A. Richter, Francisco Hita Garcia, R. Keller, J. Billen, Julian Katzke, B. Boudinot, E. Economo, R. Beutel
{"title":"刺刺原蜂的头部解剖(膜翅目:蚁科:刺刺原蜂科)及其下颌运动假说","authors":"A. Richter, Francisco Hita Garcia, R. Keller, J. Billen, Julian Katzke, B. Boudinot, E. Economo, R. Beutel","doi":"10.25849/MYRMECOL.NEWS_031:085","DOIUrl":null,"url":null,"abstract":"The hypogaeic ant subfamilies Leptanillinae and Martialinae likely form the sister group to the remainder of the extant Formicidae. In order to increase the knowledge of anatomy and functional morphology of these unusual and phylogenetically crucial ants, we document and describe in detail the cranium of a leptanilline, Protanilla lini Terayama, 2009. The mandibular articulation of the species differs greatly from that of other ants studied so far, and clearly represents a derived condition. We propose a mode of movement for the specialized mandibles that involves variable rotation and sophisticated locking mechanisms. While a wide opening gape and a unique articulation are characteristics of the mandibular movement of P. lini, the observed condition differs from the trap-jaw mechanisms occurring in other groups of ants, and we cannot, at present, confirm such a functional configuration. Protanilla lini displays hardly any plesiomorphies relative to the poneroformicine ants, with the possible exception of the absence of the torular apodeme. Instead, the species is characterized by a suite of apomorphic features related to its hypogaeic and specialized predatory lifestyle. This includes the loss of eyes and optic neuropils, a pronouncedly prognathous head, and the derived mandibular articulation. The present study is an additional stepping-stone on our way to reconstructing the cephalic ground plan of ants and will contribute to our understanding of ant evolution.","PeriodicalId":49787,"journal":{"name":"Myrmecological News","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":"{\"title\":\"The head anatomy of Protanilla lini (Hymenoptera: Formicidae: Leptanillinae), with a hypothesis of their mandibular movement\",\"authors\":\"A. Richter, Francisco Hita Garcia, R. Keller, J. Billen, Julian Katzke, B. Boudinot, E. Economo, R. Beutel\",\"doi\":\"10.25849/MYRMECOL.NEWS_031:085\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The hypogaeic ant subfamilies Leptanillinae and Martialinae likely form the sister group to the remainder of the extant Formicidae. In order to increase the knowledge of anatomy and functional morphology of these unusual and phylogenetically crucial ants, we document and describe in detail the cranium of a leptanilline, Protanilla lini Terayama, 2009. The mandibular articulation of the species differs greatly from that of other ants studied so far, and clearly represents a derived condition. We propose a mode of movement for the specialized mandibles that involves variable rotation and sophisticated locking mechanisms. While a wide opening gape and a unique articulation are characteristics of the mandibular movement of P. lini, the observed condition differs from the trap-jaw mechanisms occurring in other groups of ants, and we cannot, at present, confirm such a functional configuration. Protanilla lini displays hardly any plesiomorphies relative to the poneroformicine ants, with the possible exception of the absence of the torular apodeme. Instead, the species is characterized by a suite of apomorphic features related to its hypogaeic and specialized predatory lifestyle. This includes the loss of eyes and optic neuropils, a pronouncedly prognathous head, and the derived mandibular articulation. The present study is an additional stepping-stone on our way to reconstructing the cephalic ground plan of ants and will contribute to our understanding of ant evolution.\",\"PeriodicalId\":49787,\"journal\":{\"name\":\"Myrmecological News\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2021-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Myrmecological News\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.25849/MYRMECOL.NEWS_031:085\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENTOMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Myrmecological News","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.25849/MYRMECOL.NEWS_031:085","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
The head anatomy of Protanilla lini (Hymenoptera: Formicidae: Leptanillinae), with a hypothesis of their mandibular movement
The hypogaeic ant subfamilies Leptanillinae and Martialinae likely form the sister group to the remainder of the extant Formicidae. In order to increase the knowledge of anatomy and functional morphology of these unusual and phylogenetically crucial ants, we document and describe in detail the cranium of a leptanilline, Protanilla lini Terayama, 2009. The mandibular articulation of the species differs greatly from that of other ants studied so far, and clearly represents a derived condition. We propose a mode of movement for the specialized mandibles that involves variable rotation and sophisticated locking mechanisms. While a wide opening gape and a unique articulation are characteristics of the mandibular movement of P. lini, the observed condition differs from the trap-jaw mechanisms occurring in other groups of ants, and we cannot, at present, confirm such a functional configuration. Protanilla lini displays hardly any plesiomorphies relative to the poneroformicine ants, with the possible exception of the absence of the torular apodeme. Instead, the species is characterized by a suite of apomorphic features related to its hypogaeic and specialized predatory lifestyle. This includes the loss of eyes and optic neuropils, a pronouncedly prognathous head, and the derived mandibular articulation. The present study is an additional stepping-stone on our way to reconstructing the cephalic ground plan of ants and will contribute to our understanding of ant evolution.
期刊介绍:
Taxonomic manuscripts with isolated species descriptions are generally discouraged, especially for genera with large numbers of undescribed species; it lies at the discretion of the editorial team whether such manuscripts are considered. Papers on new distribution records will be considered if the new records are sufficiently important or unexpected from a biogeographical perspective. Such papers could, for example, discuss relevant biological/ecological data and/or biogeographical implications such as analysis by species-distribution modelling.
In detail, research areas covered by Myrmecological News include: behaviour; biogeography and faunistics; biological-pest control; chemical ecology; climate-change biology; cognition and learning; comparative and functional morphology; community ecology; conservation biology and bioindication; cytogenetics; ecology and evolution of (endo)symbioses; ecosystem (dis)services; foraging strategies; fossils; fragmentation ecology; genomics; histology; immune research; (integrative) taxonomy; interspecific hybridisation; invasion biology; life-history research; methodology in community quantification; national checklists; neurobiology; niche ecology; orientation and navigation; phenology; phylogeny and phylogeography; population genetics; sensory physiology; social evolution; social parasitism; sociogenomics; stable isotopes; tools for routine identification.