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TRANSFORMATIONS OF INSECTS. 
stitute the order now under consideration — possess four very 
narrow membranous wings, without any folds or network upon 
them, but furnished and decorated with beautiful fringes upon the 
edges. These fringes characterise the order, which in other re- 
spects is closely allied to the Orthoptera , and they give the name 
to it. The Thysanoptera (Ovcravoi, fringes ; irrepov, a wing) have 
filiform antennae and very large eyes, and the different species of 
the genus Thrips have a great diversity of wing fringing. The 
structure of the wings is somewhat analogous to that observed 
in the Lepidoptera , in the Pterophorina , and the Alucitina . 
The metamorphoses of the Thysanoptera have not received 
much attention, but they are known to be of the incomplete kind. 
The quiet chrysalis condition is not observed, and the larvae are 
born from the egg, greatly resembling the adults. The absence 
of wings is the great distinction between the larval and the imago 
state, as it is in the closely-allied order of the Orthoptera. The 
larva moults several times, and the wings are gradually added, 
the colour of the insect altering also. 
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