280 NATURAL HISTORY OF OUR SHORES 



Leucania putrescens, Leucania V album, Agrotis lunigera, 

 Agrostis saucia, etc. 



The " Thrift Clearwing " (Sesia philanthiformis) is a coast 

 species, its larva feeding in the interior of the clumps of 

 thrift, selecting chiefly those that are isolated and starved. 



One of the rarest of the British butterflies also lives on 

 the coast, at Dover, and is fairly common in Jersey, at St 

 Owen's Bay. 



The Hymenoptera. Sandy tracts near the sea are quite 

 a paradise for the fossorial members of this order. 



In the summer of 1902 Mr E. Saunders, F.L.S., took 

 fifteen species of wasps and bees on the coast of Jersey 

 which had not as yet been recorded. 



Three species of bees form their nests in the sand banks. 

 They are leaf -cutters ; they line their cells with oval bits 

 which they cut from various plants, and the tops are covered 

 with two or three circular pieces. 



The female does the leaf cutting, and may often be seen 

 flying homeward with her burden, looking like a flying leaf. 



These species are Megachile maritima, Megachile centun- 

 cularis, and Megachile argentata. 



Diptera. Several species of the " two winged " flies also 

 live exclusively on the coast. Among these is a striking 

 form, Anthrax veluiina, which has more than half of the 

 wing jet-black, and Thereva annulata. 



The minute forms of Clunio have been mentioned in the 

 chapter on the " Marine Insecta." 



