An update on the phylogeny of Spintharinae with analysis based on morphological characters and taxonomy of Janula (Araneae, Theridiidae)

The present study evaluates the monophyly of Spintharinae with the inclusion of all ten genera listed under subfamily (Brunepisinus; Chrosiothes; Episinus; Janula; Moneta; Neoepisinus; Pycnoepisinus; Spintharus; Stemmops; and Thwaitesia) and establishes the internal relationship among the spintharines genera. We evaluated 107 morphological characters and included 59 species as terminal taxa, 13 of which are outgroups. The phylogenetic analysis under implied weight resulted in three most parsimonious trees with the same topology with six optimal K values (3.349, 4.025, 4.910, 6.117, 7.859, 10.598). The monophyly of the Spintharinae is supported by four synapomorphies, two of these are exclusive. Stemmops was found to be a sister group to the rest of Spintharinae. The genera Spintharus, Thwaitesia, and Chrosiothes constitute a group. A larger group is represented by Brunepisinus, Episinus, Moneta, Neopisinus, and Pycnoepisinus. The other large group includes species of Janula and some species of Episinus. The genus Episinus appears polyphyletic. We described seven new species of the Spintharinae genus Janula from Brazil. Sixteen species are transferred from Episinus to Janula. Males of Janula malachina and J. teresopolis are described for the first time. Episinus rio is synonymized with Janula bicorniger. We present new illustrations of the male and female of Janula nebulosa and J. salobrensis. The species Janula bicruciata and J. nebulosa are recorded for the first time from Bolivia and other new records are provided for the known species. Episinus albostriatus is transferred to Chrosiothes.

Asianopis gen. nov., a new genus of the spider family Deinopidae from Asia.

A new genus of the spider family Deinopidae C.L. Koch, 1850 is described from Asia: Asianopis Lin & Li gen. nov., with A. zhuanghaoyuni Lin & Li sp. nov. as the type species. The new genus is divided into two species groups, of which the liukuensis-group includes two species: A. dumogae (Merian, 1911) sp. reval. comb. nov. (♀) and A. liukuensis (Yin, Griswold & Yan, 2002) comb. nov. (♂♀); and the zhuanghaoyuni-group comprises five species: A. celebensis (Merian, 1911) comb. nov. (♂), A. konplong (Logunov, 2018) comb. nov. (♂), A. wangi Lin & Li sp. nov. (♂♀), A. wuchaoi Lin & Li sp. nov. (♂♀), and A. zhuanghaoyuni Lin & Li sp. nov. All previously described species are transferred from Deinopis MacLeay, 1839. Deinopis scrubjunglei Caleb & Mathai, 2014 is treated as a junior synonym of Asianopis liukuensis comb. nov.

Description on two species of genus Platythomisus (Araneae, Thomisidae) from China and Singapore.

Two species of the genus Platythomisus Doleschall, 1859 are studied: P.xiandao Lin & Li, sp. nov. is described based on male and female specimens from Yunnan, China, and P.octomaculatus (C. L. Koch, 1845), the type species of the genus, is redescribed based on female specimens from Singapore. Its male, also from Singapore, is described for the first time.

A new Ovia species (Araneae, Lycosidae) from Singapore, with the transfer of Pardosa alboannulata Yin et al., 1997.

A new species of wolf spiders, Ovia macritchie sp. nov., is discovered in Singapore. It is closely related to O. procurva (Yu Song, 1988), hitherto the only species of Ovia Sankaran, Malamel Sebastian, 2017. O. macritchie also resembles Pardosa alboannulata Yin et al., 1997 from China, which is herein transferred to Ovia. All of them share a uniquely hooked terminal apophysis on the male pedipalp. Colour photos, line drawings, SEM photos and detailed descriptions are provided for both the new species O. macritchie and the newly combined species O. alboannulata.

Taxonomic notes on the armored spiders of the families Pacullidae and Tetrablemmidae (Arachnida, Araneae) from Singapore.

Eight species of armored spiders belonging to two families, Pacullidae Simon, 1894 and Tetrablemmidae O. Pickard-Cambridge, 1873, are reported from Singapore. Five species are documented as new to science: Paculla bukittimahensis Lin & Li, sp. n. (male and female), Paculla globosa Lin & Li, sp. n. (male and female), Ablemma malacca Lin & Li, sp. n. (male and female), Singaporemma lenachanae Lin & Li, sp. n. (male and female), and Sulaimania brevis Lin & Li, sp. n. (male). The three known species are Brignoliella besutensis Lin, Li & Jäger, 2012, Brignoliella michaeli Lehtinen, 1981, and Singaporemma singulare Shear, 1978, of which the female of Brignoliella besutensis is described for the first time. For comparison, types of Singaporemma adjacens Lehtinen, 1981 from Vietnam, Singaporemma halongense Lehtinen, 1981 from Vietnam, Singaporemma singulare from Singapore and Sulaimania vigelandi Lehtinen, 1981 from Malaysia are studied and photographed.

Five new species of the genus Ischnothyreus Simon, 1893 from Singapore.

Five new species of the genus Ischnothyreus are reported from Singapore: Ischnothyreus an Tong & Li, sp. n., Ischnothyreus brunneus Tong & Li, sp. n., Ischnothyreus dactylinus Tong & Li, sp. n., Ischnothyreus poculum Tong & Li, sp. n. and Ischnothyreus tectorius Tong & Li, sp. n. Morphological descriptions and illustrations are given for all new species.

Three new species and a new record of the spider genus Mallinella Strand, 1906 from Brunei (Araneae, Zodariidae).

This article is the first formal record of the genus Mallinella Strand, 1906 in Brunei Darussalam. Four Mallinella species are documented. Mallinella merimbunenis sp. nov., M. myrmecophaga sp. nov., and M. platyrhyncha sp. nov. are newly described. The females of M. bigemina Dankittipakul, Jocqué & Singtripop, 2012 are here recorded from Brunei for the first time. The latter species was previously known only from an evergreen hill forest at 2,000 m elevation at Mt. Kinabalu of Kinabalu Park in Sabah.