52 



" Ivy is the last flower that supports the 

 Hymenopterous and Dipterous insects. On sunny 

 days quite on to November they swarm on trees 

 covered with this plant j and when they disap- 

 pear, probably retire under the shelter of its 

 leaves, concealing themselves between its fibres 

 and the tree which it entwines *." 



It is necessary again to remind the collector 

 that many species of beetles found in dung and 

 elsewhere, and, indeed, of insects in general, 

 bear a very great similarity to each other j and 

 to the eye of the inexperienced, may be consi- 

 dered as belonging to the same species, yet 

 very many will be found on examination totally 

 distinct from each other. To those, therefore, 

 who wish to gratify their friends, by collecting 

 for them, as well as those who have not had 

 much experience in collecting for themselves, 

 it is strongly recommended never to attempt 

 to decide on species in the fields, but to collect 

 all that are found ; as otherwise from the above 

 reasons, it is evident that they will preclude the 

 probabihty of capturing new species whose dis- 



* White. 



