VI 



including Mr. Charles G. Barrett, Mr. J. B. Hodgkinson, Mr. J. 

 Sang, M. Ragonot, Mr. H. Marsden, Mr. G. T. Porritt, Mr. R. 

 Mitford, Rev. H. Harpur Crewe, Mr. Howard Vaughan, Rev. 

 B. Smith, and others, to all of whom he desires to express his 

 grateful acknowledgments. 



With respect to the plan of the CALENDAR, it may be explained 

 that under each month of the year is given the species, as they 

 appear, as 



OVA, or Eggs ; 

 LARVJE/ or Caterpillars ; 

 PUP.5j, or Chrysalides ; and as 

 IMAGOS, or perfect Insects ; 



With the Plant, or Material upon which they may be found ; or 

 the kind of Hiding-place, or Habitat, in which, they are most 

 frequently met with. Where no peculiar habitat could be 

 tabulated, in the case of the Tortrices and the Tinaea, some of 

 the more noted localities are mentioned. The Lists of Ova, as 

 well as of Pupae, might have been enlarged ; but only those 

 species have been notified about which something definite can 

 be stated. It is only chiefly those Larvae which hibernate that 

 have had the earlier period of the larval condition noted, in 

 order that the full term of its duration may be indicated. In 

 most other cases the period of approaching maturity only has 

 been given. 



After the work open to the Collector, each month, has been 

 thus set forth, 



of 



WITH THE TIMES OF THEIR APPEARANCE, 



follows, the months being indicated by Roman numerals. The 

 life of an Insect, in its various stages, can thus be seen at 

 a glance ; while details pertaining to each species will be 

 found specified under the month which is given in the body of 

 the Book, thus rendering a paged Index unnecessary. So few 

 of the smaller species being mentioned as OVA and PUP^E, they 

 are omitted from the LIST, the Larvae and Imagos only being 

 given. 



