36 



did not see it overnight, as I have found chamber entomology not 

 ahvays conducive to slumber. It is also said that when its host, the 

 swallow, dies, it immediately takes flight. Can it fly ? My specimen 

 progressed by a heavy sort of hop. 



In conclusion I should like to draw attention to the very excellent 

 map I used ; the whole of France, I believe, has now been issued on 

 the same scale. It is published at eighty centimes a sheet. The 

 scale is too large for cycle touring, but to the pedestrian, and more 

 especially to the entomologist, it is invaluable. A visitor can see at 

 a glance the spots to make for, as waste places and forest lands are 

 alone productive in a country where hedges are either absent or 

 rare, and the roads straight and interminable. 



