Laeerta. 



135 



more frequent in some localities than in others, they cannot be 

 regarded as local races, they are mere individual cases of more or less 

 perfect melanism, affecting both sexes though apparently more 

 frequent in females than in males.* Some are really entirely black, 

 others are only of a blackish grey showing more or less distinctly the 

 •darker and lighter markings. 

 Measurements (in millimetres) : 



1. (J, Schneeberg, Lower Austria. 2. ^, Bournemouth. 3. ^, 

 Brussels. 4. $ , Co. Meath. 5. $ , Bozau, Transylvania. 6. ? , 

 St. Peter, Carniola. 7. $ , Boussers, Vaud. 



* Tlie British Museum specimens are from Eastbourne (female), Corfe 

 Castle, Dorset (male), Lioraan, Cantal (female), and Saohalien Id. (male and 

 female). 



