Golovatch S.I.1, Geoffroy J.-J.2, Mauriès J.-P.3, VandenSpiegel D.4 2012. New or poorly-known species of the millipede genus Trachyjulus Peters, 1864 (Diplopoda: Spirostreptida: Cambalopsidae) // Arthropoda Selecta. Vol.21. No.2: 103–129 [in English].

1 Institute for Problems of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia.

2 Muséum national d’Histoire naturelle, Département Ecologie & Gestion de la Biodiversité, UMR 7204 CERSP du CNRS, Equipe EVOLTRAIT, 4, avenue du Petit Château, F-91800 Brunoy, France.

3 Muséum national d’Histoire naturelle, Département Systématique et Evolution, Section Arthropodes, Case Postale n°53, 61 rue Buffon F-75231 Paris Cedex 05, France.

4 Musée Royal de l’Afrique centrale, B-3080 Tervuren, Belgium.

KEY WORDS: Diplopoda, Trachyjulus, taxonomy, new species, cave, Thailand, Malaysia, Vietnam, Nepal.

ABSTRACT. The large genus Trachyjulus, in which endemic species range from Sri Lanka and India in the west, through Indochina and the Himalaya, to Malay Peninsula and Indonesia (Sumatra and Java), in the east, currently encompasses 31 species, including four new: T. beroni sp.n. and T. subcalvus sp.n., both from Malaysia, as well as T. unciger sp.n. and T. phylloides sp.n., both from Thailand. In addition, brief redescriptions and abundant illustrations are provided for T. singularis (Attems, 1938) from southern Vietnam and several provinces of Thailand, as well as for T. tjampeanus (Attems, 1903) from Java, whereas the pantropical T. calvus (Pocock, 1893), based on fresh material from Nepal, is a senior subjective synonym of T. nordquisti (Attems, 1909) and T. nordquisti ambigu­us Mauriès, 1983 (both syn.n.).

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