MACRO-LEPIDOPTERA OF THE ISLAND OF ARRAN. 251 



Pieris brassier. ' Satyrus Janira. 



,, napi. Chortobius Davus. 



Argynnis Aglaia. „ Pamphilus. 



,, Selene. Thecla rubi. 



Vanessa urticse. Polyommatus Phlaeas. 



Satyrus Semele. Lycaena Icarus. 



Unfortunately Mr. M'Arthur took specimens of Pieris napi 

 during the early part of bis visit only, and neglected to take 

 those of the summer emergence, so that I remain ignorant as to 

 the appearance of the latter, but they were seen in some abun- 

 dance ; the specimens taken scarcely vary from the spring form 

 of the insect as usually seen in the South of England, but they 

 appear to me to be a shade darker in colour in the male, and 

 the female has the venations of the wings darker than those of 

 any I possess. 



The specimens of Lijccena Icarus are very brilliant in colour, 

 almost approaching to that of L. Adonis, and are larger than any 

 southern-caught specimens I have seen. 



The remainder of the butterflies taken do not call for any 

 remark. 



The SphingidiB are not well represented, but two species were 

 seen, viz. .--^ 



Smerinthus populi and Macroglossa stellatarum. 



The Bombyces are better represented. The following species 

 were captured, viz. : — 



Hepialus hcctus. Euthemonia russula. 



,, , lupulinus. Chelonia plantaginis. 



,, '. sylvinus. Arctia fuliginosa. 



„ velleda. Bombyx rubi. 



,, ,, V. carnus. ,, quercus. 



,, humuli. Saturnia carpini. 



It is worthy of remark that, within so contracted an area 

 as Arran, the whole of the British species of the genus 

 Flejnalus were taken ; the females of II. hcctus are very fine ; 

 //. sylvinus rich in colour ; and II. velleda as beautifully 

 marked as those from the Shetland Isles ; but H. humuli in 

 no way approaches- the variety IletJilnndica in the males, but 

 the females have the upper wings of a very rich buff, with 

 bright red markings, and the under wings beautifully suffused 

 with rose-colour. 



