K O R F O L K. 37 



It is now fomewhat diminHhed in fize, being 122. 

 lefs than Half an inch irt length, and thick in TENTHREDO 

 proportion; its colour, too, is altered from THE TURNIP 

 black to a blueifh or lead coloUr ; with a black 

 line waving along its back; and with t\vo 

 Imall black eyes, which now arc become con- 

 fpicuous. It is ftill covered with wrinkles, and 

 appears in every other refpeet the fame animal 

 as before. 



It is entertaining to fee (through a magnifier) 

 the caterpillars cat. The avidity and voracity 

 with which they feed are fimilar to thofe of a 

 hungry cow turned into a frefh pafture -, and 

 the motion of the head and mouth is not un- 

 like that Of the quadruped. If a caterpillar 

 begiris in the middle part of the leaf j it firft 

 takes off the furface, towards it ; and does 

 not, at once, break through the leaf; but^ 

 having cleared a round part half-way through, 

 it makes a perforation, and preferitly difpatches 

 the other furface of the leaf: nor does it after- 

 wards eat the two fides together, but grinds 

 them down fingly ; until having made a circu- 

 lar hole of from one-tenth to two-tenths of an 

 inch in diameter, it leaves this for another 

 perforation. 



It feems probable that thefe round holes 



are not the effect of the caprice, but of the 



X 2 i^ 



