Proboscis. The long, protruding mouthpart structures of an insect with piercing-sucking mouthparts. This type of mouthparts can be found in the suborders Heteroptera (true bugs) and Homoptera (cicadas and others).
BEAK
Meaning of BEAK in English
English glossary of entomology and crop protection. Английский глоссарий энтомологии и защиты растений. 2012