29 



Fig. 23. Lepidoptera. Potato moth. 

 Slightly reduced. {Original.) 



The adults are often beautiful in their colouring and 

 the delicate patterns they exhibit. Some of the larger of 

 them, especially some of the night-flying moths, are known 

 as bats, molly boobys, etc. 



.s 





x t 



Fig. 24. Lepidoptera. Full-grown caterpillar of moth borer. 

 Enlarged. {Imperial Dept. Agric.) 



Order VIII. Coleoptera. Sheath- Winged Insects. 



The members of this order have the first pair of wings 

 thickened and horny, to form a sheath or cover for the 

 membranous second pair, which are the true wings for flight. 

 When at rest these latter lie folded under the first pair. 



The wing covers (elytra) meet in a straight line down 

 the back, protecting the wings and generally the entire 

 dorsal surface of the abdomen. The mouth parts are formed 

 for biting in both larval and adult stages of growth. The 

 metamorphosis is complete. The name of the order is 

 derived from the Greek words coleos, a sheath, and pteron, 

 a wing. 



