PLATES. 



I. — Oporabia autdmnata. 

 II. — ,, ,, filigrammaria, and dilutata. 



III. — Aberrations of British Lepidoptera (coloured). 

 IV. — A. Sympetrum striolatum. B. Platycnemis pennipes. 



C. Lestes sponsa. (Structural details.) 

 V. — Standfuss' Temperature Experiments. 

 VI.— 

 VII. — ,, Experiments in Hybridzation. 



VIII.— 



4 11 • 



