On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder

Adult head structures of Lepicerus inaequalis were examined in detail and interpreted functionally and phylogenetically. The monogeneric family clearly belongs to Myxophaga. A moveable process on the left mandible is an autapomorphy of the suborder. Even though Lepiceridae is the "basal" s...

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Main Authors: Eric ANTON, Rolf G. BEUTEL
Format: Article
Language:English
Published: Institute of Entomology, Biology Centre, Czech Academy of Science 2006-01-01
Series:European Journal of Entomology
Subjects:
Online Access:https://www.eje.cz/artkey/eje-200601-0014_On_the_head_morphology_of_Lepiceridae_Coleoptera_Myxophaga_and_the_systematic_position_of_the_family_and_sub.php
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author Eric ANTON
Rolf G. BEUTEL
author_facet Eric ANTON
Rolf G. BEUTEL
author_sort Eric ANTON
collection DOAJ
description Adult head structures of Lepicerus inaequalis were examined in detail and interpreted functionally and phylogenetically. The monogeneric family clearly belongs to Myxophaga. A moveable process on the left mandible is an autapomorphy of the suborder. Even though Lepiceridae is the "basal" sistergroup of the remaining three myxophagan families, it is likely the group which has accumulated most autapomorphic features, e.g. tuberculate surface structure, internalised antennal insertion, and a specific entognathous condition. Adults of Lepiceridae and other myxophagan groups possess several features which are also present in larvae (e.g., premental papillae, semimembranous mandibular lobe). This is probably related to a very similar life style and has nothing to do with "desembryonisation". Lepiceridae and other myxophagans share a complex and, likely, derived character of the feeding apparatus with many polyphagan groups (e.g., Staphyliniformia). The mandibles are equipped with large molae and setal brushes. The latter interact with hairy processes or lobes of the epi- and hypopharynx. This supports a sistergroup relationship between both suborders.
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spelling doaj.art-214c70637a1b4f1f94ed81ae910ae2092022-12-21T19:40:18ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292006-01-011031859510.14411/eje.2006.014eje-200601-0014On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborderEric ANTON0Rolf G. BEUTEL1Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, FSU Jena, 07743 Jena, Germany; e-mails: eric_anton@web.de, b5bero@rz.uni-jena.deInstitut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, FSU Jena, 07743 Jena, Germany; e-mails: eric_anton@web.de, b5bero@rz.uni-jena.deAdult head structures of Lepicerus inaequalis were examined in detail and interpreted functionally and phylogenetically. The monogeneric family clearly belongs to Myxophaga. A moveable process on the left mandible is an autapomorphy of the suborder. Even though Lepiceridae is the "basal" sistergroup of the remaining three myxophagan families, it is likely the group which has accumulated most autapomorphic features, e.g. tuberculate surface structure, internalised antennal insertion, and a specific entognathous condition. Adults of Lepiceridae and other myxophagan groups possess several features which are also present in larvae (e.g., premental papillae, semimembranous mandibular lobe). This is probably related to a very similar life style and has nothing to do with "desembryonisation". Lepiceridae and other myxophagans share a complex and, likely, derived character of the feeding apparatus with many polyphagan groups (e.g., Staphyliniformia). The mandibles are equipped with large molae and setal brushes. The latter interact with hairy processes or lobes of the epi- and hypopharynx. This supports a sistergroup relationship between both suborders.https://www.eje.cz/artkey/eje-200601-0014_On_the_head_morphology_of_Lepiceridae_Coleoptera_Myxophaga_and_the_systematic_position_of_the_family_and_sub.phplepiceridaehead morphologysystematic positionfunction
spellingShingle Eric ANTON
Rolf G. BEUTEL
On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
European Journal of Entomology
lepiceridae
head morphology
systematic position
function
title On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
title_full On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
title_fullStr On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
title_full_unstemmed On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
title_short On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
title_sort on the head morphology of lepiceridae coleoptera myxophaga and the systematic position of the family and suborder
topic lepiceridae
head morphology
systematic position
function
url https://www.eje.cz/artkey/eje-200601-0014_On_the_head_morphology_of_Lepiceridae_Coleoptera_Myxophaga_and_the_systematic_position_of_the_family_and_sub.php
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