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A new, critically endangered species of softshell turtle, Pelodiscus variegatus sp. n. is described from north-central Vietnam and Hainan Island, China, distinguished by a unique …

A new species of Phrynobatrachus is described from the unexplored and isolated Bibita Mountain, southwestern Ethiopia, based on morphological characters and sequences of the mitoc…

Morpho-biological notes and histopathology, based on LM and SEM observations, of the fig cyst nematode Heterodera fici isolated from Ficus carica roots, collected in home and publ…

The most highly troglomorphic Collembola of Southeast Asia, Coecobrya sirindhornae sp. n., is described from a cave in Satun province, Thai Peninsula. It is characterised by its l…

The delphacid planthoppers genus Aoyuanus Ding & Chen, 2001 is reviewed. Two new species, A. spathulus sp. n. and A. varius sp. n., are described and illustrated from China to giv…

The zodariine spider genus Mallinus Simon, 1893 is redescribed and diagnosed. The type species, M. nitidiventris Simon, 1893 from South Africa, was originally described from subad…

Three new species of Luzonacera Li & Li, 2017 are described: L. francescoballarini Li & Li, sp. n. (♂♀), L. lattuensis Li & Li, sp. n. (♂♀) and L. peterjaegeri Li & Li, sp. n. (♂♀…

We here propose a new, monotypic genus, Amiga Nakahara, Willmott & Espeland, gen. n., to harbor a common Neotropical butterfly, described as Papilio arnaca Fabricius, 1776, and hi…

Seven new species of the genus Trilacuna Tong & Li, 2007: Trilacuna bawan Tong, Zhang & Li, sp. n. (male, female), T. datang Tong, Zhang & Li, sp. n. (male, female), T. fugong Ton…

Callistomorphus is one of the “forgotten” genera of the tribe Eugnomini inhabiting rain forest in New Caledonia. In this paper, the genus Callistomorphus and the type species C. f…

The centipede Lithobius proximus Sseliwanoff, 1878 is presented for the first time as a new member of the Polish fauna. This species, originally characterized as a widespread Sibe…

The species of the Eumorphus marginatus group from Sulawesi are revised. Two previously known species, E. costatus and E. wegneri, are redescribed, and a new species, Eumorphus mi…

An extensive collection of fungus gnats from Nepal and Bhutan, deposited at Kyushu University Museum in Japan, has been examined and revealed nine species of Allodia Winnertz, 186…

Four new species of armoured spiders from Sumatra, Indonesia are described. Three species are described in the genus Ablemma Roewer, 1963 and one species in the genus Brignoliella…

Bioacoustical data are useful for studying amphibians, especially their conservation, taxonomy, and evolution, among others. Of the 12 species of the Boana polytaenia clade, only …

A new species of the genus Triatoma Laporte, 1832 (Hemiptera, Reduviidae) is described based on specimens collected in the department of Huehuetenango, Guatemala. Triatoma huehuet…

Morphological and molecular analyses of specimens representative of the geographic range of the cyprinid genus Amblypharyngodon in Sri Lanka suggest the presence of only a single …

Three new species, namely Stenodyneriellus angustus sp. n. from Thailand, S. profundus sp. n. from Philippines, and S. longitergus sp. n. from Indonesia, are described and illustr…

The whip spider genus Sarax Simon, 1892 is widely distributed throughout Southeast Asia and part of the Indo-Malayan region. The genus is recorded from several Indonesian islands,…

A new species of Tenuibaetis Kang & Yang is described and illustrated based on larvae collected in Java in 2010, which is the most southeastern report of this genus to date. The t…

Lachnodius Maskell is a genus of three named species that are part of an Australian radiation of felt scale insects that induce galls on Eucalyptus and Corymbia (Myrtaceae). A fem…

A report on the brachyuran crabs collected from the southwestern coast of India by the Indian research vessel FORV Sagar Sampada is presented. The material consists of 13 species …

We report 22 parasitoid species from Greece that have emerged from their hosts belonging to Blattodea, Coleoptera, Hymenoptera and Lepidoptera, including 12 Braconidae, one Euloph…

A new species of land-locked freshwater shrimp, Neocaridina fonticulata sp. n. (Atyidae), is described from Kenting, Hengchun Peninsula, Pingtung County, southern Taiwan. This new…

Tobago is a small island on the southeast edge of the Caribbean Plate with a continental flora and fauna. Using DNA sequences from Genbank, new sequences, and morphological data f…

Epitomapta simentalae sp. n. occurs in depths of 4–10 m off the Mexican Central Pacific coast. It is distinctive in having twelve tentacles, each tentacle with two or three pairs …

Japanese and Taiwanese species of the genus Cephalobyrrhus are revised. A new species, C. amami sp. n., is described from Amami-Ôshima, the Ryukyus, Japan. This species is clearly…

Five Trogloneta species from Southwest China and Japan are reviewed that two new combinations and a new synonymy are proposed in the current paper: T. nojimai (Ono, 2010), comb. n…

The taxonomic status of Pseudopoda aureola (He & Hu, 2000) is revised based on the re-examination of the type specimen and fresh material collected from the type locality. The che…

A redescription is provided of the adult, tritonymph and deutonymph life stages of the troglobitic Neobisium (Blothrus) slovacum Gulička, 1977, which is known from Slovakia and Hu…

A taxonomic review of the known Taiwanese taxa of the pericaline Lebiini, this paper includes a key to the genera, keys to species, descriptions, and redescriptions of all species…

Two new lineages CAN-5 and CAN-6 were recognised in four populations of Monacha cantiana (Montagu, 1803) s.l. from the Italian Apuan Alps by joint molecular and morphological anal…

Male monstrilloid copepods belonging to the genus Caromiobenella Jeon, Lee & Soh, 2018 were collected from Chuja Island, Jeju, Korea, using a light trap. This paper describes a ne…

The family Microstigmatidae is composed of two subfamilies, Microstigmatinae and Micromygalinae, seven genera and 16 species. Micromygalinae is monotypic, comprising the species M…

A new species of bone-eating annelid, Osedax braziliensis sp. n., found in a sunken whale carcass at a depth of 4,204 m at the base of the São Paulo Ridge in the South Atlantic Oc…

A new species of Acartia (Odontacartia), A. (O.) edentatasp. n., was collected from Leyte Island in the Philippines. Morphologically, the new species resembles A. (O.) pacifica St…

Iberoporus pluto sp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The …

Content of the dipsadid genus Rhadinaea has changed considerably since Myers’ 1974 revision. Three species groups are recognized currently in the genus. Our fieldwork in Oaxaca in…

Three new species of the genus Zodarion Walckenaer, 1826, from China, are described as Zodarion apertum sp. n. (♂♀, from Xinjiang), Z. planum sp. n. (♂, from Shaanxi), and Z. ovat…

The Yangtze River basin is one of the most species-rich regions for freshwater mussels on Earth, but is gravely threatened by anthropogenic activities. However, conservation plann…

This is the fifth in a recent series of papers on the poorly known western North American pebblesnail genus Fluminicola (Caenogastropoda, Lithoglyphidae). Herein we clarify the ta…

A new species of the genus Stygepactophanes Moeschler & Rouch, 1984 (Copepoda, Harpacticoida, Canthocamptidae) is established to accommodate a small canthocamptid population colle…

Two cryptic species, which were previously reported as Amolops ricketti, are revealed on the basis of significant morphological and genetic divergences. Amolops sinensis sp. n. fr…

We report the Carabidae collected at the Shada Al-A’Ala Nature Reserve (SANR) in Baha Province in southwestern Saudi Arabia during 2013–2015. In total, 62 carabid species and subs…

The imago and soldier castes of a new Neotermes species, N. costaseca, are described. It is only the third termite species known from the Pacific coastal desert of Peru. Neotermes…

Twenty six new species of Australian Leioproctus (subgenus Colletellus) (Hymenoptera, Colletidae) are described: aberrans Leijs, sp. n., alatus Leijs, sp. n., albipilosus Leijs, s…

Four new species of the genus Idris Förster (Hymenoptera: Platygastroidea), reared from the eggs of pholcid spiders (Araneae: Pholcidae) in southeast Asia are described on the bas…

Five species of Prionospio Malmgren, 1867, each with four pairs of branchiae, are studied from coast of the Iberian Peninsula. Two of these species, Prionospio cristaventralis sp.…

Four species of freshwater crabs from three genera and two families (Cantopotamon hengqinense Huang, Ahyong & Shih, 2017, Nanhaipotamon guangdongense Dai, 1997, Nanhaipotamon maca…

In this paper, two new species of Onychocamptus Daday, 1903 are described from Thailand: Onychocamptus satunensis sp. n. and Onychocamptus tratensis sp. n. The following features …