THE 



ENTOMOLOGIST'S CALENDAPx, 



EXHIBITING THE TIME OF APPEARANCE AND HABITA- 

 TION OF NEAR TliREE THOUSAND f^PECIES OF 

 BRITISH INSECTS. 



In forming the following Calendar, I have been anxious to render it as 

 extensive as possible, and at the same time to introduce as many species 

 of insects aa my own knowledge of the subject, and the few works that 

 have hitherto been pidjlished relative to British Entomology, could make 

 it. In the times of appearance, and the situation where found, of a great 

 number of species, I have been greatly assisted by my kind and much 

 respected friend J. F. Stephens, Esq. F.L. S. whose rich cabinet has 

 always been open to me, and who also has furnished me with much valu- 

 able information, derived from his own observations. In many species I 

 have been unable to give a reference to a description, several of them 

 being new to Britain, and hitherto undescribed ; but thought it best to in- 

 troduce them, as they are certainly valuable acquisitions to a cabinet. 



As many of the Linnean genera have not yet been sufficiently investi- 

 gated, and the species requiring a minute examination, such genera and 

 species are distinguished by italics. Of these the most extensive are the 

 Lepidoptera, the genera of which are the least known in any department 

 of Entomology. Of the Ilemiptera, Newoptera, Hymenoptera, and Di- 

 ptera, but little is yet known of the species, consequently a very small 

 number is introduced : hov.-ever, they may be obtained in the course 

 of collecting. I may be censured by the scientific Entomologist for in- 

 troducing the English names of the' Lepidoptcra, but my object has been 

 to render this a useful work; and many collectors are acquainted with 

 them by no other name ; yet it is to be hoped that these will hereafter be 

 discontinued, as the scientific name is as easily retained in the memory 

 (if a person uses himself to it) as the absurd English ones in present use. 

 The species marked by the asterisk (*) I am rather doubtful if found 

 in the month in which they are placed in the calendar ; but such is the 

 time of the plants on which they feed being in blossom, which is certainly 

 a good guide to the Entomologist. 



The obelisk (f ) to the plant in the habitation denotes that such insects 

 are generally found in the larva state, and should be sought for accord- 

 ingly, the insect being rare or difficult to procure in the perfect state. 



O This mark, placed in other times of appearance, denotes that they 

 may be found in such situations throughout the year. 



As many of the Lepidoptcra last but a few days in the perfect state, I 

 have distinguished the time of the month in which such species appear by 

 the following: b. beginning; m. middle: e. end: — also, /. larva: p. pupa. 



