Distribution and geographic variation of the four medium-sized species of the genus Cybaeus (Araneae: Cybaeidae) collected from northern Kyushu, Japan, were examined in detail. They are C. kuramotoi, C. ashikitaensis, C. kokuraensis n. sp. and C. yufuin n. sp. Of these, Cybaeus kuramotoi has the widest distributional range covering most of western Japan. On the other hand, distribution of C. ashikitaensis is separated into two disjunct areas, Kyushu and eastern part of the Chugoku Mountains of Honshu. Cybaeus kokuraensis and C. yufuin are endemic to Kyushu and have very limited distributional ranges. Of the four medium-sized species, two or three species are often sympatrically found in northern Kyushu, although the kuramotoi-group and C. ashikitaensis are parapatric in Okayama and Hyogo Prefecture, western Honshu. There is a slight difference in body size and coloration between these species when they occur sympatrically.
A new species of the jumping spider genus Epocilla Thorell 1887, E. chimakotiensis sp. n. is described from the Bhutan Himalayas. Epocilla praetextata Thorell 1887 is reported for the first time from the Himalayas. Female of E. praetextata is described for the first time. Diagnoses, descriptions and drawings of diagnostic characters for those species are given. Check-list of species of Epocilla from the Himalayas is given.
Bianor nexilis sp. n. and Bianor tortus sp. n. are described from Nepal, Bhutan and India. Both species are diagnosed, described and illustrated. A list of species of the genus Bianor from the Himalayas is given.
A total of 58 spider species is reported from material mainly collected on three recent expeditions to Laos. Out of these, five species are described as new: Psechridae — Psechrus khammouan sp. nov. (male, female), Psechrus luangprabang spec. nov. (male, female), Liocranidae — Sesieutes thakek spec. nov. (male), Zodariidae — Storenomorpha anne spec. nov. (male, female), Sparassidae — Pseudopoda houaphan spec. nov. (female). The males of Caerostris sumatrana Strand, 1915 (Laos; first record for Asia) and Eurychoera quadrimaculata Thorell, 1897 (Singapore) are described for the first time. Copulatory organs of the latter species are illustrated for both sexes to facilitate identification of Eurychoera banna Zhang, Zhu & Song, 2004. New records of species formerly known from Laos are listed: Heteropoda dagmarae Jäger & Vedel, 2005, H. maxima Jäger, 2001, H. tetrica Thorell, 1897, H. venatoria (Linnaeus, 1767), Rhitymna verruca (Wang, 1991), R. plana Jäger, 2003.