THE TIIRIPID.^. 349 



New Holland, and is by far the largest of its kind. Indeed, 

 it bears about the same relation to the ordinary Thripidae that 

 an elephant bears to a cat, being more than one-third of an 

 inch in length. The figure is slightly magnified, in order to 

 show the structure more clearly, the exact length being indi- 

 cated by the line in the upper part of the illustration. The 

 antennae are moderately long and very slender, and the head is 

 long and narrow. On each side of the abdomen are seven tooth- 

 like appendages, and the insect is also armed with long, sharp, 

 bristly spines. 



The larvae of the Thripidte are active, and somewhat resembling 

 the perfect insect. There is but little change of form in the 

 pupa, except that the rtidimentary wings are very plain, and 

 the limbs are rather hampered by a filmy covering, so that the 

 creature is sluggish in its movements. 



