Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)

A new species of Microgastrinae (Hymenoptera: Braconidae) parasitoid wasp, Microgaster godzilla Fernandez-Triana & Kamino, is described from Japan. From a biological and morphological perspective this is a very unusual species. It represents only the third known microgastrine to be aquat...

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Main Authors: Jose Fernandez-Triana, Tetsuyuki Kamino, Kaoru Maeto, Yutaka Yoshiyasu, Norio Hirai
Format: Article
Language:English
Published: Pensoft Publishers 2020-10-01
Series:Journal of Hymenoptera Research
Online Access:https://jhr.pensoft.net/article/56162/download/pdf/
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author Jose Fernandez-Triana
Tetsuyuki Kamino
Kaoru Maeto
Yutaka Yoshiyasu
Norio Hirai
author_facet Jose Fernandez-Triana
Tetsuyuki Kamino
Kaoru Maeto
Yutaka Yoshiyasu
Norio Hirai
author_sort Jose Fernandez-Triana
collection DOAJ
description A new species of Microgastrinae (Hymenoptera: Braconidae) parasitoid wasp, Microgaster godzilla Fernandez-Triana & Kamino, is described from Japan. From a biological and morphological perspective this is a very unusual species. It represents only the third known microgastrine to be aquatic, and the first one to be found entering the water. The female wasp searches for its hosts, aquatic larvae of Elophila turbata (Lepidoptera: Crambidae), mostly by walking over floating plants, but occasionally diving underwater for several seconds to force the larva out of its case, when it is quickly parasitized (parasitization was always observed above water). The unique searching behaviour of M. godzilla as well as its parasitization of aquatic larvae was filmed and it is presented here. The wasp has simple tarsal claws, which are elongate and strongly curved, similar to those found in the related genus Hygroplitis; they seem to represent an adaptation for gripping to the substrate when entering the water. The new species is described based on morphological, molecular (DNA barcoding), biological and ethological data. Additionally, we provide detailed diagnoses to recognize M. godzilla from all other described species of Microgaster and Hygroplitis in the Palearctic, Nearctic and Oriental regions.
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spelling doaj.art-893ce82f0529495f834288141c4c28ad2022-12-22T01:09:08ZengPensoft PublishersJournal of Hymenoptera Research1314-26072020-10-0179152610.3897/jhr.79.5616256162Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)Jose Fernandez-Triana0Tetsuyuki Kamino1Kaoru Maeto2Yutaka Yoshiyasu3Norio Hirai4Canadian National Collection of insectsOsaka Prefecture UniversityKobe UniversityOsaka Prefecture UniversityOsaka Prefecture UniversityA new species of Microgastrinae (Hymenoptera: Braconidae) parasitoid wasp, Microgaster godzilla Fernandez-Triana & Kamino, is described from Japan. From a biological and morphological perspective this is a very unusual species. It represents only the third known microgastrine to be aquatic, and the first one to be found entering the water. The female wasp searches for its hosts, aquatic larvae of Elophila turbata (Lepidoptera: Crambidae), mostly by walking over floating plants, but occasionally diving underwater for several seconds to force the larva out of its case, when it is quickly parasitized (parasitization was always observed above water). The unique searching behaviour of M. godzilla as well as its parasitization of aquatic larvae was filmed and it is presented here. The wasp has simple tarsal claws, which are elongate and strongly curved, similar to those found in the related genus Hygroplitis; they seem to represent an adaptation for gripping to the substrate when entering the water. The new species is described based on morphological, molecular (DNA barcoding), biological and ethological data. Additionally, we provide detailed diagnoses to recognize M. godzilla from all other described species of Microgaster and Hygroplitis in the Palearctic, Nearctic and Oriental regions.https://jhr.pensoft.net/article/56162/download/pdf/
spellingShingle Jose Fernandez-Triana
Tetsuyuki Kamino
Kaoru Maeto
Yutaka Yoshiyasu
Norio Hirai
Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
Journal of Hymenoptera Research
title Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
title_full Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
title_fullStr Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
title_full_unstemmed Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
title_short Microgaster godzilla (Hymenoptera, Braconidae, Microgastrinae), an unusual new species from Japan which dives underwater to parasitize its caterpillar host (Lepidoptera, Crambidae, Acentropinae)
title_sort microgaster godzilla hymenoptera braconidae microgastrinae an unusual new species from japan which dives underwater to parasitize its caterpillar host lepidoptera crambidae acentropinae
url https://jhr.pensoft.net/article/56162/download/pdf/
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