GLOSSARY OF TERMS USP:D IX DIPTEROLOGY 493 



VibrissEe — The \avge bristles arising from the vibrissa! angles at the sides 

 of the mouth in many Cyclorrhaphous Diptera. This term has been mis- 

 applied to include the bristles sometimes found on the facial ridges. 



Vibrissal angles — The more or less rounded angles formed by the facial ridges 

 just above the oral margin. 



Viviparous — Bringing forth living young. 



