J64 



MAY. 



the end of the circular labyrinth : a tree, when 

 once infected, never fails to fall a victim in the 

 course of a few years to this little destroyer, 

 however large and flourishing. 



Notoxus Monoceros is a local British insect, 

 and appears to haunt the sea coast, and the 

 banks of the larger rivers in dry sandy situa- 

 tions ; with us on the banks of the Trent, in 

 one spot, it is found in great abundance, at the 

 roots of the Tansy (Tanacetum vulgare), and 

 the silver- weed (Potentilla anserina.) It is 

 also very fond of dead muscles that are half 

 dried by the sun. Mr. Marsham has given its 

 habitat on syngenesious flowers, but I have 

 never observed it to take wing. 



Of the twenty-five species of Papiliones enu- 

 merated in the list of this month, eight only are 

 known to inhabit this county; of which the Po- 

 lyommatus Alexis and the Pontia Brassicae, Napi 

 and Cardamines are common, and the Meletaea 

 Euphrosyne, the Polyommatus Alsus, and the 

 Pamphila Sylvanus are less frequent: the 

 Papilio Machaon has been taken once at New- 

 ark on Trent, and at Welbeck. 



Cossus ligniperda, or Goat-moth. A moth 

 of large size and considerable beauty, not un- 



