Abstract
A new species of tracheline spiders, Utivarachna rama Chami-Kranon & Likhitrakarn sp. n., is described. The types were collected from pristine forests of the Doi Inthanon National Park, Chiang Mai Province, northern Thailand. The new species belongs to the kinabaluensis-group and can be distinguished from its congeners by the gradually tapering retrolateral tibial apophysis of the male palp, and by the posteriorly rounded epigynal atrium, the reniform spermathecae, and the anterior bursae with long, narrow necks in females. Utivarachna rama sp. n. is closely related to U. bucculenta Deeleman-Reinhold, 2001 and U. kinabaluensis Deeleman-Reinhold, 2001.
References
Bosselaers, J. & Jocqué, R. (2000) Studies in Corinnidae: transfer of four genera and description of the female of Lessertina mutica Lawrence 1942. Tropical Zoology, 13, 305–325.
Bosselaers, J. & Jocqué, R. (2002) Studies in Corinnidae: cladistic analysis of 38 corinnid and liocranid genera, and transfer of Phrurolithinae. Zoologica Scripta, 31, 241–270.Dankittipakul, P. (2002) Diversity, distribution and occurrence of spiders in Doi Inthanon National Park, Chiang Mai Province. Unpublished M.Sc. thesis, Chiang Mai University, Chiang Mai, 1–325.
Deeleman-Reinhold, C.L. (2001) Forest spiders of South East Asia - with a revision of the sac and ground spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae [sic]). Brill, Leiden, 591 pp.
Dippenaar-Schoeman, A. & Jocqué, R. (1997) African spiders. An identification manual. ARC – Plant Protection Research Institute, Pretoria. 392 pp.
Hayashi, T. & Yoshida, H. (1993) Three new species of the family Clubionidae (Arachnida: Araneae) from Taiwan. Acta Arachnologica, 42, 47–53.Karsch, F. (1880). Arachnologische Blätter (Decas I). Zeitschrift für die gesamten Naturwissenschaften, 53: 373–409.
Kishida, K. (1940) Notes on two species of spiders, Doosia japonica and Utivarachna fukasawana. Acta Arachnologica, 5, 138–145.
Koch, L. (1872) Apterologisches aus dem fränkischen Jura. Abhandlungen der Naturhistorischen Gesellschaft Nürnberg, 6, 127–152.
Paik, K.Y. (1991) Korean spiders of the genus Ceto (Araneae: Clubionidae). Korean Arachnology, 6, 263–267.
Platnick, N. I. (2006) The world spider catalog, version 7.0. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html. Accessed December 5, 2006.Platnick, N. I. & Ewing, C. (1995) A revision of the tracheline spiders (Araneae, Corinnidae) of southern South America. American Museum Novitates, 3128, 1–41.
Ramírez, M., Lopardo, L. & Bonaldo, A. (2001) A review of the Chilean spider genus Olbus, with notes on the relationships of the Corinnidae (Arachnida, Araneae). Insect Systematics & Evolution, 31, 441–462.
Schenkel, E. (1936). Schwedisch-chinesische wissenschaftliche Expedition nach den nordwestlichen Provinzen Chinas, unter Leitung von Dr Sven Hedin und Prof. Sü Ping-chang. Araneae gesammelt vom schwedischen Artz der Exped. Archiv Zoology, 29(A1), 1–314.Simon, E. (1886) Arachnides recuellis par M. A. Pavie (sous chef du service des postes au Cambodge) dans le royaume de Siam, au Cambodge et en Cochinchine. Actes de la Société Linnéenne de Bordeaux, 40, 137–166.
Simon, E. (1906) Arachnides (2ième partie). In, Voyage de M. Maurice Maindron dans l'Inde méridionale. 8e Mémoire. Annales de la Société Entomologique de France, 75, 279–314.
Song, D.X., Zhu, M.S. & Chen, J. (1999) The Spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp.
Strand, E. (1929) Zoological and palaeontological nomenclatorical notes. Acta Universitatis Latviensis, 20, 1–29.