Chartocerus sp. (Hymenoptera: Signiphoridae) and Pachyneuron crassiculme (Hymenoptera: Pteromalidae) Are Obligate Hyperparasitoids of Diaphorencyrtus aligarhensis (Hymenoptera: Encyrtidae) and Possibly Tamarixia radiata (Hymenoptera: Eulophidae)

Allison Bistline-East, Mark S. Hoddle


Two species of suspected hyperparasitoids, Chartocerus sp. and Pachyneuron crassiculme, emerged from parasitized Diaphorina citri nymphs collected in Punjab Pakistan over 15-22 Apr 2013. Exposure tests conducted in quarantine on D. citri nymphs parasitized by Tamarixia radiata and Diaphorencyrtus aligarhensis, as well as unparasitized D. citri nymphs, confirmed that Chartocerus sp. and P. crassiculme are hyperparasitoids. Both Chartocerus sp. and P. crassiculme successfully reproduced on D. aligarhensis, with one instance of P. crassiculme reproducing on T. radiata. There was no emergence from unparasitized D. citri.


Dos especies de hiperparasitoides sospechosos, Chartocerus sp. y Pachyneuron crassiculme, emergieron de ninfas parasitadas de Diaphorina citri recolectadas en Punjab Pakistán del 15 al 22 de abril del 2013. Las pruebas de la exposición realizada en cuarentena sobre ninfas de D. citri parasitadas por Tamarixia radiata y Diaphorencyrtus aligarhensis, así como ninfas de D. citri no parasitadas confirmaron que Chartocerus sp. y P. crassiculme son hiperparasitoides. Tanto Chartocerus sp. y P. crassiculme se reprodujeron con éxito sobre D. aligarhensis, con un caso de P. crassiculme reproducido sobre T. radiata. No hubo emergencia de parasitos de las ninfas de D. citri no parasitidas.


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choice test; no-choice test; quarantine

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