THE ENTOMOLOGIST. 



No. GL] 



JANUARY, MDCCCLXIX. 



[Price 6d. 



Contributions tcuards a Life-history of the Pear-Jiy {Cera- 

 litis eitriperda). By Edwakd Newman. 



Fig. 1. The male Pear-tly magnified. Fig. 2. The natural size. 

 Fig. 3. The ovipositor of female. 



It will scarcely be reckoned an unwarrantable act if I 

 assume that Mr. MacLeay's once celebrated notice of the 

 orange-fly (Ceratitis eitriperda), an insect very destructive to 

 oranges, is altogether unknown to the majority of my readers. 

 This once popular Essay was published in May, 1829, in the 

 ' Zoological Journal,' then under the able editorship of Mr. 

 Vigors. Having been made acquainted with the ravages 

 committed by this insect during the hot summer and autumn 

 of 1868 on our pears, it has become not merely a pleasure, 

 but a duly, to reperuse and reconsider the labours of so 

 accomplished an entomologist as Mr. MacLeay, at however 

 remote a period they may have been written. 



In the first place, it seems desirable to draw a clear line 

 of demarcation between the two natural orders of fruits 



VOL. IV. 



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