PREFACE. 
7 
to Entomology if they were acquainted with the method of 
collecting insects, and were furnished with some work to give 
them an insight into their distribution and arrangement. 
The utility of the Calendar must be obvious to every one, 
as containing extensive and substantial information such as 
the Tyro will require. Those who reside at a distance from 
the metropolis have a great advantage, as by carefully examin- 
ing such places as are referred to in the Calendar they may 
not only meet with the species enumerated, but are likely to 
capture new insects, at least undescribed, for as yet very little 
is known of the Entomology of Britain. 
I cannot omit returning my thanks to that acute and ex- 
cellent Entomologist J . F. Stephens, Esq. F.L.S. whose ex- 
tensive knowledge of the subject and the readiness with which 
he has always assisted me deserve my warmest acknowledge- 
ment. To Mr. Sowerby also I am indebted for many per- 
sonal favours. 
