A New Species of the Genus Pithemera (Oligochaeta: Megascolecidae) from Namat NBCA, Laos

  • Hong, Yong (Faculty of Biological Resources Science, Chonbuk National University) ;
  • James, Samuel W. (Natural History Museum and Biodiversity Research Center, University of Kansas) ;
  • Inkhavilay, Khamla (Department, Faculty of Science, National University of Laos)
  • Published : 2008.07.31


As a result of a taxonomic study on the earthworm material collected from Namat National Biodiversity Conservation Area (NBCA), Hoaphane Province, Laos, a new species, Pithemera viengthongensis sp. novo is described from near Namchong river, Viengthong district. The new species bearing two pairs of spermathecal pores in 7/8, 8/9 is not assignable to any other species of Pithemera as defined by Sims and Easton (1972). In the new species, the male pore region has kidney-shaped pads extending between XVII-19/20, the male pores and spermathecal pores are 0.31 circumference apart, and genital papillae are lacking. The ventral view of anterior body region and the spermathecae are illustrated.


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