First record of (Hemiptera, Scytinopteroidea, Scytinopteridae) from the Middle Triassic Tongchuan Entomofauna of China.

A new scytinopterid species, , is established based on a tegmen collected from the Middle Triassic Tongchuan Formation in Shaanxi Province, NW China. The new species can be easily separated from its congeners by the narrow tegminal apex, less curved terminal branches of stems RP, M and CuA and crossvein - connected to long vein M. This discovery represents the first record of from the Tongchuan Formation in China and suggests that the genus spread much more widely from Gondwana to northern Pangea in the Middle Triassic.

On the nomenclatural status of type genera in Coleoptera (Insecta).

More than 4700 nominal family-group names (including names for fossils and ichnotaxa) are nomenclaturally available in the order Coleoptera. Since each family-group name is based on the concept of its type genus, we argue that the stability of names used for the classification of beetles depends on accurate nomenclatural data for each type genus. Following a review of taxonomic literature, with a focus on works that potentially contain type species designations, we provide a synthesis of nomenclatural data associated with the type genus of each nomenclaturally available family-group name in Coleoptera.

The family Polycentropodidae (Insecta, Trichoptera) in mid-Cretaceous Burmese Amber.

Three described species, , , and , expand the cluster to six species dominating the Polycentropodidae in Burmese amber. The new species and of the cluster add to the comparatively low occurrence of Polycentropodidae in Burmese mid-Cretaceous amber.

A new macrolepidopteran moth (Insecta, Lepidoptera, Geometridae) in Miocene Dominican amber.

A new genus and species of fossil moth, Zhang, Shih & Shih, , assigned to Geometridae, is described from Miocene Dominican amber dating from 15-20 Mya. The new genus is characterized by the forewing without a fovea, R not anastomosing with Sc, no areole formed by veins R and Rs, R and Rs completely coincident, M arising midway between M and M, anal veins 1A and 2A fused for their entire lengths; and the hind wing with Rs running close to Sc + R and M absent.

Rediscovered and new perisphaerine cockroaches from SW China with a review of subfamilial diagnosis (Blattodea: Blaberidae).

The taxonomic records of Chinese perisphaerine cockroaches were scattered in literature, and therefore a dedicated study is desired to update our knowledge. This paper reviews the subfamilial diagnosis and Chinese species, mostly from southwestern China. We provide high-definition habitus photos and drawings, the latter emphasizes the genitalia of both sexes, which are generalized with diagrams, abstracted from specimens examined.