92 GROWTH OF INSECTS. 



beetles in their adult state, which in turn produce 

 a fresh laying of eggs from which other grubs are 

 hatched. 



The term " MAGGOT" is more precise than grub, 

 though some maggots are erroneously called grubs. 

 Maggots are never produced from the eggs of butter- 

 flies, moths, saw flies, beetles, or weevils, but always 

 from the eggs of two-winged flies, or from bees or 

 wasps. A maggot differs from a caterpillar or a grub 

 in having no feet, and from an earthworm in never 

 being of a dull red or dingy green colour, but usually 

 white, greyish, often transparent, so as to show the in- 

 testines, and, in the case of the water maggots, called 

 blood-worms, of a bright blood red. 



The best known maggots are those of the blow-fly, 

 which live on meat, either fresh or putrid ; those of the 

 bot fly, producing the disorder called bots in horses ; 

 those of the cheese-fly, called jumpers, or hoppers, 

 and sometimes erroneously mites, (mites not being 

 insects at all, but ranking with spiders) ; and those of 

 the crane flies, which destroy grass and corn fields, 

 often improperly called the grub. The wheat fly, as it 

 is called, and the Hessian fly, which have proved so 

 destructive, are both grubs of small flies, not unlike 

 gnats. 



Maggots are popularly called mawks in the North, 

 and gentles in the South, and very often worms. 



These three sorts caterpillars, grubs, and maggots 

 are, by modern naturalists, called by a Latin word, 

 which means a mask or a phantom (*) because Linnreus 

 took a fancy to suppose them only insects in a mask, 

 which when they had thrown off", they were> of course, 

 unmasked. I think the term objectionable and im- 

 proper, though it is often convenient for want of a 

 better. 



(1) This Latin word is Larva. 



