XIV GLOSSARY OF TERMS. 



Sinistrad. — Towards the left. 



Spinulose. — Set with spines or spinules* 



Spiracles. — The lateral pores in the insect body through which air- 

 enters the tracheae. 



Sternite. — The ventral piece of a ring or segment. 



Stigma. — A spiracle or breathing pore ; a patch of modified scales on 

 the wing ; a small discocellular spot. 



Subspiracular. — Applied to the lateral surface of the larva ; the longi- 

 tudinal area just below the spiracles. 



Sulcate. — Grooved. 



Tarsus. — The distal portion of the leg, consisting of five segments. 

 Tegula. — A small lateral sclerite of the mesonotum, situated just in 



front of and usually covering the base of the fore wing. 

 Tegumen. — The ninth abdominal tergite in the <$. 

 Tergite. — The dorsal part of a segment of the abdomen. 

 Termen. — 'The outer margin of the wing. 

 Tibia. — The fourth segment of the leg, situated between femur and 



tarsus. 

 Trochanter. — The small second segment of the leg lying between the 



coxa and femur. 

 Tubercle. — A little solid pimple or short fleshy process, which may or 



may not give rise to a seta. 

 Tuberculate. — Covered with tubercles. 

 Tumid. — Swollen ; enlarged. 

 Turgid. — Tumid . 



Uncus. — The tenth abdominal tergite in the <$. 



Vaginal plate. — The part of the vaginal area in front of and behind the 



orifice. 

 Venter. — The belly or under surface of insects in any stage. 



