3 
72 Transactions of the Boyal Society of South Africa. 
Species : a succession of individuals similar in appearance, structure, and habit, mating 
freely and producing young which themselves mate freely and bear fertile 
offspring resembling each other and their parents. 
Spine : a sharp process. 
Spinose : Spinous : Spined : set with thorns. 
Spiracles : the respiratory orifices. 
Squames : see Plates. 
Stigmata : the spiracles. 
Stoma -ata : a breathing pore : = stigma. 
S3anbiosis : a life relationship existing between different kinds of animals or plants, or 
between animals and plants ; true symbiosis is where both parties to the relation 
benefit. 
Synonym : a name erroneously applied to a species or genus that has been previously 
named and described. 
Tarsal : relating to the tarsi or feet. 
Tegument : a covering surface or skin. 
Tenent hair : specialized hair for clinging or clasping. 
Terminal : situated at the tip or extremity; opposed to basal. 
Test : the secretionary covering of Coccidae, especially such as is waxy, horny, or glassy. 
Testaceous : dull yellow-brown. 
Trachea -ae : the spirally ringed breathing tube or tubes of insects. 
Translucent : semi-transparent ; admitting the passage of light but not of vision. 
Translucid : clear ; transparent enough to be seen through. 
Transparent : so clear as not to obstruct vision. 
Trochanter : the small joint connectiiig the femur with the coxa. 
Ungual : relating to the claw. 
Venter : under surface ; opposed to dorsum. 
Viviparous : applied to insects which bear living young. 
Vulva : the sexual orifice of the female. 
Wax glands : small circular glands concerned in the secretion of waxy substances ; present 
on the pygidium as circumgenital glands and round the spiracles as parastigmatic 
glands ; occurring in other parts of the body in various families. 
