New distributional and host records for the parasitoid <i>Gronotoma adachiae</i> (Hymenoptera: Figitidae: Eucoilinae) in Asia

Compared with mycorrhizal relationships, the relationships between mycoheterotrophic plants and insects have rarely been studied. Here we report a previously unknown tripartite interaction among an endangered mycoheterotrophic orchid, an orchid‐feeding fly, and a parasitoid wasp. The flowers and stems of Eulophia zollingeri were heavily attacked by Japanagromyza tokunagai (Sasakawa) (Diptera: Agromyzidae), and the parasitoid wasp Gronotoma guamensis (Yoshimoto) (Hymenoptera: Figitidae) was reared from these J. tokunagai individuals. Considering the high infestation rate of J. tokunagai, G. guamensis could be important in suppressing the J. tokunagai population, and positively affect the reproductive success of E. zollingeri.

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“…Therefore, Gronotoma spp. are considered to be potentially useful in the biological control of agromyzid pests (Buffington , ; Abe & Konishi ).…”

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confidence: 99%

First report that the wasp Gronotoma guamensis (Hymenoptera: Figitidae: Eucoilinae) parasitizes the orchid‐feeding fly Japanagromyza tokunagai in Japan

Suetsugu

Mita

2019

Entomological Science

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Liriomyza sativae (vegetable leaf miner)

2022

CABI Compendium

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Egg Maturation and Daily Progeny Production in the Parasitoid, Gronotoma micromorpha (Hymenoptera: Figitidae: Eucoilinae)

Abe

2020

Journal of Economic Entomology

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Abstract An ovigeny index, which is the initial egg load divided by the potential lifetime fecundity, was developed for the parasitoid, Gronotoma micromorpha (Perkins), on the host Liriomyza trifolii (Burgess) (Diptera: Agromyzidae). The value obtained for the index was estimated to be 0.54, based on the initial egg load (mean ± SD: 41.0 ± 13.5) observed in the present study and the lifetime fecundity (75.6 ± 32.6) estimated in a previous study. Gronotoma micromorpha was previously regarded as being strictly pro-ovigenic based on daily progeny production data; however, the findings of the present study showed that this parasitoid is prosynovigenic. A 3-d cycle in daily progeny production was previously reported to occur during the lifetime of adult females (6.6 d) in this species. The present study showed that the initial egg load is nearly equal to the total number of eggs deposited in 3 d following adult emergence. Therefore, it is considered that the mature eggs stored during the pupal stage are deposited during the first 3 d after adult emergence and that egg maturation in the adult stage starts on day 1 and requires 3 d to complete in G. micromorpha. To clarify the relationship between the daily progeny production and the initial egg load, a reproductive cycle consisting of maturation, deposition, and depletion of eggs is proposed. In G. micromorpha, the reproductive cycle is considered to occur twice during the female lifetime. Furthermore, it is proposed that other prosynovigenic parasitoid species have a similar reproductive cycle.

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New distributional and host records for the parasitoid Gronotoma adachiae (Hymenoptera: Figitidae: Eucoilinae) in Asia

Abstract: The parasitoid Gronotoma adachiae is reported from Vietnam for the first time. The vegetable leaf miner Liriomyza sativae (Diptera: Agromyzidae) is a new host record. The G. adachiae specimens collected in Yunnan Province are the second record of this parasitoid from China.

Cited by 3 publications

References 15 publications

First report that the wasp Gronotoma guamensis (Hymenoptera: Figitidae: Eucoilinae) parasitizes the orchid‐feeding fly Japanagromyza tokunagai in Japan

First report that the wasp Gronotoma guamensis (Hymenoptera: Figitidae: Eucoilinae) parasitizes the orchid‐feeding fly Japanagromyza tokunagai in Japan

Liriomyza sativae (vegetable leaf miner)

Egg Maturation and Daily Progeny Production in the Parasitoid, Gronotoma micromorpha (Hymenoptera: Figitidae: Eucoilinae)

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