30 EXPLANATION OF TERMS 



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, colour of arterial blood ; duller than puniceous. 

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

 Scale, the squama. 

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



without intervening angles. 

 Scapula, that segment that is situated one on each side of the 



peristaethium, on the anterior lateral angle of the postpectus, 



immediately beneath the humeral angle of the elytrum ; it is 



bounded behind by the parapleurum. 

 Scapus, scape; the second articulation of the antennas, often 



elongated ; it is the " bulbus" of Linne, and " le fuseau" of 



Degeer. 

 Scopa, thick hair, covering the posterior tibiae of some Hymen- 



opterous insects ; it is used in collecting and carrying pollen. 



See scopula and corbicula. 

 Scopula, bristles or rigid hairs, in some Hymenopterous insects, 



covering the inside of the plantse, principally those of the 



posterior feet. ; it is very conspicuous in polleniferous insects ; 



it is the " scopa" of Schrank, and " la brosse" of Reaumur. 



See scopa, Jimbria, flocculus. 

 Scriptus, lettered ; marked with various characters resembling 



letters. 

 Scrobiculated, pitted; having the surface covered with hollows; 



with deep round pits. See favose. 

 Scrotiform, purse-shaped. 



Scutel, or scutellum, a small subtriangular portion of the supe- 

 rior surface of an insect, generally separated by a suture from 



the middle of the base of the thorax. 



Scutellar angle, (of the elytra] is the angle next to the scutel. 

 Secund, pointing one way ; unilateral. 

 Securiform, hatchet-shaped ; triangular-compressed like the iron 



part of a hatchet. See dolabriform. 

 Segment, of the abdomen, is a ring or division of that part, and 



is bounded by sutures or incisures. 

 Semicomplete, (metamorphose) in this kind of change the insect 



continues active and feeds, as in Grillus. See coarctate, in- 

 complete. 



