Revision of the genus Colasia Koch, 1965 (= Belousovia Medvedev, 2007, syn. nov.) (Coleoptera, Tenebrionidae, Blaptini).

The relationship between the genera Colasia Koch, 1965 and Belousovia Medvedev, 2007 within the tribe Blaptini is discussed, and a new synonymy is proposed: Belousovia Medvedev, 2007, syn. nov. of Colasia Koch, 1965. As a result, three new combinations are established: Colasiahelenae (Medvedev, 2007), comb. nov., C.kabakiintermedia (Medvedev, 2007), comb. nov., and C.kabakikabaki (Medvedev, 2007), comb. nov.Colasiaakisoides Koch, 1965 is redescribed, and a lectotype is designated. Three new species of the genus Colasia are described and illustrated from China: C.bijicasp. nov. (Guizhou), C.medvedevisp. nov. (Yunnan), and C.pilosasp. nov. (Yunnan). A distribution map and a key to species of the revised genus Colasia are presented.

Contribution to the knowledge of the genus Solskyia Solsky, 1881 (Coleoptera, Tenebrionidae, Akidini) from China.

Two new species of the genus Solskyia, S.infossata sp. nov. and S.lhozhaga sp. nov., are described and illustrated from Xizang, China. Solskyialhasana is redescribed and figured based on a male, and new material of S.caporiaccoi and S.parvicollis from China is documented. The ecology and biology of adults and larvae is briefly introduced. Furthermore, photographs of habitat, and a key to Chinese species are presented.

Early stress-induced impaired microglial pruning of excitatory synapses on immature CRH-expressing neurons provokes aberrant adult stress responses.

Several mental illnesses, characterized by aberrant stress reactivity, often arise after early-life adversity (ELA). However, it is unclear how ELA affects stress-related brain circuit maturation, provoking these enduring vulnerabilities. We find that ELA increases functional excitatory synapses onto stress-sensitive hypothalamic corticotropin-releasing hormone (CRH)-expressing neurons, resulting from disrupted developmental synapse pruning by adjacent microglia. Microglial process dynamics and synaptic element engulfment were attenuated in ELA mice, associated with deficient signaling of the microglial phagocytic receptor MerTK. Accordingly, selective chronic chemogenetic activation of ELA microglia increased microglial process dynamics and reduced excitatory synapse density to control levels. Notably, selective early-life activation of ELA microglia normalized adult acute and chronic stress responses, including stress-induced hormone secretion and behavioral threat responses, as well as chronic adrenal hypertrophy of ELA mice. Thus, microglial actions during development are powerful contributors to mechanisms by which ELA sculpts the connectivity of stress-regulating neurons, promoting vulnerability to stress and stress-related mental illnesses.

Revision of the genus Bioramix Bates, 1879 (Coleoptera: Tenebrionidae: Platyscelidini) from China.

The genus Bioramix Bates, 1879 from China is revised, 54 valid species are recognized in this study, including 23 new ones: B. (Cardiobioramix) barkamica sp. nov., B. (C.) gibbosa sp. nov., B. (C.) longicornis sp. nov., B. (C.) prolongata sp. nov., B. (C.) tenuitarsus sp. nov., B. (Leipopleura) baxoica sp. nov., B. (L.) cupreoviridis sp. nov., B. (L.) exsertigenae sp. nov., B. (L.) homoplasta sp. nov., B. (L.) impressithorax sp. nov., B. (L.) latitarsis sp. nov., B. (L.) laxipenis sp. nov., B. (L.) lhozhagensis sp. nov., B. (L.) longipilis sp. nov., B. (L.) miranda sp. nov., B. (L.) nigra sp. nov., B. (L.) rectiangulata sp. nov., B. (L.) riwoqeica sp. nov., B. (L.) rugelytra sp. nov., B. (L.) seidlitzi sp. nov., B. (L.) subcarinata sp. nov., B. (L.) tiani sp. nov., B. (L.) yushuana sp. nov. The following new synonymy is proposed based on the examination of type and additional specimens: B. (C.) globipunctata Bai Ren, 2016 = B. (C.) liupanshana Bai Ren, 2016, syn. n.; B. (C.) szetschuana (Kaszab, 1940) = Platynoscelis (C.) kulzeri Kaszab, 1960, syn. n.; B. (L.) integra (Reitter, 1887) = Platyscelis (Platyscelis) obovatus Ren, 1999, syn. n.; B. (L.) politicollis (Kaszab, 1940) = B. (L.) baqenensis Li Egorov, 2016, syn. n.; B. (L.) rubripes (Reitter, 1889) = Myatis brevipilosum Meng Ren, 2005, syn. n., formerly synonymized with B. (L.) micans Reitter, 1889; B. (L.) rufipalpis (Reitter, 1887) = Platynoscelis (Trichoplatyscelis) darbukensis Kaszab, 1940, syn. n. The subgenus Planoplatyscelis Kaszab, 1940 and B. (P.) pamirensis Bates, 1879 are recorded from China for the first time. Lectotypes are designated for Helops subaenea Reitter, 1889 and Botiras punctatellus Fairmaire, 1891. The biology of adult, larvae and pupa is briefly introduced. Furthermore, new distribution records, images of adults, male aedeagus and habitat, and a key to Chinese species are presented.

Description of a new subgenus and four new species of Gnaptorina Reitter, 1887 (Coleoptera: Tenebrionidae: Blaptini) from China.

A new subgenus and four new species of the genus Gnaptorina Reitter, 1887 from China are described and illustrated: Austroptorina subgen. n. (type species Gnaptorina longicornis Li Ren, 2004), G. (A.) polita sp. n. (Xizang), G. (B.) ampliptera sp. n. (Sichuan), G. (G.) artipenis sp. n. (Sichuan) and G. (G.) crenata sp. n. (Sichuan, Xizang). The new subgenus distributes in southeastern Xizang and western Hengduan Mountains of China, antennae and legs slender and long, protibiae slightly emarginate from middle to apex on inner side and weakly curved to inner side apically, ventral surface of protarsomeres 1-2 and mesotarsomere 1 with hairy brush in males.

A taxonomic revision of the genus Hexarhopalus (Coleoptera, Tenebrionidae: Cnodalonini) from China.

Chinese components of the genus Hexarhopalus Fairmaire, 1891 are revised. Four new species, Hexarhopalus (Hexarhopalus) liuyixiaoi Jiang, Bai, Ren Wang sp. nov. from Hunan and Hubei, Hexarhopalus (Leprocaulus) qiujianyueae Jiang, Bai, Ren Wang sp. nov. and Hexarhopalus (Leprocaulus) qiului Jiang, Bai, Ren Wang sp. nov. from Yunnan and Hexarhopalus (Leprocaulus) xuhaoi Jiang, Bai, Ren Wang sp. nov. from Xizang are described, figured and compared with their congeners. Hexarhopalus (Leprocaulus) difformis (Pic, 1922) is recorded from Yunnan, China for the first time. New distributional records are provided for Hexarhopalus (Leprocaulus) bisinuatus Ren Xu, 2011 from Hunan, Sichuan and Fujian, China. Supplementary description is presented for Hexarhopalus (Hexarhopalus) sculpticollis Fairmaire, 1891, Hexarhopalus (Hexarhopalus) sculptilis Kaszab 1960 and Hexarhopalus (Leprocaulus) difformis (Pic, 1922) to include the genital characters. A checklist, key and the distribution map of all known Chinese Hexarhopalus species are also provided.

Revision of the genus Platyscelis Latreille, 1818 from China (Coleoptera: Tenebrionidae: Platyscelidini).

The genus Platyscelis Latreille, 1818 (Coleoptera: Tenebrionidae: Platyscelidini) from China is revised. Sixteen valid species (subspecies) are recognized in this study, including three new ones: P. (s. str.) acutipenis sp. nov. from Gansu and Ningxia, P. (s. str.) densipunctata sp. nov. from Gansu, and P. (s. str.) helanensis sp. nov. from Inner Mongolia and Ningxia. A synonymy between P. (s. str.) brevis Baudi di Selve, 1876 and P. ballioni Reitter, 1889 is proposed based on the examination of type and additional specimens. Lectotypes are designated for P. hauseri Reitter, 1899, P. gebieni Schuster, 1915, P. (s. str.) angusticollis Kaszab, 1940, P. (s. str.) licenti Kaszab, 1940, P. (s. str.) platytarsis Kaszab, 1940 and P. (s. str.) suiyuana Kaszab, 1940. Furthermore, new distribution records, images of adults and male aedeagus, and a key to Chinese species are presented.

Two new species of the genus Gnaptorina Reitter from the Hengduan Mountains, China (Coleoptera: Tenebrionidae: Blaptini).

Two new species of nominal subgenus of Gnaptorina Reitter, 1887 (Coleoptera, Tenebrionidae: Blaptini), G. (G.) acutangula sp. nov., G. (G.) crassitibia sp. nov., are described from the Hengduan Mountains, Western Sichuan province of China. A key to the known species of the subgenus Gnaptorina is provided.

A review of the genus Oodescelis Motschulsky, 1845 (Coleoptera: Tenebrionidae: Platyscelidini) from China.

The Chinese species of the genus Oodescelis Motschulsky, 1845 are revised. Fifteen species belonging to five subgenera are listed. O. (Acutoodescelis) emmerichi Kaszab, 1940 is proposed as subspecies of O. (A.) punctatissima (Fairmaire, 1886) [O. (A.) punctatissima emmerichi Kaszab, 1940, stat. n.]. A new synonym is established: O. (A.) pyripenis Ren, 1999 = O. (A.) punctatissima (Fairmaire, 1886), syn. n. based on the morphological characters, geographic distribution, and assessment on the molecular phylogeny [except O. (A.) pyripenis]. A new subspecies and a new species are described: O. (A.) punctatissima henanana Bai Ren, subsp. nov. from Henan and O. (Planoodescelis) lii Bai Ren, sp. nov. from Hubei. Lectotypes for the follwoing species are designated: Platyscelis punctatissima Fairmaire, 1886, Platyscelis (Oodescelis) affinis Seidlitz, 1893, Platyscelis (Oodescelis) brevipennis Kaszab, 1938, Platyscelis (Oodescelis) similis Kaszab, 1938, Oodescelis (Clavatoodescelis) acutanguloides Kaszab, 1940, Oodescelis (Clavatoodescelis) kuntzeni Kaszab, 1940 and Oodescelis (Clavatoodescelis) sachtlebeni Kaszab, 1940. Additional diagnostic characters of the subgenus Planoodescelis Egorov, 2004 are proposed. In addition, newly collected materials are examined, new distribution records, habitus of adults, images of male protibiae and aedeagus are provided, and a key to Chinese species is given. Furthermore, the first and preliminary molecular phylogeny of the genus is presented, and the used markers may be helpful to reconstitute the phylogenetic relations within the tribe Platyscelidini.

A new species of the genus Blaptogonia from the Himalayas with four DNA markers (Coleoptera, Tenebrionidae, Blaptini).

A new species of the genus Blaptogonia Medvedev, 1998, B. zhentangasp. n., is described from the southern Himalayas of China. Two fragments of mitochondrial protein-coding genes (COI, Cytb), one fragment of mitochondrial ribosomal RNA gene (16S), and one fragment of nuclear rRNA gene (28SD2) of the new species were obtained. A key to the known species of the genus is presented.