnished with large eyes, 

 jaws moving transversely, and with horns (antennce) of very 

 various shape. 



In the Water Beetles the hinder legs 

 are often flattened to a somewhat oar- 

 like shape, and fringed with hairs. 



The larvae are usually fleshy grubs 

 having scaly heads furnished with jaw^s ; 

 sometimes they are legless, but com- 

 monly have a pair of short legs on each 

 of the three segments next to the head ; 

 and the last segment of the body (or end 

 of the tail) has often a fleshy foot be- 

 neath it. 



Dytiscus margimili.'- 

 Water Beetle. 



Wireworm, nat. size and mag. 



The pupae are inactive, of a whitish 

 colour, and resemble the Beetle in shape ; 

 with the head bent forwards, and the 

 legs and wings laid along beneath the 

 breast and abdomen. For illustrations 

 of various hinds of Beetles, sec Cock- 



Larva and chrysalis of 

 Clover Weevil, nat. size 

 and mag. 



