EXPLANATION 



OP 



TERMS USED IN E'NTOMOLOGY. 



A. 



Abbreviated, shortened, not extending to the extremity of a given 

 part ; (elytra) shorter than the abdomen. 



Abdomen, the posterior portion of the body, divided into segments 

 or rings, by sutures or incisures ; including the viscera, geni- 

 tals, &c, and composed of tergum, venter, stigmata, and anus. 



Abrupt, terminating suddenly, not drawn out to a point. 



Acetabuliform, like a circular shallow saucer, the sides of which 

 are more or less incurved. See calaihiform. 



Acetabulum, that segment of the postpectus that is situated behind 

 the peristaethium ; it is bounded each side by the parapleurse, 

 and behind by the mserianse ; it contains cavities before for 

 the insertion of the intermediate feet. 



Acicular, needle-shaped ; approaching subulate, but more slen- 

 der, with a more delicate and pungent point ; closely allied to 

 accrose. 



Acinaciform, cimitar-shaped ; sabre-shaped ; one thick and straight 

 edge, the other thin and curved. 



Acini, granulations. 



Aculeate, prickly ; furnished with, or ending in, prickles ; armed 

 with small sharp points. 



Aculeate-serrate, armed with numerous short spines or prickles 

 inclining towards one end. 



Actdei, prickles ; small sharp points. 



Aculeus, the instrument and appendages with which the female 

 lays her eggs; the oviduct or sting; an elongated dart, often 

 poisonous, seated in the extremity of the abdomen ; it is com- 

 pound, having two or more darts; exserted, projecting; re- 

 condite, concealed ; retractile, capable of being withdrawn ; 

 simple, having but one point; or vaginate ; inclosed in a bivalve 

 sheath; it is composed of valvee, vagina, and spicula. 



