Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae

Autores
Fiorini de Magalhaes, Ivan Luiz; Pérez González, Abel; Labarque, Facundo Martín; Carboni, Martín Federico; Hammel, Jörg U.; Kunz, Robin; Ramirez, Martin Javier; Solórzano Kraemer, Mónica M.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recluse or violin spiders in the genus Loxosceles (Scytodoidea: Sicariidae) are a diverse group (~140 extant species) including medically important species and distributed mainly in the Americas, Africa, and the Mediterranean region. In addition, this genus includes three fossil species from Miocene Dominican amber. Here we revise the taxonomy of these fossil species by examining, imaging and re-describing their type specimens. We find that L. defecta Wunderlich, 1988 and L. deformis Wunderlich, 1988 are bona fide members of the genus and report additional characters overlooked in their original descriptions. We further study the holotype of L. aculicaput Wunderlich, 2004 using synchrotron radiation micro-computed tomography to reveal previously unknown morphological details hidden by fissures in the amber. We found several characters inconsistent with Loxosceles but consistent with Drymusa (false violin spiders; Scytodoidea: Drymusidae), such as three claws, well-developed podotarsite, and a broad colulus. This suggests the species is misplaced in Loxosceles. To test this hypothesis, we estimated a total-evidence phylogeny of the superfamily Scytodoidea including extant and fossil taxa, morphological data, traditional molecular markers, and sequences of ultra-conserved elements. The results show unambiguously that L. aculicaput belongs to Drymusa and is a close relative of extant species of the genus inhabiting the Greater Antilles. Therefore, we here transfer this species to Drymusa, establishing a new combination and new family assignment. Drymusa aculicaput comb. nov. represents the first known fossil Drymusidae and shows that crown members of this genus already existed in the Miocene.
Fil: Fiorini de Magalhaes, Ivan Luiz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Pérez González, Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Labarque, Facundo Martín. Universidade Federal do São Carlos; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Carboni, Martín Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Hammel, Jörg U.. Helmholtz-zentrum Hereon Gmbh; Alemania
Fil: Kunz, Robin. Senckenberg Research Institute And Natural History Muse; Alemania
Fil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Solórzano Kraemer, Mónica M.. Senckenberg Research Institute And Natural History Muse; Alemania
Materia
DRYMUSA
MICRO-CT
MIOCENE
UCE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/218191
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/218191
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil DrymusidaeFiorini de Magalhaes, Ivan LuizPérez González, AbelLabarque, Facundo MartínCarboni, Martín FedericoHammel, Jörg U.Kunz, RobinRamirez, Martin JavierSolórzano Kraemer, Mónica M.DRYMUSAMICRO-CTMIOCENEUCEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Recluse or violin spiders in the genus Loxosceles (Scytodoidea: Sicariidae) are a diverse group (~140 extant species) including medically important species and distributed mainly in the Americas, Africa, and the Mediterranean region. In addition, this genus includes three fossil species from Miocene Dominican amber. Here we revise the taxonomy of these fossil species by examining, imaging and re-describing their type specimens. We find that L. defecta Wunderlich, 1988 and L. deformis Wunderlich, 1988 are bona fide members of the genus and report additional characters overlooked in their original descriptions. We further study the holotype of L. aculicaput Wunderlich, 2004 using synchrotron radiation micro-computed tomography to reveal previously unknown morphological details hidden by fissures in the amber. We found several characters inconsistent with Loxosceles but consistent with Drymusa (false violin spiders; Scytodoidea: Drymusidae), such as three claws, well-developed podotarsite, and a broad colulus. This suggests the species is misplaced in Loxosceles. To test this hypothesis, we estimated a total-evidence phylogeny of the superfamily Scytodoidea including extant and fossil taxa, morphological data, traditional molecular markers, and sequences of ultra-conserved elements. The results show unambiguously that L. aculicaput belongs to Drymusa and is a close relative of extant species of the genus inhabiting the Greater Antilles. Therefore, we here transfer this species to Drymusa, establishing a new combination and new family assignment. Drymusa aculicaput comb. nov. represents the first known fossil Drymusidae and shows that crown members of this genus already existed in the Miocene.Fil: Fiorini de Magalhaes, Ivan Luiz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Pérez González, Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Labarque, Facundo Martín. Universidade Federal do São Carlos; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Carboni, Martín Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Hammel, Jörg U.. Helmholtz-zentrum Hereon Gmbh; AlemaniaFil: Kunz, Robin. Senckenberg Research Institute And Natural History Muse; AlemaniaFil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Solórzano Kraemer, Mónica M.. Senckenberg Research Institute And Natural History Muse; AlemaniaPensoft Publishers2022-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/218191Fiorini de Magalhaes, Ivan Luiz; Pérez González, Abel; Labarque, Facundo Martín; Carboni, Martín Federico; Hammel, Jörg U.; et al.; Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae; Pensoft Publishers; Arthropod Systematics & Phylogeny; 80; 9-2022; 541-5591863-72211864-8312CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://arthropod-systematics.arphahub.com/article/86008/info:eu-repo/semantics/altIdentifier/doi/10.3897/asp.80.e86008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:15:53Zoai:ri.conicet.gov.ar:11336/218191instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:15:53.937CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
title Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
spellingShingle Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
Fiorini de Magalhaes, Ivan Luiz
DRYMUSA
MICRO-CT
MIOCENE
UCE
title_short Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
title_full Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
title_fullStr Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
title_full_unstemmed Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
title_sort Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
dc.creator.none.fl_str_mv Fiorini de Magalhaes, Ivan Luiz
Pérez González, Abel
Labarque, Facundo Martín
Carboni, Martín Federico
Hammel, Jörg U.
Kunz, Robin
Ramirez, Martin Javier
Solórzano Kraemer, Mónica M.
author Fiorini de Magalhaes, Ivan Luiz
author_facet Fiorini de Magalhaes, Ivan Luiz
Pérez González, Abel
Labarque, Facundo Martín
Carboni, Martín Federico
Hammel, Jörg U.
Kunz, Robin
Ramirez, Martin Javier
Solórzano Kraemer, Mónica M.
author_role author
author2 Pérez González, Abel
Labarque, Facundo Martín
Carboni, Martín Federico
Hammel, Jörg U.
Kunz, Robin
Ramirez, Martin Javier
Solórzano Kraemer, Mónica M.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv DRYMUSA
MICRO-CT
MIOCENE
UCE
topic DRYMUSA
MICRO-CT
MIOCENE
UCE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recluse or violin spiders in the genus Loxosceles (Scytodoidea: Sicariidae) are a diverse group (~140 extant species) including medically important species and distributed mainly in the Americas, Africa, and the Mediterranean region. In addition, this genus includes three fossil species from Miocene Dominican amber. Here we revise the taxonomy of these fossil species by examining, imaging and re-describing their type specimens. We find that L. defecta Wunderlich, 1988 and L. deformis Wunderlich, 1988 are bona fide members of the genus and report additional characters overlooked in their original descriptions. We further study the holotype of L. aculicaput Wunderlich, 2004 using synchrotron radiation micro-computed tomography to reveal previously unknown morphological details hidden by fissures in the amber. We found several characters inconsistent with Loxosceles but consistent with Drymusa (false violin spiders; Scytodoidea: Drymusidae), such as three claws, well-developed podotarsite, and a broad colulus. This suggests the species is misplaced in Loxosceles. To test this hypothesis, we estimated a total-evidence phylogeny of the superfamily Scytodoidea including extant and fossil taxa, morphological data, traditional molecular markers, and sequences of ultra-conserved elements. The results show unambiguously that L. aculicaput belongs to Drymusa and is a close relative of extant species of the genus inhabiting the Greater Antilles. Therefore, we here transfer this species to Drymusa, establishing a new combination and new family assignment. Drymusa aculicaput comb. nov. represents the first known fossil Drymusidae and shows that crown members of this genus already existed in the Miocene.
Fil: Fiorini de Magalhaes, Ivan Luiz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Pérez González, Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Labarque, Facundo Martín. Universidade Federal do São Carlos; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Carboni, Martín Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Hammel, Jörg U.. Helmholtz-zentrum Hereon Gmbh; Alemania
Fil: Kunz, Robin. Senckenberg Research Institute And Natural History Muse; Alemania
Fil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Solórzano Kraemer, Mónica M.. Senckenberg Research Institute And Natural History Muse; Alemania
description Recluse or violin spiders in the genus Loxosceles (Scytodoidea: Sicariidae) are a diverse group (~140 extant species) including medically important species and distributed mainly in the Americas, Africa, and the Mediterranean region. In addition, this genus includes three fossil species from Miocene Dominican amber. Here we revise the taxonomy of these fossil species by examining, imaging and re-describing their type specimens. We find that L. defecta Wunderlich, 1988 and L. deformis Wunderlich, 1988 are bona fide members of the genus and report additional characters overlooked in their original descriptions. We further study the holotype of L. aculicaput Wunderlich, 2004 using synchrotron radiation micro-computed tomography to reveal previously unknown morphological details hidden by fissures in the amber. We found several characters inconsistent with Loxosceles but consistent with Drymusa (false violin spiders; Scytodoidea: Drymusidae), such as three claws, well-developed podotarsite, and a broad colulus. This suggests the species is misplaced in Loxosceles. To test this hypothesis, we estimated a total-evidence phylogeny of the superfamily Scytodoidea including extant and fossil taxa, morphological data, traditional molecular markers, and sequences of ultra-conserved elements. The results show unambiguously that L. aculicaput belongs to Drymusa and is a close relative of extant species of the genus inhabiting the Greater Antilles. Therefore, we here transfer this species to Drymusa, establishing a new combination and new family assignment. Drymusa aculicaput comb. nov. represents the first known fossil Drymusidae and shows that crown members of this genus already existed in the Miocene.
publishDate 2022
dc.date.none.fl_str_mv 2022-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/218191
Fiorini de Magalhaes, Ivan Luiz; Pérez González, Abel; Labarque, Facundo Martín; Carboni, Martín Federico; Hammel, Jörg U.; et al.; Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae; Pensoft Publishers; Arthropod Systematics & Phylogeny; 80; 9-2022; 541-559
1863-7221
1864-8312
CONICET Digital
CONICET
url http://hdl.handle.net/11336/218191
identifier_str_mv Fiorini de Magalhaes, Ivan Luiz; Pérez González, Abel; Labarque, Facundo Martín; Carboni, Martín Federico; Hammel, Jörg U.; et al.; Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a totalevidence phylogeny of Scytodoidea reveal the first fossil Drymusidae; Pensoft Publishers; Arthropod Systematics & Phylogeny; 80; 9-2022; 541-559
1863-7221
1864-8312
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://arthropod-systematics.arphahub.com/article/86008/
info:eu-repo/semantics/altIdentifier/doi/10.3897/asp.80.e86008
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pensoft Publishers
publisher.none.fl_str_mv Pensoft Publishers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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