Two new sesquiterpenoids from plant endophytic fungus Flammulina velutipes.

Two new sesquiterpenoids, flammupin A (1) and flammupin B (2), along with two known compounds, enokipodin C (3) and 5,5'-dibuthoxy-2,2'-bifuran (4) were obtained from Flammulina velutipes, an endophytic fungus isolated from the roots of Caulophyllum robustum Maxim. The structures were elucidated by the combination of HR-ESI-MS, NMR, and ECD analyses. Compound 3 exhibited moderate to potent cytotoxicity against A549, HeLa, and SMMC-7721 cells with IC50 values ranged from 3.69 to 11.84 µM.

Caulophyine A, a Rare Azapyrene Alkaloid from the Roots of Caulophyllum robustum.

A novel alkaloid caulophyine A (1) was isolated from the roots of Caulophyllum robustum Maxim., along with six known alkaloids 2-7. The structure of 1 was elucidated by extensive NMR and high resolution-time-of-flight (HR-TOF)-MS analyses, it is a rare nitrogen containing polycyclic aromatic hydrocarbon. The in vitro bioassays revealed that 2 presented remarkable cytotoxicity against A549 with an IC50 value of 3.83 µM in comparison with the positive control etoposide (IC50 = 11.63 µM). Compounds 1 and 2 also displayed weak Acetylcholinesterase (AChE) inhibitory activity with IC50 values of 123.03 and 80.74 µM respectively.

Acrocalyenes A and B, Two New Diterpenoids from Sinomenium acutum Associated Fungus Acrocalymma sp.

We identified two new diterpenoidal acrocalyenes A (1) and B (2) through chemical investigation on Acrocalymma sp., a plant-associated fungus from the tender stem isolates of Sinomenium acutum collected from the Qinling Mountains, along with seven already-recognized compounds (3-9). The HR-ESI-TOF-MS and 1D/2D NMR data were utilized for structural elucidation of these compounds, and the single-crystal X-ray diffraction was employed for absolute configuration clarification of the novel acrocalyenes 1 and 2. Bioassays revealed that the cytotoxicities of compounds 2, 4, 6, 7, and 8 against three human carcinoma cells (RKO, HeLa and HCC-1806) were moderate to strong, with IC50 between 6.70-38.82 µM. These isolates were also evaluated for their fungal resistant potentials against Botrytis cinerea, Fusarium culmorum and Fusarium solani, in which 3 displayed significant inhibitory effects on all three phytopathogenic fungi, showing respective MIC of 50, 25 and 25 µM.

Sinopestalotiollides A-D, cytotoxic diphenyl ether derivatives from plant endophytic fungus Pestalotiopsis palmarum.

Four new diphenyl ether derivatives, sinopestalotiollides A-D (1-4), one new natural α-pyrone product (11), as well as twelve known compounds (5-1 7), were obtained from the ethyl acetate extract of the endophytic fungus Pestalotiopsis palmarum isolated from the leaves of medicinal plant Sinomenium acutum (Thunb.) Rehd et Wils. The structures were elucidated by HR-ESI-MS and NMR spectrometry data. Bioassay experiments revealed that compounds 1-4 and 11 exhibited strong to weak cytotoxicities against three human tumor cell lines Hela, HCT116 and A549.

On the Nazeris fauna of Guangxi, China. II. The species of Daming Shan (Coleoptera, Staphylinidae, Paederinae).

Two new species of Nazeris Fauvel collected from Daming Shan, Guangxi Province, are described and illustrated: N. damingshanus Hu & Li, sp. n., N. longilobus Hu & Li, sp. n. An identification key to the Nazeris species from Guangxi is provided.

A new species of Quwatanabius Smetana (Coleoptera, Staphylinidae, Staphylininae) from Guangxi, South China.

A new species of Quwatanabius Smetana, Q. dayaoensis Hu, Li & Zhao sp. n. from Dayao Mountain, Guangxi Province, China, is described and illustrated. An identification key to species of Quwatanabius is provided.

Three new species of Nazeris Fauvel from the Jiuwan Mountain, Guangxi, China (Coleoptera, Staphylinidae, Paederinae).

Three new species of Nazeris Fauvel, 1873 from the Jiuwan Mountain, Guangxi, China, are described and illustrated: N. jiuwanensis, sp. n., N. qingshuius, sp. n. and N. yangmeius sp. n. An identification key to the Nazeris species in Guangxi is provided.

The Nazeris fauna in Xizang, China (Coleoptera, Staphylinidae, Paederinae).

Nine species of Nazeris Fauvel are reported from Xizang, China. Seven of them are described as new: N. mirabilis sp. n., N. dinggyensis sp. n., N. jifuensis sp. n., N. wenxuani sp. n., N. gladius sp. n., N. gyirongensis sp. n. and N. yadongensis sp. n. An identification key to the Nazeris species in Xizang and a map showing their distribution are provided.

The first species of Nazeris from Shenzhen City, Guangdong, China (Coleoptera, Staphylinidae, Paederinae).

N/A.

The Nazeris fauna of the Leigong Mountain, Guizhou, China (Coleoptera, Staphylinidae, Paederinae).

Seven species of Nazeris Fauvel, 1873 are reported for Guizhou, China. All of them are described as new: N. ingentis Lin, Yu Hu, sp. n., N. resimus Lin, Yu Hu, sp. n., N. leigongensis Lin, Yu Hu, sp. n., N. yujiei Lin, Yu Hu, sp. n., N. muricatus Lin, Yu Hu, sp. n., N. excertus Lin, Yu Hu, sp. n. and N. serratus Lin, Yu Hu, sp. n.

The Nazeris fauna of the Nanling Mountain Range, China (Coleoptera, Staphylinidae, Paederinae).

Fourteen species of Nazeris Fauvel, 1873 are reported for the Nanling Mountain Range, China. Four of them are described as new: N.xingmini Lin & Hu, sp. nov. (Guangdong, Jiangxi), N.huaiweni Lin & Hu, sp. nov. (Guangdong), N.meihuaae Lin & Hu, sp. nov. (Guangdong, Jiangxi) and N.lichongi Lin & Hu, sp. nov. (Hunan). An identification key to the Nazeris species reported for the Nanling Mountains, and a map showing their distribution are provided.

New species and records of Anchocerus Fauvel in China (Coleoptera: Staphylinidae: Staphylininae).

Two species of Anchocerus Fauvel are reported from China, one of them described as new: A. wenxuani Lin Hu, sp. n. (Guangxi). Anchocerus giganteus Hu, Li Zhao, 2010 is newly recorded from Shanghai, Jiangxi, Guangxi and Guangdong. A map showing the distribution of all Chinese species is provided.

A new species of Quedius Stephens in Zhejiang, China (Coleoptera, Staphylinidae, Staphylinini).

N/A.

New data of Nazeris Fauvel from the Dayao Mountains, Guangxi, China (Coleoptera, Staphylinidae, Paederinae).

Three new species of Nazeris Fauvel, 1873 from the Dayao Mountains, Guangxi, China, are described and illustrated: N. shengtangus Ma, Miao Hu, sp. n., N. songi Ma, Miao Hu, sp. n., and N. curvilaminatus Ma, Miao Hu, sp. n. An identification key to the Nazeris species in Guangxi, and a map showing their distribution are provided.

New data of Nazeris Fauvel in Anhui, China (Coleoptera, Staphylinidae, Paederinae).

A new species of Nazeris Fauvel, 1873 from Anhui, China, is described and illustrated: N. yaoluopingus, sp. n. Additional records of N. cultellatus Assing, 2013, an identification key to the Nazeris species in Anhui and a map showing their distribution are provided.

Five new species of Nazeris Fauvel in Guangxi, China (Coleoptera, Staphylinidae, Paederinae).

Six species of Nazeris Fauvel are reported for Guangxi, China. Five of them are described as new: N. maoershanus Hu Qiao, sp. n., N. rugosus Hu Qiao, sp. n., N. yuyimingi Hu Qiao, sp. n., N. biacuminatus Hu Qiao, sp. n., and N. yanzhuqii Hu Qiao, sp. n. Additional records of N. latilobatus Assing, 2016 and an identification key to the Nazeris species in Guangxi are provided.

New data of Nazeris Fauvel in Xizang, China (Coleoptera, Staphylinidae, Paederinae).

A new species of Nazeris Fauvel, 1873 from Xizang, China, is described and illustrated: N. zhifeii Hu Pan, sp. n. A key to Nazeris species in Xizang and a map showing their distribution are given.

Two new species of Nazeris Fauvel in the Luoxiao Mountain Range, China(Coleoptera, Staphylinidae, Paederinae).

Six species of the genus Nazeris Fauvel, 1873 are recorded in the Luoxiao Mountain Range, China. Two of them are described: N. yipingae sp. n. and N. jiaweii sp. n. Nazeris xiaobini Hu Li, 2015 and N. rufus Hu Li, 2015 are newly recorded from Hubei Province. An identification key to the Nazeris species in this area and a map showing their distribution are given.

New species and record of Nazeris Fauvel in southern China (Coleoptera, Staphylinidae, Paederinae).

Four species of Nazeris Fauvel are reported from Guangdong and Hunan, China, with three of them described as new: N. rubidus Hu, Luo Li, sp. n., N. nanlingensis Hu, Luo Li, sp. n., and N. gaoleii Hu, Luo Li, sp. n. Nazeris inaequalis Assing, 2014 is newly recorded from Guangdong Province.

Two new species and new records of Stilicoderus Sharp from China (Coleoptera, Staphylinidae, Paederinae).

Two new species of the genus Stilicoderus Sharp, 1889 from China are described and illustrated: S. maolini sp. nov. (Jiangxi, Hunan) of the S. variolosus group and S. chengrani sp. nov. (Xizang) of the S. signatus group. Additional records of eleven described species of Stilicoderus are given.