,;:284 EXPLANATIONS OF TERMS USED IN TEXT. 



styliforw, shaped like a style. 



sub, a prefix meaning nearly; almost; somewhat; under, etc. It signifies 

 either that the term is not exactly applicable in its strict sense and 

 that it must be understood with some latitude, or that the object de- 

 scribed occupies an inferior position, i. e. lower than some other object. 



sub-costal rein, (Fig. 83). 



sub-median vein, (Fig. 33). 



subulate, awl-shaped. 



sulcate, grooved ; fiirrowed ; marked with broad, concave, parallel lines. 



sulcus, a linear groove or channel ; a groove-like excavation. 



supra, a prefix meaning above. 



suture, a seam or impressed line ; generally used in reference to the junction 

 of two pieces or plates. 



T. 



tarsus, tarsi, (tarsal), the jointed foot (Figs. 21, 35). 



tectjform, ridged in the middle and sloping down on each side. 



tegmina, the elytra, fore wings, upper wings or wing-covers (Fig. 33) . 



tegument, any natural covering or envelope. 



tempora, temples ; the sides of the head just in front of the eyes. 



tergite [tergum), the dorsal part of a body segment (Fig. 36). 



testaceous, dull yellowish-brown ; tile or brick colored. 



testes, glands secreting seminal fluids (Fig. 40) . 



tetramerous, having four joints as the tarsus of some insects. 



thorax, the part of the body of an insect to which are fastened wings and 



legs (Fig. 21). 

 tibia, tibias, the part of the leg between the thigh and the foot (Figs. 21, 



35). 

 trachea, trachex, air-tubes. 

 translucent, transmitting very little light. 

 transparent, transmitting light. 

 transverse, crosswise. 

 tricar inate, having three keels or carina?. 

 triquetral, with three flat sides. 

 trochanter, the second joint of the leg (Fig. 35) , 

 trurcate, cut off square at the tip. 

 tubercle, a little solid pimple or excrescence. 

 tuberculate, covered with tubercles. 

 tumid, tumescent, slightly inflated. 

 tympanum, the membrane closing the ear (Fig. 37). 



U. 



unarmed, without a spine. 



uniarticulate, having but one joint ; single-jointed. 

 ungues, the curved hooks terminating the tarsus (Fig. 35). 

 ulnar vein, (Fig. on page 155) . 



