GLOSSARY. 



353 



TEA'CHE-A (Gr. tracheia, the 

 rough windpipe). The respira- 

 tory tube in vertebrates; the 

 air-tube of tracheate insects. 



TKI-CHOT'O-MOUS. Dividing by 

 threes. 



TRI-CTJS'PI-DATE. Ending in 

 three points. 



TRI-DAC'TY-LTJS. Having three 

 toes or claws. 



TRIG'O-NATE. Three-cornered. 



TRI'GO-NEU-TISM. Where three 

 broods occur in a season. 



TRI-QUE-TAL,'. Having three 

 more or less long angles; three- 

 cornered; triquetrous. 



TRO-CHAN'TER (Gr. trochanter, 

 the ball on the femur). In in- 

 sects, the small, short joint be- 

 tween the coxa and femur. 



TRO- CHAN' TIN. A piece often 

 present on the outer side of, 

 and sometimes movable on, the 

 coxa. 



TROCH'LE-A. The thickened 

 base of the hind wings, in 

 Cicada and Trichoptera. 



TRO'PHI. Old term for the 

 mouth-parts taken collectively. 



TRUN-CA'TED. Cut squarely off; 

 docked. 



TU-BER-CU'LOSE. Covered with 

 tubercles. 



UN'CI-NATE. Hooked at the end. 



UN-GTJIC'U-LTJS (Lat. a little 

 claw). A claw at the end of a 

 foot. 



U-RO-MERE' (Gr. ouros, tail ; 

 meros, a part). Any of the 

 abdominal segments of an Ar- 

 thropod. 



U-EOP'O-DA (Gr. ouros, tail; pous, 



podos, foot). Any of the ab- 

 dominal feet of Arthropoda. 



U-RO-SOME' (Gr. ouros, tail; 

 meros, a part). The abdomen 

 of Arthropods. 



U-RO-STERN'ITE. The sternal or 

 under piece of the uromeres or 

 abdominal segments of insects. 



VAL'VULE. A small valve-like 

 process. 



VEIN. Applied to the ribs or 

 "nervures" of the wings of 

 insects ; the branches of the 

 veins are called wnules. 



VE'LUM. A broad process at the 

 inner end of the fore tibia of 

 bees. 



VEN'A-TION. The system of 

 veins of the wings. 



VEN'TER. The whole under sur- 

 face of the abdomen. 



VEN'TRAL. Applied to the under 

 side of the abdomen, or of the 

 body of invertebrates. 



VER'MI-PORM. Worm-shaped. 



VER-RIC'U-LATE. With thick-set 

 tufts of parallel hairs. 



VER-RU'COSE. Covered with 

 wart-like prominences. 



VER'TEX. Crown of the head. 



VER-TI-CIL'LATE. Placed in 

 whirls. 



VES'I-CLE (Lat. vesiea, a bladder). 

 A little sac, bladder, or cyst. 



VI-BRIS'SA. A whisker; curved 

 bristles or hairs situated in cer- 

 tain Diptera between the mys- 

 tax and the antennae. 



VIL'LOSE. Clothed with soft, 

 rather long hairs. 



VIS'CE-RA (Lat. viscus). The in- 

 ternal organs of the body. 



