Five new species of the genus Champion, 1923 from Guizhou Province, China (Coleoptera, Elmidae).

The genus Champion, 1923 comprises 60 described species distributed across the Oriental and Palearctic regions. Species diversity is very high in mainland China, with 28 recorded species. Here, the results of the aquatic beetle survey in Guizhou Province are presented; they began in 2021, when we collected more than 5000 specimens of riffle beetle.

Biology of Callistethus plagiicollis (Coleoptera: Scarabaeoidea: Rutelinae) and comparative morphology of its larvae.

Larvae of the beetle subfamily Rutelinae are poorly described in the literature. Notably, the morphology of the larvae of Callistethus plagiicollis Fairmaire has not previously been analyzed. Here, we report for the first time that these larvae feed on the tubers and roots of Gastrodia elata Blume, an important traditional Chinese herbal medicine, which causes a reduction in the yield and economic value of G.

A new species of the genus Macronychus Mller, 1806 from China (Coleoptera, Elmidae).

Macronychus xuhaoi sp. nov., a new species of the genus Macronychus Mller, 1806 is described from Xizang, Southwest China.

Three new species of the genus Champion, 1923 (Coleoptera, Elmidae) from China.

Three new riffle beetles of the genus Champion, 1923 are described from China, namely and from Sichuan Province, and from Hunan Province. Habitus and diagnostic features of the new species are illustrated. A checklist of all known Chinese species is given, and a key and distributional map of species from the Chinese mainland are provided.

Discovery of the termitophilous genus Horn, 1877 (Coleoptera, Staphylinidae, Aleocharinae) from China with description of a new species.

The termitophilous genus Horn, 1877 is recorded from China for the first time. A new species, is described; it was collected in a nest of the termite genus Holmgren from a dead and flattened pine tree.

Description of the mature larva and pupa of Synchroa chinensis Nikitsky, 1999 (Coleoptera, Synchroidae).

During our field work, a series of larvae of the family Synchroidae was collected under the bark of dead trees. Subsequently, most larvae were reare to adults in a lab and were identified as Synchroa chinensis Nikitsky, 1999. In the present paper, we describe the mature larva and pupa of S.

Discovery of Grouvellinus huaxiensis sp. nov. (Coleoptera: Elmidae) from the urban river Huaxi in Guiyang, China.

Grouvellinus huaxiensis sp. nov. was collected from Huaxi river in an urban setting of Guiyang (Guizhou, China) in 2021.

New species and distributional records of the genus Broscosoma Rosenhauer, 1846 (Coleoptera, Carabidae, Broscinae) from Fujian, China.

A new species of the genus Broscosoma Rosenhauer, 1846 is described from Fujian Province, China. New distributional records of Broscosoma guoliangi Jiang, Liu & Wang, 2021 are added. Distributional map of known Broscosoma species from Fujian Province and the key to Broscosoma species from Southeast China are also provided.

Additional new species of the genus Hexarhopalus Fairmaire, 1891 (Coleoptera, Tenebrionidae: Cnodalonini) from China.

Three new species of the genus Hexarhopalus Fairmaire, 1891, all of the nominate subgenus, are described and figured from China: Hexarhopalus (Hexarhopalus) ferreri sp. nov. from Yunnan, H.

Discovery of the Genus Horn, 1873 from Cretaceous Kachin Amber (Coleoptera: Histeridae).

For the first time, an extant histerid genus Horn, 1873 is described from a specimen found in mid-Cretaceous Kachin amber. sp. nov.

A New Subgenus and Species of from Mid-Cretaceous Kachin Amber (Coleoptera: Staphylinidae: Osoriinae).

As one of the largest families of beetles (Coleoptera), the Staphylinidae (rove beetles and their relatives) are rich not only in extant species but also in a comparatively robust fossil record. Despite this preponderance of available fossil material, fossils of the diverse subfamily Osoriinae remain rare. Here, we describe a new ososriine species, sp.

Fire-prone Rhamnaceae with South African affinities in Cretaceous Myanmar amber.

The rapid Cretaceous diversification of flowering plants remains Darwin's 'abominable mystery' despite numerous fossil flowers discovered in recent years. Wildfires were frequent in the Cretaceous and many such early flower fossils are represented by charcoalified fragments, lacking complete delicate structures and surface textures, making their similarity to living forms difficult to discern. Furthermore, scarcity of information about the ecology of early angiosperms makes it difficult to test hypotheses about the drivers of their diversification, including the role of fire in shaping flowering plant evolution.

A new species of the genus Apteroloma Hatch, 1927 (Coleoptera, Agyrtidae) from China.

A new species of the genus Apteroloma Hatch, 1927 is described from China: Apteroloma qiului sp. nov. from Hubei Province.

A new termitophilous genus and species of the tribe Amarygmini Gistel, 1848 from China (Coleoptera: Tenebrionidae).

A new genus and species, Termitocnemis huangi gen. et sp. nov.

Three new species of the genus Hexarhopalus Fairmaire, 1891 (Coleoptera, Tenebrionidae: Cnodalonini) from China.

Three new species of the genus Hexarhopalus Fairmaire, 1891 are described and figured from China: Hexarhopalus (Hexarhopalus) yunnanensis sp. nov. from Yunnan, Hexarhopalus (Hexarhopalus) zhuxiangi sp.

Zaitzevia tangliangi sp. nov. a new riffle beetle from China (Coleoptera:Elmidae: Macronychini).

A new riffle beetle of the genus Zaitzevia Champion, 1923, Z. tangliangi sp. nov.

New species and new distributional record of the genus emBroscosoma/em Rosenhauer, 1846 (Coleoptera, Carabidae, Broscinae) from China.

Two new species of the genus Broscosoma Rosenhauer, 1846 are described from China: Broscosoma guoliangi sp. nov. from Fujian Province and Broscosoma qiului sp.

emSphaeraphodius/em emgaohani/em, a new genus and species of Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae) from Guangxi, China.

Sphaeraphodius gaohani Kakizoe, Jiang Wang, a new genus and new species of the tribe Aphodiini, is described based on two female specimens from Guangxi, China. This new genus differs considerably from any previously known genera of Aphodiini by dorsally swollen body covered by considerably long setae, and lack of transverse setiferous carinae on outer surfaces of meso- and metatibiae. This new taxon is found sympatrically with the termite Macrotermes sp.

Description of the male of emPterorthochaetes/em emyunnanensis/em Ballerio, 2014 (Coleoptera: Scarabaeoidea: Hybosoridae: Ceratocanthinae).

The ceratocanthine genus Pterorthochaetes Gestro, 1898 (Coleoptera: Scarabaeoidea: Hybosoridae) includes about 26 valid species and occurs from the eastern Himalaya (Nepal and India) and southern China to northern Australia (Queensland) and Vanuatu Islands (Paulian 1978, 1987; Ballerio 1999, 2006, 2013, 2014).

New species and notes on Chinese species of the genus Misolampidius (Coleoptera: Tenebrionidae: Cnodalonini).

A new species of the genus Misolampidius Solsky, 1875, Misolampidius qiaoweipengi sp. nov. from Henan, China, is described.

Discovery of the genus Cycloxenus Arrow, 1925 (Coleoptera, Euxestidae) in mainland China, with the description of a new species.

The termitophilous genus Cycloxenus Arrow (Coleoptera, Euxestidae) is reported from mainland China for the first time. A new species, Cycloxenus guangxiensis sp. nov.