A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)

The micropolydesmoid millipede family Haplodesmidae is here recorded from Cambodia for the first time through the discovery of the first, new species of the genus Eutrichodesmus Silvestri, 1910: E. cambodiensis sp. nov. This new species is described from two limestone habitats in Kampot Province, ba...

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Main Authors: Ruttapon Srisonchai, Natdanai Likhitrakarn, Chirasak Sutcharit, Ekgachai Jeratthitikul, Warut Siriwut, Phanara Thrach, Samol Chhuoy, Peng Bun Ngor, Somsak Panha
Format: Article
Language:English
Published: Pensoft Publishers 2020-11-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/57411/download/pdf/
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author Ruttapon Srisonchai
Natdanai Likhitrakarn
Chirasak Sutcharit
Ekgachai Jeratthitikul
Warut Siriwut
Phanara Thrach
Samol Chhuoy
Peng Bun Ngor
Somsak Panha
author_facet Ruttapon Srisonchai
Natdanai Likhitrakarn
Chirasak Sutcharit
Ekgachai Jeratthitikul
Warut Siriwut
Phanara Thrach
Samol Chhuoy
Peng Bun Ngor
Somsak Panha
author_sort Ruttapon Srisonchai
collection DOAJ
description The micropolydesmoid millipede family Haplodesmidae is here recorded from Cambodia for the first time through the discovery of the first, new species of the genus Eutrichodesmus Silvestri, 1910: E. cambodiensis sp. nov. This new species is described from two limestone habitats in Kampot Province, based on abundant material. It is easily distinguished from all related congeners by the following combination of characters: body greyish-brown; limbus roundly lobulate; solenomere partially divided from acropodite by a digitiform lobe, but without hairpad. Brief remarks on the previously-proposed “pecularis-group” are provided and a second group, the “demangei-group”, is established and discussed on the basis of morphological evidence, updating the number of recognised species groups of Eutrichodesmus to two. Detailed morphological illustrations, photographs and a distribution map, as well as remarks on its habitat and mating behaviour of the new species are presented. Furthermore, the current distributions of all 55 presently-known species of Eutrichodesmus are provided and a key to all 23 species that occur in mainland Southeast Asia is given.
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spelling doaj.art-be0f319350c44142a02638f0e17bf34a2022-12-21T23:41:09ZengPensoft PublishersZooKeys1313-29702020-11-01996599110.3897/zookeys.996.5741157411A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)Ruttapon Srisonchai0Natdanai Likhitrakarn1Chirasak Sutcharit2Ekgachai Jeratthitikul3Warut Siriwut4Phanara Thrach5Samol Chhuoy6Peng Bun Ngor7Somsak Panha8Chulalongkorn UniversityMaejo UniversityChulalongkorn UniversityMahidol UniversityMahidol UniversityInland Fisheries Research and Development InstituteWonders of the Mekong ProjectWonders of the Mekong ProjectAcademy of Science, The Royal Society of ThailandThe micropolydesmoid millipede family Haplodesmidae is here recorded from Cambodia for the first time through the discovery of the first, new species of the genus Eutrichodesmus Silvestri, 1910: E. cambodiensis sp. nov. This new species is described from two limestone habitats in Kampot Province, based on abundant material. It is easily distinguished from all related congeners by the following combination of characters: body greyish-brown; limbus roundly lobulate; solenomere partially divided from acropodite by a digitiform lobe, but without hairpad. Brief remarks on the previously-proposed “pecularis-group” are provided and a second group, the “demangei-group”, is established and discussed on the basis of morphological evidence, updating the number of recognised species groups of Eutrichodesmus to two. Detailed morphological illustrations, photographs and a distribution map, as well as remarks on its habitat and mating behaviour of the new species are presented. Furthermore, the current distributions of all 55 presently-known species of Eutrichodesmus are provided and a key to all 23 species that occur in mainland Southeast Asia is given.https://zookeys.pensoft.net/article/57411/download/pdf/
spellingShingle Ruttapon Srisonchai
Natdanai Likhitrakarn
Chirasak Sutcharit
Ekgachai Jeratthitikul
Warut Siriwut
Phanara Thrach
Samol Chhuoy
Peng Bun Ngor
Somsak Panha
A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
ZooKeys
title A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
title_full A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
title_fullStr A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
title_full_unstemmed A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
title_short A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)
title_sort new micropolydesmoid millipede of the genus eutrichodesmus silvestri 1910 from cambodia with a key to species in mainland southeast asia diplopoda polydesmida haplodesmidae
url https://zookeys.pensoft.net/article/57411/download/pdf/
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