Definition of pseudopupa in US English:

pseudopupa

noun

Entomology
  • In oil and blister beetles: a larval instar which resembles a pupa in being immobile and coarctate but is followed by another (apodous) larval stage. In certain other insects (e.g. thrips, whiteflies, mealy bugs) and mites: a quiescent, non-feeding larval stage preceding the emergence of the adult. Also: an abnormal or mutant form resembling a pupa but incapable of further development.

Origin

Late 19th century. From pseudo- + pupa.

Pronunciation

pseudopupa

/ˈs(j)uːdəʊˌpjuːpə/