227 Tra 



Torpidity. — A state of hybernation in which no 

 exterior signs of life are exhibited. (L. torpidus, 

 from torpeo, to be numb.) 



Tortilis. — Twisted. (L. from tortus, pa. par. of 

 torqiieo, to twist.) 



Torulose.— Having few, but large elevations. 

 (Antennae) ; joints possessing tumours or knobs. 



(L. torulus.) 



Torulus. — The bed ; the cavity or socket in which 

 the base of the antennae is planted. (L.) 



Trabecula. — A basal mass of fibres situated within 

 the cellular envelope and on either side of the 

 supraoesophageal ganglion, and giving rise to 

 the cauliculus. (From L. trahs, a beam.) See 

 Mushroom Bodies. 



Trabeculus. — The beam of the antemiae ; a small 

 movable stalk, situated close to and in front of 

 each antenna. (L. trahs.) 



Tracheae. — The organs of respiration in insects ; 

 they are simple tubes which communicate 

 externally with the air by means of spiracles, 

 and internally with the blood. From each 

 spiracle a single trachea enters the body. If 

 the tracheae upon entering the body separate, 

 diverge, or ramify throughout the region in their 

 immediate vicinity without any obvious connec- 

 tion with the tracheae of the adjoining spiracles, 

 they are said to be detached ; and connected 

 when there is a grand longitudinal trachea 

 traversing each side of the body throughout its 



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