28 EXPLANATION OF TERMS 



Q. 



Quadrangular, having four angles. 



Quadrate, square ; somewhat square. 



Quadrilateral, having four sides. 



Quiescence, a state of hybernation somewhat resembling torpi- 

 dity, wherein the animal requires but little nourishment, and 

 exhibits exterior signs of life. 



R. 



Radial cellule, or marginal cellule, a portion of the membrane 

 of the wing, situated near the apex, included between the ex- 

 terior margin and a nervure which originates at the carpus and 

 passes, with various degrees of curvature, towards the apex ; 

 it is complete when the nervure reaches the apex, and incom- 

 plete when this member is abbreviated or interrupted, and 

 appendiculated when transversely divided by a nervure which 

 does not originate from the carpus; when there are two radial 

 cellules the nervure of one of them originates on the basal side 

 of, or below the carpus. 



Radiated, furnished with lines which proceed from a common 

 centre. See stellate. 



Radicula, radicle ; the basal joint of the antennae, attached to 

 the head. 



Radius, the first nervure of the external edge of the superior 

 wing; it extends from the base to the carpus, and is separated 

 from the cubitus by a membrane. 



Ramous, liaving branches ; branched. 



Raptatory, formed for seizing a prey. 



Reclivate, curved in a convex, then in a concave line. 



Recondite, (aculeus) concealed within the abdomen, seldom ex- 

 posed to view. 



Rectigrade, larvae, which having sixteen feet, walk with a rec- 

 tilinear body. See geometrse. 



Rectangular, in the form of a right angle ; having an angle of 

 ninety degrees. 



Rectilinear, right-lined ; formed in a straight line. 



Recurrent nervures, one or more ascending branches of the 

 brachial nervures, which are inserted into the cubital cellules, 

 sometimes into the first and second, sometimes into the second 

 and third, at others into one only. 



Recurved, bowed backwards. 



Reflected, or rejlexed, bent back rather angularly. 



Refracted, bent back as if broken. 



