THYSANOPTERA. 4OI 



characterise the Order, which m other respects is closely allied to 

 the Orthoptera, and they give the name to it. The Thysanoptera 

 {Qvawoi, fringe; TrrepoV, 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 (Fig. 381). 



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 (Fig. 382). 



