Pupal-adult parasitism of the coconut hispine beetle by the koinobiont pupal parasitoid Tetrastichus brontispae

•Laboratory experiments were conducted to determine if T. brontispae parasitizes pupal hosts with a koinobiont developmental strategy.•This is the first demonstration in endo-pupal parasitoids that parasitoid eggs laid in host pupae developed in mummified pupae or during the host’s transition from pupa to adult and in adult host abdomens.•Beetle host adults emerged from parasitized pupae died within 10 days of emergence without reproducing, due to parasitism, suggesting that parasitism is an important factor in adult mortality of B. longissima.