Abstract Studies of Triassic insects in China began in 1956, and, so far, a total of 89 genera and 109 species have been found from the Triassic of China. The fossil records from 17 provinces (or regions) in China are assigned to 11 orders, except for two genera and species considered incertae sedis in Insecta. These Chinese Triassic insects, including one Early Triassic, 53 Middle Triassic and 55 Late Triassic species, are briefly reviewed in taxonomy and distribution, and listed here with detailed taxonomic and stratigraphic information. The Middle Triassic Tongchuan and Late Triassic Toksun entomofaunas are introduced in detail from the perspectives of composition and taxonomy. Existing data indicate that the Chinese Triassic entomofauna is dominated by Hemiptera, Mecoptera and Coleoptera; the Chinese Early Triassic insects are only known from Fuyuan in Yunnan Province, Middle Triassic insects are mainly known from northern China and sporadically from Guizhou Province, southern China, and Late Triassic insects are seen widely in both northern and southern China. The Middle and Late Triassic entomofaunas have a similar abundance but show a pattern of being more common in northern China than in southern China.

Abstract Zhangsolva is the type genus of the extinct long proboscis family Zhangsolvidae, originally known as a compression fossil from the Laiyang Formation, China. Here we describe a new species Zhangsolva burmensis sp. nov in Cretaceous amber from northern Myanmar. Antennae of zhangsolvids are discussed, and a proposed antennal segmentation of Zhangsolva cupressa is given. Anatomical features of the proboscis are interpreted based on exceptional preservation of the holotype, which are identical to flower-visiting bombyliid flies. This discovery provides important characters for further phylogenetical analysis of the Zhangsolvidae and important evidence for the proboscis function in pollination.

Abstract A new female wasp from Cenomanian Burmese amber was described as Peleserphus qufuensis sp. nov. in the proctotrupoid family Peleserphidae, which emerged in the Late Jurassic–mid-Cretaceous. It provides new data on the diversity of the family in Cenomanian Burmese amber and extends the records to five species.

Abstract A new ommatin beetle, Omma ( Coronomma ) axsmithi subgen. et sp. nov. (Insecta: Coleoptera: Archostemata: Ommatidae sensu stricto (Cupedidae sensu lato )) is described in mid-Cretaceous Kachin amber from northern Myanmar. The new taxon distinctly differs from nominotypical Omma in possessing a subquadrilateral v. subglobose pronotum, the latter visible in Omma lii from the same deposit. The uniquely preserved male genitalia of the latter are compared and contrasted with extant ommatins and fossil notocupedins. This new analysis suggests that the living Australian ommatin beetles ( Omma , Beutelius ) may not be as ancient as is sometimes supposed.

Abstract Hemiphlebiidae are the most basal lestomorphan family following the latest phylogenetic analysis of the Zygoptera: this unique damselfly family today contains one relict species found in the wetlands of Australia. It was, however, very diverse and widespread during the Mesozoic. Nevertheless, very few species were known, obscuring the origination and early evolution of the family. Here we propose a new stem hemiphlebioid taxon (Protohemiphlebiidae Zheng, Jarzembowski and Nel, fam. nov.) based on a new genus and two species: Protohemiphlebia zhangi Zheng, Jarzembowski and Nel, sp. nov. and Protohemiphlebia meiyingae Zheng, Jarzembowski and Nel, sp. nov. The new family shares the characteristics of both Hemiphlebiidae and Coenagrionoidea, but it is more closely related to Hemiphlebiidae in having the pterostigma with a ‘star-shaped’ microsculpture and AA originating from the wing base slightly distal of Ax0. Protohemiphlebia Zheng, Jarzembowski and Nel, gen. nov. is further considered to belong to the stem group of Hemiphlebioidea, instead of belonging to the Hemiphlebiidae, in possessing pretibial combs and a weakly kinked RP1 below the Pt brace. The new damselflies will help to calibrate the origin of Hemiphlebiidae, which could be earlier than the current oldest records in the Kimmeridgean (Late Jurassic).