Revision of Cebrenninus Simon, 1887 with description of one new genus and six new species (Araneae: Thomisidae)

The crab spider genus Cebrenninus Simon, 1887 is redefined based on morphology of adult males and females. Cebrenninus now is constituted of 10 nominal species. The following new species are described: Cebrenninus banten sp. nov., C. berau sp. nov., C. magnus sp. nov., C. phaedrae sp. nov., C. schawalleri sp. nov., and C. tangi sp. nov. Three new synonyms are proposed: Libania scabricula Thorell, 1890 syn. nov., Libania scabricula sulcata Thorell, 1890 syn. nov., and Libania annulata Thorell, 1890 syn. nov. = Cebrenninus rugosus Simon, 1887. Cupa kalawitana Barrion & Litsinger, 1995 is removed from the synonymy of C. rugosus and placed as a distinct species in Cebrenninus, i.e. C. kalawitana (Barrion & Litsinger, 1995) comb. nov. Morphological comparison of Cebrenninus and Ascurisoma Strand, 1929 shows that the latter should be considered a junior synonym of the former. Thus, Ascurisoma striatipes (Simon, 1897) is transferred to Cebrenninus, C. striatipes (Simon, 1897) comb. nov. Crockeria kinabalu gen. et sp. nov. from Mt Kinabalu National Park, Sabah, is described on the basis of its exceptional palp which has a median apophysis in addition to conductor and embolus. Libania laevis Thorell, 1890 syn. nov. is transferred to this new genus, now being called Crockeria laevis (Thorell, 1890) comb. nov.