EARLY THORN. 



275 



early May. In 1905, a male occurred at Carnforth, Lanes,, on 

 June 8 ; the second generation appears in July and August. 

 A third has been obtained in captivity, and the moths of this 

 brood are similar to those of the second. It has happened that 

 the emergence of some moths of the second, or summer, form 

 has been delayed until the 

 following February, but these 

 remained true to their race 

 and did not assume the spring 

 form. 



Generally distributed 

 throughout England and 

 Wales, and often abundant, 



Fig. 7. Fig. 8. 



Early Thorn at rest. Caterpillar of Early Thorn. 



(Photos by H. Main.) 



especially in the south. In Scotland, Renton states that it is 

 common in Roxburghshire, but there is only one brood ; the 

 range extends to Sutherlandshire. Widely spread in Ireland 

 and plentiful in some parts. 



