A re-evaluation of the milliped genus Motyxia Chamberlin : with a re-diagnosis of the tribe Xystocheirini and remarks on the bioluminescence (Polydesmida: Xystodesmidae)

  • Motyxia Chamberlin is comprised of eight species of bioluminescent xystocheirine millipeds in which the gonopodal solenomere arises at different positions, from basally and subbasally on the acropodite to being fused with the companion acropodal branch and detaching proximad or near midlength. Previous synonymies of Amplocheir Chamberlin and LuminodeslnllS Loomis and Davenport under Motyxia are confirmed as is its assignment to the tribe Xystocheirini, which is redefined. Component species are 111. Iwnw Chamberlin, the type species, monica Chamberlin, sequoiae (Loomis and Davenport), tularea (Chamberlin), sequoia (Chamberlin), pior Chamberlin, porrecta Causey and Tiemann, and tiemanni Causey. Motyxia sequoia is comprised oftwo races, the nominate and sequoia alia Causey and Tiemann; sequoia ollae Causey and Tiemann is properly a subspecies of tularea. 1I1otyxiapiorform secea is an invalid name without standing in nomenclature, and M. tejona Chamberlin, and M. expansa and exilis, both by Loomis, are placed in synonymy under M. monica, the oldest name for the southernmost species, as Polydesllws dissectus Wood is referrable to Xystocheir Cook. The bioluminescence is a continuous, neon-white glow of the entire dorsal surface including the antennae and legs. Its visibility at night suggests a warning function analogous to aposematic coloration. The phenomenon may observe a circadian rhythm, and controlled photoperiod experimentation may be productive.

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Metadaten
Author:Rowland M. Shelley
URN:urn:nbn:de:hebis:30-110820
Parent Title (English):Insecta mundi : a journal of world insect systematics
Publisher:Center for Systematic Entomology
Place of publication:Gainesville, Fla.
Document Type:Article
Language:English
Date of Publication (online):2011/07/27
Year of first Publication:1997
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2011/07/27
Volume:11
Issue:3-4
Page Number:21
First Page:331
Last Page:351
Source:Gainesville : Insecta Mundi 11:3-4, S. 331-351
HeBIS-PPN:355492873
Institutes:keine Angabe Fachbereich / Extern
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie)
Sammlungen:Sammlung Biologie / Sondersammelgebiets-Volltexte
Zeitschriften / Jahresberichte:Insecta Mundi / Insecta Mundi, Volume 11 (1997)
:urn:nbn:de:hebis:30:3-333596
Licence (German):License LogoDeutsches Urheberrecht