02428nas a2200277 4500008004100000022002500041245023700066210006900303260001500372300001100387490000700398520148100405653001801886653001301904653002201917653002101939653001401960653002401974653001301998653001802011653001202029100002402041700001802065700002302083856004402106 2022 eng d a1447-2600, 1445-522600aCombining mitochondrial DNA and morphological data to delineate four new millipede species and provisional assignment to the genus Apeuthes Hoffman & Keeton (Diplopoda : Spirobolida : Pachybolidae : Trigoniulinae)0 aCombining mitochondrial DNA and morphological data to delineate  c16/02/2022 a91-1120 v363 a

Hitherto, the millipede genus Apeuthes (family Pachybolidae, subfamily Trigoniulinae) was only known from three species described in Vietnam based on morphological characters. The present study uses two partial mitochondrial gene fragments (cytochrome c oxidase I (COI) and 16S ribosomal RNA) and morphology to define four new Apeuthes species from Malaysia, Thailand and Vietnam: A. fimbriatus, sp. nov., A. longeligulatus, sp. nov., A. pollex, sp. nov. and ?A. spininavis, sp. nov. The intraspecific COI sequence divergence of two Apeuthes species is 3–7% (mean: 5%) and the interspecific divergence of five species is 11–16% (mean: 13.7%). All members of the genus share unique male characters, viz the posterior gonopod telopodite with several dentate, serrate or tuberculate lamellae in a boat-like cavity or a boat-like cavity covered with spines. The delimitation of the four new species is supported by the congruence between mitochondrial DNA and morphological data. However, while the monophyly of Trigoniulinae is well supported, the relationships within this subfamily, and particularly among Apeuthes species, including the monophyly of Apeuthes, lack strong support. Therefore assignment of the four new species, and particularly of ?A. spininavis sp. nov., to the genus Apeuthes is tentative and awaits a comprehensive revision of the group.

10aDNA barcoding10aMalaysia10amitochondrial DNA10amonotypic genera10aphylogeny10aspecies delineation10aThailand10aTrigoniulinae10aVietnam1 aPimvichai, Piyatida1 aPanha, Somsak1 aBackeljau, Thierry uhttps://www.publish.csiro.au/IS/IS2103803135nas a2200241 4500008004100000022001400041245025000055210006900305260001500374300001200389490000700401520225900408653002202667653001602689653001402705653002002719653002502739100002402764700002002788700001802808700002302826856004402849 2018 eng d a1445-522600aMorphological and mitochondrial DNA data reshuffle the taxonomy of the genera Atopochetus Attems, Litostrophus Chamberlin and Tonkinbolus Verhoeff (Diplopoda: Spirobolida: Pachybolidae), with descriptions of nine new species0 aMorphological and mitochondrial DNA data reshuffle the taxonomy  c01/02/2018 a159-1950 v323 a

Species-level taxonomy and phylogeny of two genera of South-East (SE) Asian pachybolid millipedes are analysed with a combination of morphological characters and DNA sequences (two mitochondrial gene fragments: COI and 16S rRNA). Strong support is found for the genera Litostrophus Chamberlin, 1921 and Atopochetus Attems, 1953 and for a clade consisting of Litostrophus + Atopochetus. Four species of Litostrophus are recognised and (re)described: L. segregatus Chamberlin, 1921 (type species of the genus), L. scaber (Verhoeff, 1938), comb. nov., L. chamaeleon, sp. nov. and L. saraburensis, sp. nov. The genus Tonkinbolus Verhoeff, 1938 (type species T. scaber Verhoeff, 1938) is synonymised under Litostrophus. Atopochetus (type species A. rubropunctatus Attems, 1953), hitherto considered a dubious synonym of Aulacobolus Pocock, 1903, is re-instated for several species until now placed in Tonkinbolus and seven new species. All in all, 10 species of Atopochetus are (re)described: A. dollfusii (Pocock, 1893) (= Aulacobolus rubropunctatus Attems, 1938, syn. nov.), A. moulmeinensis (Pocock, 1893), A. sumatranus (Carl, 1906) (= Trachelomegalus laciniatus Attems, 1937, syn. nov.), A. anaticeps, sp. nov., A. helix, sp. nov., A. setiferus, sp. nov., A. spinimargo, sp. nov., A. truncatus, sp. nov., A. uncinatus, sp. nov. and A. weseneri, sp. nov. Three species recently included in Tonkinbolus are left incertae sedis because they are based exclusively on female type specimens: Spirobolus capucinus Porat, 1896, S. caudulanus Karsch, 1881 and S. macrurus Pocock, 1893. The results of the DNA analysis (COI and 16S rRNA) are congruent with morphological (gonopodal) characters in terms of delimitation of species of Litostrophus and Atopochetus. This is the first DNA study of SE Asian Pachybolidae and as such it provides a basis for further evolutionary and biogeographic studies of SE Asian millipedes.

10amitochondrial DNA10anew species10aphylogeny10aSouth-East Asia10aspecies delimitation1 aPimvichai, Piyatida1 aEnghoff, Henrik1 aPanha, Somsak1 aBackeljau, Thierry uhttps://www.publish.csiro.au/is/IS1705202099nas a2200241 4500008004100000022001400041245011800055210006900173260001500242300001200257490000700269520133500276653001301611653002701624653002201651653001401673653001901687653001301706100002401719700002001743700001801763856007601781 2013 eng d a1095-951300aMolecular phylogeny of the Thyropygus allevatus group of giant millipedes and some closely related groups.0 aMolecular phylogeny of the iThyropygus allevatusi group of giant c20/11/2013 a170-1830 v713 a

Giant cylindrical millipedes of the family Harpagophoridae, especially species of the genus Thyropygus, are broadly distributed in Thailand and nearby countries. They show a great deal of variation in body size, color patterns and gonopodal characters. Phylogenetic analyses of 26 nominate species from six genera in the subfamilies Harpagophorinae and Rhynchoproctinae, as well as nine new morphotypes (regarded as new species), were performed with the DNA sequences from two mitochondrial gene fragments (16S rRNA and COI). The genus Thyropygus (Harpagophorinae) was recovered as monophyletic under all analyses, whilst the representatives of Rhynchoproctinae also formed a monophyletic group. However, the analyses suggested that the tribe Gonoplectini should be elevated to a separate subfamily, Gonoplectinae. The molecular analyses were largely (but not totally) congruent with, and so supported the usefulness of, gonopodal characters for the classification and identification of harpagophorid millipedes, and additionally supported previous studies on the delimitation of species and subgroups. This is the first molecular study inside the family Harpagophoridae and provides the basis for further studies of the evolutionary processes and biogeographic patterns of millipedes in Southeast Asia.

10aendemism10aGeographical isolation10amitochondrial DNA10aphylogeny10aSoutheast Asia10asympatry1 aPimvichai, Piyatida1 aEnghoff, Henrik1 aPanha, Somsak uhttps://www.sciencedirect.com/science/article/abs/pii/S105579031300418102849nas a2200229 4500008004100000022001400041245017100055210006900226260001500295300001200310490000700322520208700329653002202416653001402438653001402452653002402466100002402490700002002514700001802534700002302552856004402575 2020 eng d a1445-522600aIntegrative taxonomy of the new millipede genus Coxobolellus, gen. nov. (Diplopoda : Spirobolida : Pseudospirobolellidae), with descriptions of ten new species0 aIntegrative taxonomy of the new millipede genus iCoxobolellusi g c14/08/2020 a591-6170 v343 a

Pseudospirobolellidae is a poorly known family of spirobolidan millipedes with only two genera and five described species. Yet, the descriptive taxonomy and molecular systematics of this group have been largely neglected. Therefore, the present work presents an integrative taxonomic study of new pseudospirobolellid taxa in Thailand. To this end, two mitochondrial gene fragments (COI and 16S rRNA) combined with morphological characters were used to define the genus Coxobolellus, gen. nov. with 10 new species, viz. C. albiceps, sp. nov., C. compactogonus, sp. nov., C. fuscus, sp. nov., C. nodosus, sp. nov., C. serratus, sp. nov., C. simplex, sp. nov., C. tenebris, sp. nov., C. tigris, sp. nov., C. transversalis, sp. nov. and C. valvatus, sp. nov. The interspecific COI sequence divergences among the new species ranged from 6 to 15%. The intergeneric COI sequence divergence between species of Coxobolellus, gen. nov., Benoitolus birgitae and Pseudospirobolellus sp. ranged from 20 to 23%. Three major morphological differences separate Coxobolellus, gen. nov. from Benoitolus and Pseudospirobolellus, namely (1) the protruding process on the 3rd (and 4th) coxae on male legs, (2) the posterior gonopod telopodite divided into two parts, and (3) a conspicuous opening pore at the mesal margin at the end of the coxal part of the posterior gonopod. Thus, the new genus is well supported by both mtDNA and morphological evidence, while the delimitation of the 10 new species is supported by the congruence between mtDNA and morphological data. Yet, with respect to the relationships of Benoitolus birgitae, morphological data suggest a similarity with Coxobolellus, gen. nov. and Pseudospirobolellus, whereas mtDNA data place this species in the Pachybolidae. Further phylogenetic analyses are needed to explore this apparent incongruence and test the monophyly of Pseudospirobolellidae.

10amitochondrial DNA10anew genus10aphylogeny10aspecies delineation1 aPimvichai, Piyatida1 aEnghoff, Henrik1 aPanha, Somsak1 aBackeljau, Thierry uhttps://www.publish.csiro.au/is/IS20031