152 AMERICAN ENTOMOLOGY. 



Eeiuse, ending in an obtuse sinus, or broad shallow notch ; ter- 

 minated by an obtuse hollow. 

 Reversed, (wings) deflexed, the margin of the posterior wings 



projecting beyond that of the anterior wings. 

 Reviviscence, the awakening from torpidity ; the restoration from 



suspended animation. 

 Revolute, rolled backwards spirally. See convolute. 

 Rhombus, a quadrangular figure, having its four sides equal and 



its opposite lines parallel, with two opposite angles acute and 



two obtuse. 

 Rhomboid, a figure approaching to a rhombus. 

 Rigid, inflexible, not easily bending; opposed to limber. 

 Rimose, full of cracks. 

 Ringent, gaping. 



Rosens, color of a rose, a pale blood red. 

 Rostellum, a little bill or beak ; it is horny and articulated as in 



Cimex, &c. ; it is the '' rostrum" of Latreille. See rostrum. 

 Rostrum, an immoveable prolongation of the head, at the end of 



which is the mouth, as in the Curculio kind. Latreille applies 



this term to the rostellum of the Cimices. 

 Rotate, wheel-shaped. 



Rudiment, the incomplete formation of a part or organ. 

 Rufous, reddish. 

 Rugous, wrinkled ; with irregularly w\aved and elevated lines. 



See corrugated. 

 Runcinate, notched ; cut into several transverse acute segments 



which point backwards. 



S. 

 Saccate, gibbous or inflated towards one end. 

 ^Sagittate, arrow-shaped; triangular, and deeply emarginate at 



base. 

 Saltatory, (feet) formed for leaping, the thighs being dilated. 



See ambulatory, cursory. 

 Sanguineous, color of arterial blood ; duller \\xai\x puniceous. 

 Scabrous, rough like a file, with small raised dots. See asperous. 

 Scale, the sqiiama. 



Scalloped, (edge) marked or bounded by segments of circles, with- 

 out intervening angles. 



