A triangular sclerite, appearing as a more or less triangular segment behind the pronotum. The scutellum is clearly visible in the orders Heteroptera (true bugs) and Coleoptera (beetles), and in some members of the suborder Homoptera (cicadas).
SCUTELLUM
Meaning of SCUTELLUM in English
English glossary of entomology and crop protection. Английский глоссарий энтомологии и защиты растений. 2012