GLOSSARY OF TERMS. 



(Compiled largely from that of Mr. E. E. Green's 

 ( Coccidas of Ceylon/ pp. vii-x.) 



Abdomen. All the hinder part of the insect posterior 

 to the thorax. 



Anal cleft. A deep incision in the females of the 

 Lecaniinde extending from the anal orifice. 



Anal lobes. A pair of more or less prominent appen- 

 dages of the abdominal segment placed over or 

 near the anal orifice. 



Anal ring. A chitinous ring, usually bearing hairs, 

 encircling the anal orifice. 



Antennae. A pair of jointed organs or " feelers " 

 situated on the head. 



Apodema. A broad transverse band crossing the 

 thorax in front of the scutellum in male coccids. 



Apodous. Without legs. 



Apterous. Without wings. 



Atrophied. Imperfectly developed. 



Biarticulate. Having two joints. 



Garina. A ridge. 



Caudal. Pertaining to the posterior extremity. 



Cephalic. Pertaining to the head. 



Cereous. Composed of wax, or wax-like. 



Chitin. A hard tegumentary substance somewhat 

 resembling horn. 



Chitinised. Hardened by the deposition of chitin. 



Chitinous. Consisting of chitin. 



Circumgenital glands. Circular spinnerets disposed in 

 groups around the genital orifice. 



Cornicle. A short blunt horn or rounded protube- 

 rance. 

 VOL. n. 17 



