Aor 14 



Aorta. — The blood tube ; a slender tube opening 

 from the foremost chamber of the " heart," and 

 passing forwards to the head, ending in the 

 neighbourhood of the brain in a trumpet-shaped 

 opening. A special contractile sac is situated 

 at the base of each antennae, into which it 

 propels blood received from the head cavity. 

 (L. — Gr. Late L. aorta — Greek, meaning the 

 great artery " rising " from the heart.) 



Apex. — (Wing) The angle between the costa and 

 the outer edge. (L. apex.) 



Apex. — The tip, point or summit. (L.) 



Apex abdominis. — (L. apex, and abdomen.) See 

 Crem aster. 



Aphidivorous. — Devouring aphids. (L. aphis, a 

 plant louse, and voro, to devour.) 



Apices. — Plural of apex. 



Apieulate. — Covered with fleshy, erect, short points. 

 (From L. apex.) 



Apneustic. — The term given to the closed or 

 secondary and adaptive type of tracheal system. 

 This type is distinguished by the want of 

 stigmata, or, if present, they are closed and do 

 not function. (Gr. a, and from pneuma, air.) 



Apo. — A Greek prefix signifying awa}- from. 



Apod, Apodal. — Without legs. (Gr. a, and poi's, 

 podos, the foot.) 



Apodema. — A broad transverse band crossing the 

 thorax in front of the scutellum seen in male 

 coccids. (Gr. apo, from, and demas, the body.) 



