ISS OTiu:]; mrmbkr.s of the class — in,spx:ta 



The plum eurculio is a .small rough beetle with a long 

 snout, that lays its eggs beneath the skin of ijlums, peaches, 

 immes, etc. The larva, or " grub," liurrows into the fruit 



and lives there for al)out 

 one month, causing 

 " wormy " plums and 

 ])caches. It finally en- 

 ters the ground to pu- 

 Ijate, and after about 

 five or six weeks the 

 adult Ix-etlc comes forth. 

 The Mexican cotton 

 boll wee^•il is a small 

 snout lieetlc that is ex- 

 ceedingly injurious to 

 cotton (Fig. 134). It 

 came into the United 

 States from Mexico and 

 is gradually sjircading 

 o\"er the cotton belt. 

 The young lai'va eats the 

 tender inside portions of the s(]uares oy l)olls and so destroys 

 them. 



Other examples of beetles are the carpet beetles, l)lister 

 beetles, ladybirtl beetles, etc. Many beetles are injurious 

 to trees, fruits, grains, and vegetal)les. 



Bees, wasps, and ants. — These are familiar insects and 

 con.stitute the order, HjjDienoplera (MemJjrane winged). 

 They have two pairs of thin memhranous wini/s iritli few or no 

 cross veins. Tiieir mouth parts are formed for bitinij and 

 sucking and the metamorphosis is complete. The tjodies of 

 the females usually possess a sting, piercer, or .saw. 



Fig. 1.32. — Vuiw conuiiou beetles 



