Phasmid Study Group

An ovipositor whichis formed by elongation of the operculum (8th sternite) and lamina supraanalis (11th tergite); examples occur in Heteropterygini, Obrimini, some Eurycanthinae, and some Necrosciinae. It is analogous to that found in several Dipteran groups where the oviscapt is formed by a modified 7th sternite and 7th tergite.