GLOSSARY. 161 



Saltatory.- Leaping. 



Sanguin'eous. Blood-red. 



Sca'brous. Roughened v/ith projecting points. 



Scrobe. A groove at the base of the antenna. 



Scu'tel. A triangular piece between the base of the wing- 

 covers and ohe thorax. 



Secre'tions. Substances separated from the blood, different 

 from the blood itself. 



Seg'ments. The parts into which an insect's body is divided 

 by the transverse depressed lines or circles (Fig. 352, 6). 



Seri'ceous. Like silk. 



SeYrate. Saw-toothed (Fig. 97). 



Ses'sile. Attached by the whole width. 



Se'ta. A bristle. 



Seta'ceous. Bristle-like. 



Se'tiform . Bristle-shaped. 



Smo~bth. Not roughened or spined. 



Spiii'nerets. Small openings out of which silk and other 

 secretions are excreted. (In caterpillars they are situated 

 in the lower lip, but in the scale insects they are situat- 

 ed on various parts of the abdomen.) 



Spl'nous. Furnished with spines. 



Splr'acles. The breathing pores or external openings of the 

 windpipe or trachae. (Fig. 89). 



Spontaneous. Applied to generation, as producing forms of 

 life without visible means. 



Spurs. Thick spines. 



Stem'mata. Same as Ocelli. 



SteYnum. The underside of the thorax. 



Stigma. A thickened spot on the under side of the fore wings 

 (Pig. 126, 7). 



Stig'mata. A term applied to the orbicular and reniform spots 

 on the front wings of Moths (See Fig. 121 mo and mr\ 



Strfae. Impressed lines or grooves. 



Strl'ate. Marked with impressed lines; grooved. 



SuTcate. Grooved. 



Sut'ure. The place where the two parts meet. 



