THE INSECTS OF JETHOU 



BY MR. W. A. LUFF, F.E.S. 



Jethou is a small islet lying to the south of Herm, from 

 which it is separated by a narrow but deep channel. 



It is almost circular in shape and measures about half a 

 mile in diameter. Except at one spot, its sides are every- 

 where precipitous. There is very little of Jethou under 

 cultivation, except a small plateau on the summit ; the rest is 

 in fact a rabbit warren. 



On the north side, near the two dwelling houses are a 

 number of apple and other trees. On the north-west it is 

 connected at low water by a rough causeway with a mass of 

 rock called Crevichon, which is covered with vegetation. 

 The Insects enumerated in the following list were all captured 

 during two very enjoyable excursions of this Society on 

 June 25th, 1890, and June 26th, 1894. It cannot, therefore, 

 lay claim to be in any way exhaustive, but will serve to show 

 how great is the variety of insect life even in the smallest of 

 the Channel Islands. 



The only insect not on the Guernsey list is Taphria 

 nivalis, a beetle which cannot be considered a common species. 



LIST OF THE INSECTS OF JETHOU. 

 LEPIDOPTERA. 



RHOPALOCERA (Butterflies). 



Pieris brassiese, L. One, June 25th, 1890. 



P. Papas, L. One, June 25th, 1890. Saw several June 26th, 1894. 



Pypameis eapdui, L. One, June 26th, 1894. 



Epinepele janipa, L. One, June 25th, 1890 ; three, June 26th, 1894. 



Csenonympha pamphilus, l. Common. 



Lyesena 33gon, Sckiff. One captured, several others seen, June 25th, 1890. 

 L. apgiolus, L. Several flying about the tops of apple trees. One captured, 



June 25th, 1890. 

 L. ieaPUS, Rott. One, June 26th, 1894. 



