Cryptic Diversity in the Aphid-Parasitizing Wasp Protaphidius nawaii (Hymenoptera: Braconidae): Discovery of Two Attendant-Ant-Specific mtDNA Lineages

Yamamoto, Tetsuya; Hasegawa, Hiroki; Nakase, Yuta; Komatsu, Takashi; Itino, Takao

doi:10.2108/zs190093

Zoological Science

2020

DOI: 10.2108/zs190093

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Cryptic Diversity in the Aphid-Parasitizing Wasp Protaphidius nawaii (Hymenoptera: Braconidae): Discovery of Two Attendant-Ant-Specific mtDNA Lineages

Tetsuya Yamamoto

Hiroki Hasegawa

Yuta Nakase

et al.

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

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Cited by 2 publications

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“…Stomaphis japonica is distributed in Japan, China, and Korea, and uses certain Quercus (L.) (Fagaceae, Fagales) species as host plants ( Takahashi 1960 , Seo 1994 , Qiao and Zhang 1999 , Takada 2008 , Blackman and Eastop 2020 , Yamamoto et al 2020a , 2020b ). The first record of S. japonica (as S. quercus japonica ) is a description of apterous and alate viviparous females on Q. acutissima (Carruth) by Takahashi (1960) .…”

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Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

Yamamoto

Hattori

Itino

2020

Journal of Insect Science

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About 10% of aphid species show host alternation. These aphids migrate between primary and secondary host plant species in spring and autumn. Host alternation has not been observed in subfamily Lachninae, although it has been suggested on the basis of circumstantial evidence that Stomaphis japonica (Takahashi) may alternate its host between Quercus serrata (Murray) and Quercus acutissima (Carruth). However, a molecular phylogenetic study has indicated that the Stomaphis individuals feeding on these two plant species belong to two different lineages and aphids feeding on Q. acutissima and Pinus densiflora (Sieb. & Zucc.) belong to the same lineage. Here, we examined host alternation in Stomaphis species by comparing molecular phylogenetic identities, morphological features, and life cycles. The molecular analysis and morphological examination showed that aphids feeding on Q. acutissima were the same as those feeding on P. densiflora, whereas aphids feeding on Q. serrata were different from those feeding on Q. acutissima or on P. densiflora. Furthermore, winged aphids were observed on both Q. acutissima and P. densiflora in autumn, but we did not observe winged aphids on Q. serrata. These results indicate that Stomaphis (Walker) individuals feeding on Q. serrata and Q. acutissima belong to two species, one that feeds year-round on Q. serrata, and another, heteroecious species that feeds on P. densiflora as a primary host and on Q. acutissima as a secondary host. This study documents host alternation in subfamily Lachninae for the first time and discusses the acquisition of host alternation by Stomaphis from evolutionary and ecological perspectives.

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Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

Yamamoto

Hattori

Itino

2020

Journal of Insect Science

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An alternative host searching strategy found in the subfamily Hybrizontinae (Hymenoptera, Ichneumonidae)

Hisasue¹,

Konishi²,

Takashino³

2023

JHR

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The present study reports the oviposition behavior of the ant parasitoid wasp, Ghilaromma orientalis, on an undescribed ant species from Lasius fuliginosus species group in Japan, illustrated by clear photographs. Previously, the oviposition behavior in the subfamily Hybrizontinae had been limited to species hovering on an ant trail and attacking larvae carried by worker ants. In contrast, in G. orientalis, whose oviposition behavior had not been reported to date, the wasp hung on the grass growing along the ants’ trail by its hind legs with its head down, and when workers with larvae pass by, directed its abdomen toward the larvae with its hind legs remaining on the grass. Our findings suggest that the subfamily Hybrizontinae employs two host-searching strategies—an active strategy previously known and the ambush-type host-searching strategy employed by G. orientalis. The ambush-type strategy affords G. orientalis the advantage of laying eggs in a narrow environment where wasps cannot fly without being noticed by ants. Moreover, by avoiding detection through ambush tactics, wasps are increasing their chance for attack, as ants continue to transport their larvae. However, the search range of wasps is reduced, which may limit the opportunities for parasitization. Additionally, while Lasius nipponensis has been observed as the sole known host of G. orientalis, the oviposition behavior has now been observed in an undescribed species of L. fuliginosus group, suggesting that G. orientalis may have a subgenus-specific host range.

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Cryptic Diversity in the Aphid-Parasitizing Wasp Protaphidius nawaii (Hymenoptera: Braconidae): Discovery of Two Attendant-Ant-Specific mtDNA Lineages

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 2 publications

References 16 publications

Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

An alternative host searching strategy found in the subfamily Hybrizontinae (Hymenoptera, Ichneumonidae)

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Cryptic Diversity in the Aphid-Parasitizing Wasp Protaphidius nawaii (Hymenoptera: Braconidae): Discovery of Two Attendant-Ant-Specific mtDNA Lineages

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 2 publications

References 16 publications

Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

Seasonal Migration in the Aphid Genus Stomaphis (Hemiptera: Aphididae): Discovery of Host Alternation Between Woody Plants in Subfamily Lachninae

﻿An alternative host searching strategy found in the subfamily Hybrizontinae (Hymenoptera, Ichneumonidae)

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An alternative host searching strategy found in the subfamily Hybrizontinae (Hymenoptera, Ichneumonidae)