An Explanation of the principal Terms used in 

 Entomology- 



ABDOMEN, the hinder part of the body distinct 



from the thorax, and formed of segments or rings. 

 Achlvi, a subdivision of the genus Papilio, containing 

 those species of the section Equites which have no 

 blood-red spots on them ; but an ocellum, or eye, 

 at the inner angle of the posterior wings. 

 Aculeated, armed with points. 



Aculeus, the sting, a sharp dart seated in the extre- 

 mity of the abdomen. 

 Adscita, a division of the genus Sphinx, containing 

 such species as differ in habit from the true or le- 

 gitimate Sphinges, and whose larvse are likewise dif- 

 ferent. 

 Ala, the wings. 



Alucita, a division of the genus Phalsena, including 

 those with digitated wings, that is, split to the base. 

 Angulaied, wings, the posterior margin having pro- 

 minent angles. 

 Antenna, the horns, two slender bodies placed upon 



the head, for the most part articulated. 

 Apex, in the wings, the part opposite to the base ter- 

 minating the anterior margin : in the Elytra, the 

 part at the extremity of the abdomen, 

 Aptera, from a, without, and tftsgov, a wing, the name 

 of the seventh order of insects; including those 

 which have no wings, such as the spider, &c. 

 Apterous, where the insects of the order Coleoptera 

 want the under wings, and have the elytra united, 

 so as to form one case. This occurs in some species 

 of the genera Curculio, Tenebrio, and Mordella. 

 Aristated, terminating in a beard or bristle. 

 Articulated, with distinct joints. 



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