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 Since the late twentieth century, palaeontological and geological evidence from East Asia has contributed to significant advances in the understanding of the Mesozoic world. Geological Society Special Publication 521 covers a wide range of topics that subdivide into four themes. These include: (1) clues and evidence from vertebrate fossils; (2) clues and evidence from invertebrate and plant fossils; (3) significant fossils from amber; and (4) palaeoenvironments and palaeoecosystems. The volume features 18 articles by 53 authors from different disciplines, including geochronology, palaeontology, stratigraphy, sedimentology, tectonics and geochemistry.