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28 June 2024 Morphological and biological characteristics of Eriborus sp. (Hymenoptera: Ichneumonidae), a parasitoid wasp of Cydalima perspectalis (Lepidoptera: Crambidae)
Byung-Chan Kim, Sung-Gum Sul, Il-Kwon Park
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Abstract

The box tree moth (BTM), Cydalima perspectalis Walker, is a pest that infests various plants within the Buxus genus. Although a specific parasitoid wasp species associated with the BTM has been observed in the Republic of Korea, no research on this species has been published. Here, we describe the fundamental morphological and biological characteristics of this parasitoid. We have identified the wasp as belonging to the genus Eriborus (Hymenoptera: Ichneumonidae: Campopleginae). Eriborus sp. parasitizes within the living host body, with 1 wasp emerging from each host. The parasitism rate observed in collected BTM populations was 33.1%. The emergence rate was 87.1%, with all emerging adults being females, resulting in a sex ratio of 0. The pupal period avg 9.5 days, and the adult lifespan avg 10.5 days. Eriborus sp. parasitized BTM larvae from the first to the fourth instar and reproduced by thelytokous parthenogenesis. Eriborus sp. exhibited morphological differences compared with previously reported Eriborus species in Korea, particularly in the length of the ovipositor sheath. Additionally, the proportion of the highest similarity in nucleotide sequences of mitochondrial cytochrome oxidase I DNA was only 94.53%, rendering species identification using GenBank's mt cytochrome c oxidase 1 DNA sequences unfeasible.These data suggest that Eriborus sp. could be used as a biological control agent for managing BTM infestations.

Byung-Chan Kim, Sung-Gum Sul, and Il-Kwon Park "Morphological and biological characteristics of Eriborus sp. (Hymenoptera: Ichneumonidae), a parasitoid wasp of Cydalima perspectalis (Lepidoptera: Crambidae)," Journal of Economic Entomology 117(4), 1564-1571, (28 June 2024). https://doi.org/10.1093/jee/toae143
Received: 1 March 2024; Accepted: 10 June 2024; Published: 28 June 2024
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KEYWORDS
biological characteristic
box tree moth
morphological characteristic
parasitoid
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