A new species of whip spider, Sarax sinensis sp. nov., from Fujian, China (Arachnida: Amblypygi: Charinidae).

To date, only two whip spider species have been recorded in China. We describe a new species, Sarax sinensis sp. nov.

Patterns in schizomid flagellum shape from elliptical Fourier analysis.

The arachnid order Schizomida is a relatively understudied group of soil-dwelling predators found on all continents except Antarctica. While efforts to understand their biology are growing, there is still much to know about them. A curious aspect of their morphology is the male flagellum, a sexually dimorphic, tail-like structure which differs in shape across the order and functions in their courtship rituals.

Taxonomy of the thelyphonid genus Pocock, 1894, including homology proposals for the male gonopod structures (Arachnida, Thelyphonida, Typopeltinae).

The genus Pocock, 1894 is poorly known regarding its systematics, natural history, and distribution, despite important taxonomic advances during the 1990s. Currently, only 13 species are known from East Asia, including areas in south China, Japan, Vietnam, Laos, Thailand, and Taiwan. In this work, we describe and illustrate a new species of from Vietnam and provide a new description for the male of Haupt & Song, 1996.

Amblypygids of Timor-Leste: first records of the order from the country with the description of a remarkable new species of (Arachnida, Amblypygi, Charinidae).

The whip spider genus Simon, 1892 is widely distributed throughout Southeast Asia and part of the Indo-Malayan region. The genus is recorded from several Indonesian islands, but no species are known from inside the area that comprises the biogeographical region of Wallacea, despite being recorded from both sides of the area. An expedition to survey the biology of caves in Timor-Leste (formerly East-Timor) discovered populations of amblypygids living underground and including a remarkable new species of , , the first Amblypygi known from the island of Timor.

Filling the gap of whip spider distribution in Asia: Phrynichus persicus sp.n. (Arachnida, Amblypygi), a new Phrynichidae from Iran.

The whip spider genus Phrynichus (Phrynichidae, Amblypygi) is widely distributed in Africa, the Arabian Peninsula and Asia with a total of 17 species. No records, however, are known from several countries in the Middle East. Here we provide the first record of a whip spider from Iran (Ilam Province), with the description and illustration of a new species, Phrynichus persicus sp.

species group: new diagnosis, key and description of new cave-dwelling species from Brazil (Schizomida, Hubbardiidae).

The species group is reviewed and rediagnosed, and its composition is revised. The group now includes , , , , , , , , , , and A new species is described from a cave in northeast Brazil (Santa Quitéria, Ceará). Identification keys and distributional maps are provided for the species of the group.

Eight New Species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) Endemic for the Brazilian Amazon, with Notes on Their Conservational Status.

Eight new species of Charinus Simon, 1892 are described for the Brazilian Amazon, from the states of Pará (C. bichuetteae sp. n.

New Proposal of Setal Homology in Schizomida and Revision of Surazomus (Hubbardiidae) from Ecuador.

The homology of three somatic systems in Schizomida is studied yielding the following results: (1) proposal of homology and chaetotaxy of abdominal setae in Surazomus; (2) revision of the cheliceral chaetotaxy in Schizomida, with suggestion of new homology scheme between Hubbardiidae and Protoschizomidae, description of a new group of setae in Hubbardiinae (G7), and division of setae group 5 in two subgroups, G5A and G5B; (3) proposal of segmental homology between trimerous and tetramerous female flagellum in Hubbardiinae with association of segment III of tri-segmented species to segments III + IV of tetra-segmented species. Considerations about the dorsal microsetae on the male flagellum are made. The genus Surazomus in Ecuador is revised.

Three new species of Macrelmis Motschulsky (Coleoptera: Elmidae: Elminae) from Southeastern Brazil with new definition of species groups to the genus.

Three new species of Macrelmis Motschulsky, 1859 are described and illustrated based on adult males from Rio de Janeiro, Minas Gerais and São Paulo states (southeastern Brazil). A new species groups definition is proposed for the genus, with a redefinition of the former six (aristeae sp. group, celsa sp.