The Eutrichodesmus fauna of mainland China, by far the largest genus in the Indo-Australian family Haplodesmidae, is reviewed and shown to encompass 23 species (of a total of 45), all keyed. The following nine new species, all presumed troglobites, are described: Eutrichodesmustriangularis sp. n., from Sichuan, Eutrichodesmuslipsae sp. n., from Guangxi, Eutrichodesmustenuis sp. n., Eutrichodesm...

The illustrated descriptions of eight new species of the genus Dinotrema with either the propodeum mainly sculptured or having a large propodeal areola from Spain are provided, viz. Dinotrema amparoae sp. n., Dinotrema benifassaense sp. n., Dinotrema lagunasense sp. n., Dinotrema pilarae sp. n., Dinotrema robertoi sp. n., Dinotrema teresae sp. n., Dinotrema tinencaense sp. n., and Dinotrema tor...

A restricted phylogenetic analysis is conducted to test if the family Akanthophoreidae is monophyletic. The family was found to be monophyletic with a Bremer support of 11 and is redefined to include the genera Akanthophoreus, Chauliopleona, Mimicarhaphura, Parakanthophoreus gen. nov., Paraleptognathia, Stenotanais, and Tumidochelia, while Gejavis is removed. Akanthophoreus and Paraleptognathia...

Four new species of the genus Mysmenopsis are described: M. onorei n. sp., M. otonga n. sp., M. fernandoi n. sp. and M. chiquita n. sp. All species were collected in diplurid webs and are therefore assumed to be kleptoparasitic. Five potential host species of the genus Linothele (Dipluridae) that were collected with the symbionts are also described: Linothele yanachanka n. sp., L. pukachumpi n....

Specimens of Neoempheria previously considered to be N. ferruginea (Brunetti, 1912) are studied and revised. Eleven new species are described from Japan, Nepal, Philippines, and Thailand; N. biceltisuta sp. n., N. bifurcata sp. n., N. bisecuriata sp. n., N. brevispathulata sp. n., N. carinata sp. n., N. cuneata sp. n., N. dilatata sp. n., N. denticulata sp. n., N. forficulata sp. n., N. latiste...

The genus Beardius Reiss et Sublette, 1985 is revised and twenty new species, Beardius abbadi sp. n., B. arawak sp. n., B. bizzoi sp. n., B. bucephalus sp. n., B. curticaudatus sp. n., B. dioi sp. n., B. hirtidorsum sp. n., B. krenak sp. n., B. kumadueni sp. n., B. longicaudatus sp. n., B. mileneae sp. n., B. nebularius sp. n., B. neusae sp. n., B. novoairensis sp. n., B. phoenix sp. n., B. sap...

Twenty one jumping spider species from South Yunnan are reported, diagnosed, described and illustrated; 19 of them are described as new: Afraflacilla ballarini Cao & Li, sp. n. (♂), Agorius tortilis Cao & Li, sp. n. (♂♀), Bavia exilis Cao & Li, sp. n. (♂), Carrhotus kevinlii Cao & Li, sp. n. (♂♀), Carrhotus sarahcrewsae Cao & Li, sp. n. (♂), Chinattus wengnanensis Cao & Li, sp. n. (♂♀), Chinoph...

Nine new species of the family Nesticidae, collected from caves in Guangxi, Guizhou, Henan and Yunnan Provinces of China, are diagnosed, described and illustrated: Nesticella apiculata n. sp., Nesticella arcuata n. sp., Nesticella falcata n. sp., Nesticella gracilenta n. sp., Nesticella semicircularis n. sp., Nesticella shanlinensis n. sp., Nesticella verticalis n. sp., Nesticus globosus n. sp....