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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ftdoajarticles:oai:doaj.org/article:5e0c8acdc0fa4fb2b109da1d63902ac6 2024-02-04T09:55:55+01:00 The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) V. Lohrmann M. S. Engel 2017-08-01T00:00:00Z https://doi.org/10.5194/fr-20-239-2017 https://doaj.org/article/5e0c8acdc0fa4fb2b109da1d63902ac6 EN eng Pensoft Publishers https://www.foss-rec.net/20/239/2017/fr-20-239-2017.pdf https://doaj.org/toc/2193-0066 https://doaj.org/toc/2193-0074 doi:10.5194/fr-20-239-2017 2193-0066 2193-0074 https://doaj.org/article/5e0c8acdc0fa4fb2b109da1d63902ac6 Fossil Record, Vol 20, Pp 239-244 (2017) Paleontology QE701-760 article 2017 ftdoajarticles https://doi.org/10.5194/fr-20-239-2017 2024-01-07T01:47:21Z 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. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Fossil Record 20 2 239 244 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Paleontology QE701-760 |
spellingShingle |
Paleontology QE701-760 V. Lohrmann M. S. Engel The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae) |
topic_facet |
Paleontology QE701-760 |
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. |
format |
Article in Journal/Newspaper |
author |
V. Lohrmann M. S. Engel |
author_facet |
V. Lohrmann M. S. Engel |
author_sort |
V. Lohrmann |
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) |
publisher |
Pensoft Publishers |
publishDate |
2017 |
url |
https://doi.org/10.5194/fr-20-239-2017 https://doaj.org/article/5e0c8acdc0fa4fb2b109da1d63902ac6 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Fossil Record, Vol 20, Pp 239-244 (2017) |
op_relation |
https://www.foss-rec.net/20/239/2017/fr-20-239-2017.pdf https://doaj.org/toc/2193-0066 https://doaj.org/toc/2193-0074 doi:10.5194/fr-20-239-2017 2193-0066 2193-0074 https://doaj.org/article/5e0c8acdc0fa4fb2b109da1d63902ac6 |
op_doi |
https://doi.org/10.5194/fr-20-239-2017 |
container_title |
Fossil Record |
container_volume |
20 |
container_issue |
2 |
container_start_page |
239 |
op_container_end_page |
244 |
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1789960123058225152 |