ZooKeys最新文献

We describe three newly discovered species of the genus Stigmatophora Staudinger, 1881 from China, (S.bucseki sp. nov., S.longa sp. nov., and S.dianensis sp. nov.) and establish a new subgenus Bifurcistigmasubgen. nov. for the first two. Detailed descriptions of the external morphology and male and female genitalia of the new species are provided, along with those of S.obraztsovi Daniel, 1951, which is also assigned to the new subgenus. A checklist of all species of Stigmatophora is presented including the distribution, type locality, and synonymy of each.

Two new species of the wolf-spider genus Hippasosa Roewer, 1960 are described from Asia: Hippasosathailandica sp. nov. (♂) from Thailand and H.yunnanensis sp. nov. (♂♀) from China. Detailed species descriptions, morphological photographs, genitalia illustrations, and distribution maps of the new species are presented. Photographs of H.qiongzhongensis (Yin & Peng, 1997) are also provided for comparison purposes.

Based on adult morphological features, two new species are described and assigned to the leucochrysine genus Santocellus: Santocelluslegrandi sp. nov. from Central America and Santocellushelene sp. nov. from Bolivia. As a result, the genus, which now contains five known species, becomes more securely defined. An updated catalog and an illustrated key to the known Santocellus species are provided.

Eucyclopssperatus (Lilljeborg, 1901) (Copepoda, Cyclopoida, Cyclopidae) was studied using various methods. Molecular genetic methods (comparison of COI and ITSn molecular markers) have shown that this species represents a species complex, and the following methods were used to search for differences between the species: analysis of qualitative and quantitative characters, linear morphometrics, landmark-based geometric morphometrics, and integumental pore pattern of the cephalothorax. Eucyclopssibiricus sp. nov. from Middle Siberia is described. The two studied species can be considered pseudocryptic; the main morphological difference between the species is the number of setules on the inner side of the first and second exopod segments of the fourth pair of swimming legs: E.sibiricus sp. nov. has 6-10 and 7-17 setules, respectively; E.speratus has 0-3 and 0-6 setules, respectively. The morphometry and integumental pore pattern of the cephalothorax were ineffective for identification and separation of species. The existing previous records of E.speratus were also analyzed, and the records of this species in the Irkutsk region (Russia), as well as in Japan and Korea, are attributed to E.sibiricus sp. nov.

The species of the genus Megadrypta Sciaky & Anichtchenko, 2020 are reviewed. A new species M.maozhoui sp. nov. is described from Sichuan and Yunnan provinces, China (type locality: Tiantaishan, Qionglai City, Sichuan). New provincial records of M.mirabilis Sciaky & Anichtchenko, 2020 are reported as well. A key of the genus Megadrypta is provided.

Mutatus gen. nov. is described from southwest China, including four new species: M.gelao sp. nov. (♂♀, Guizhou Province), M.tianyan sp. nov. (♂♀, Hubei Province), M.tujia sp. nov. (♂♀, Hubei Province), and M.yintiaoling sp. nov. (♂, Chongqing Municipality). This new genus can be differentiated from other phrurolithid genera by the male palp which has a prolateral tegular apophysis and tegular sheet, and by a small protuberance on the female epigynal plate.

A taxonomic review of the seashore-inhabiting Medon Stephens along the East Asian coasts is presented based on morphological and molecular characters (COI). Specimens of Medoncalculosus Ahn & Jeon, sp. nov. and M.tomokoae Shibata & Fujimoto are extremely similar to each other, although there are differences in the form and structure of the aedeagus. Detailed comparison of morphological characters and molecular analyses based on genetic divergence and gene tree monophyly for species delimitation support the validity of the new species. Intraspecific genetic divergence of COI using uncorrected p-distance among Medon individuals ranged from 0% to 0.79%, while interspecific divergence among three Korean Medon species ranged from 7.74% to 11.69%. Morphological characters of M.calculosus Ahn & Jeon, sp. nov., M.prolixus (Sharp), and M.tomokoae are compared. The new species is described with illustrations of diagnostic characters and a key to species of the East Asian coastal Medon is presented.

Ladybird beetles (Coleoptera, Coccinellidae) are a species-rich, ecologically diverse and economically important group of insects. A new ladybird genus of Scymnini, Reniscymnus gen. nov., is described from China and Laos, along with two new species, Reniscymnuscordatus Peng & Chen, sp. nov. and Reniscymnusexplanatus Peng & Chen, sp. nov. This newly identified genus can be distinguished from the remaining members of the tribe Scymnini by its short antenna consisting of eight antennomeres and an inflated antennal club bearing two extremely long setae; the narrow frons; the slightly tapering apically terminal maxillary palpomere; as well as the recurved and laterally almost complete abdominal postcoxal lines that enclose a distinctly wide area. Detailed morphological descriptions, illustrations, and a key to identify these two species within the new genus are provided. Morphological similarities and relationships of the new genus with other genera of Scymnini are discussed.

Taxonomic notes on the genus Apiocephalus Gahan, 1898 are provided. The genus is newly recorded in China with the description of a new species, Apiocephalusyangmingae sp. nov., from the Qinling Mountains. Brief redescriptions of Apiocephaluspunctipennis Gahan, 1898 and Apiocephaluslicheneus Gahan, 1906 are presented, along with their holotype photographs. A key to the known species is given.

A new species of the Cnemaspissiamensis group is described from Wang Khrachae District, Kanchanaburi Province, western Thailand based on morphological and molecular data. The new species, Cnemaspisenneaporus Rujirawan, Aksornneam & Aowphol, sp. nov., is distinguished from other species in the C.siamensis group by having the combination of SVL 42.2 mm in adult male (n = 1), 43.7 mm in adult female (n = 1); eight supralabials; seven or eight infralabials; ventral scales smooth; nine continuous precloacal pores in male; 17 or 18 paravertebral tubercles linearly arranged; tubercles on lower flanks present; lateral caudal furrows present; no caudal tubercles in the lateral furrows; ventrolateral caudal tubercles present on original portion of tail; caudal tubercles not encircling tail; subcaudals smooth; no enlarged median subcaudal row; two postcloacal tubercles on each side of tail; no shield-like subtibial scales; subtibial scales smooth; no enlarged submetatarsal scales; 26-28 subdigital lamellae on the fourth toe; sexually dimorphic for dorsal and ventral colour pattern; prescapular marking absent; gular marking absent; and yellow colouration in life on all ventral surfaces of head, body and tail in adult male. Phylogenetically, the new species is recovered as the sister taxon to C.huaseesom, but the two species are separated by 8.3-9.4% uncorrected pairwise genetic divergences in the mitochondrial NADH dehydrogenase subunit 2 gene and flanking tRNAs.