10 " STUNG" CATERPILLARS. 



Many pupae, especially of the larger moths, 

 are also lost through the means of some ich- 

 neumon fly, which has laid its eggs within 

 them. 



It is impossible to detect a "stung" cater- 

 pillar until it has ceased feeding, and not always 

 easy to detect it even at that time. Often the 

 caterpillar changes into a chrysalis without 

 "betraying any signs of the mortal injury that 

 it has sustained ; but, when the time arrives for 

 the appearance of the insect, the disappointed 

 collector finds that instead of the moth the 

 ichneumon fly occupies the box. 



In such a case the ichneumon should always 

 be killed and preserved, together with the chry- 

 salis from which it emerged, so that in process 

 of time a valuable collection is formed of moths 

 and the various species of ichneumon which 

 infest them. 



In the illustration on page 8, the reader will 

 see a figure of the ichneumon fly which attacks 

 the Death's-head Moth, fig. 3, the pupa being 

 shown in fig. 2. , 



WE will briefly take notice of one or two 

 insects which ought not to be entirely passed 

 over. One is the PRIVET HAWK MOTH (Sphinx 



