The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae)
Rhopalosomatidae are an unusual family of wasps (Hymenoptera: Aculeata) comprising less than 100 species found in the tropics and subtropics of all continents except Europe and Antarctica. Whereas some species resemble nocturnal Ichneumonidae, others might be mistaken for spider wasps or different g...
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ftleibnizopen:oai:oai.leibnizopen.de:1G31PYkBdbrxVwz6U-oZ 2023-07-30T03:59:25+02:00 The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) Lohrmann, Volker Engel, Michael S. 2017 https://repository.publisso.de/resource/frl:6406033 https://doi.org/10.5194/fr-20-239-2017 eng eng https://creativecommons.org/licenses/by/3.0/ Fossil record, 20(2): 239-244 2017 ftleibnizopen https://doi.org/10.5194/fr-20-239-2017 2023-07-10T12:34:02Z Rhopalosomatidae are an unusual family of wasps (Hymenoptera: Aculeata) comprising less than 100 species found in the tropics and subtropics of all continents except Europe and Antarctica. Whereas some species resemble nocturnal Ichneumonidae, others might be mistaken for spider wasps or different groups of brachypterous Hymenoptera. Despite their varied morphology, all members of the family supposedly develop as larval ectoparasitoids of crickets (Orthoptera: Grylloidea). Here, we report on the first record of a fossil rhopalosomatid larva which was discovered in mid-Cretaceous amber from northern Myanmar (Burma). The larva is attached to the lateral side of a cricket between the metafemur and the abdomen, impacting the natural position of the hind leg, exactly as documented for modern species. Additionally, the larval gestalt is strikingly similar to those of extant forms. These observations imply that this behavioral specialization, e.g., host association and positioning on host, likely evolved in the stem of the family at least 100 million years ago. Other/Unknown Material Antarc* Antarctica LeibnizOpen (The Leibniz Association) Fossil Record 20 2 239 244 |
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English |
description |
Rhopalosomatidae are an unusual family of wasps (Hymenoptera: Aculeata) comprising less than 100 species found in the tropics and subtropics of all continents except Europe and Antarctica. Whereas some species resemble nocturnal Ichneumonidae, others might be mistaken for spider wasps or different groups of brachypterous Hymenoptera. Despite their varied morphology, all members of the family supposedly develop as larval ectoparasitoids of crickets (Orthoptera: Grylloidea). Here, we report on the first record of a fossil rhopalosomatid larva which was discovered in mid-Cretaceous amber from northern Myanmar (Burma). The larva is attached to the lateral side of a cricket between the metafemur and the abdomen, impacting the natural position of the hind leg, exactly as documented for modern species. Additionally, the larval gestalt is strikingly similar to those of extant forms. These observations imply that this behavioral specialization, e.g., host association and positioning on host, likely evolved in the stem of the family at least 100 million years ago. |
author |
Lohrmann, Volker Engel, Michael S. |
spellingShingle |
Lohrmann, Volker Engel, Michael S. The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
author_facet |
Lohrmann, Volker Engel, Michael S. |
author_sort |
Lohrmann, Volker |
title |
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
title_short |
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
title_full |
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
title_fullStr |
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
title_full_unstemmed |
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
title_sort |
wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (hymenoptera: rhopalosomatidae) |
publishDate |
2017 |
url |
https://repository.publisso.de/resource/frl:6406033 https://doi.org/10.5194/fr-20-239-2017 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Fossil record, 20(2): 239-244 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.5194/fr-20-239-2017 |
container_title |
Fossil Record |
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20 |
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2 |
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239 |
op_container_end_page |
244 |
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1772810225668063232 |