Li Y I, Rasnitsyn Alexandr P, Shih Chungkun, Ren Dong, Wang Mei
Key Laboratory of Biodiversity Conservation of National Forestry and Grassland Administration; Ecology and Nature Conservation Institute; Chinese Academy of Forestry; Beijing 100091; China; College of Life Sciences; Capital Normal University; 105 Xisanhuanbeilu; Haidian District; Beijing 100048; China.
Palaeontological Institute; Russian Academy of Sciences; 123; Profsoyuznaya ul.; Moscow 117647; Russia; Department of Palaeontology; Natural History Museum; Cromwell Road; London SW7 5BD; UK.
Zootaxa. 2024 Dec 31;5562(1):107-121. doi: 10.11646/zootaxa.5562.1.13.
One new genus and two new species, Hemisyntexis lepida gen. et sp. nov., Eosyntexis conflata sp. nov., and new material of Parasyntexis khasurtensis Kopylov, 2019 are respectively described and illustrated based on three well-preserved compression fossils from the Lower Cretaceous Yixian Formation of northeastern China. Eosyntexis conflata sp. nov., placed in the genus Eosyntexis Rasnitsyn, together with H. lepida, belongs to the subfamily Syntexinae of Anaxyelidae. The new species provide important morphological characters to enhance our understanding of the subfamily Syntexinae, and to revise the diagnostic characters of Eosyntexis as well. Moreover, we carried out a comprehensive survey of all currently published extant and extinct species of Anaxyelidae to gain a better understanding of the trend of change for the forewing and body length. Furthermore, we formally documented that the Anaxyelidae had four different color patterns for the wings simultaneously in the Jehol Biota of the Lower Cretaceous.
基于来自中国东北下白垩统义县组的三块保存完好的压缩化石，分别描述并图示了一个新属和两个新物种，即丽色半合长节蜂属及种（Hemisyntexis lepida gen. et sp. nov.）、合并长节蜂（Eosyntexis conflata sp. nov.）以及2019年科皮洛夫记述的卡氏副长节蜂（Parasyntexis khasurtensis Kopylov）的新材料。合并长节蜂（Eosyntexis conflata sp. nov.）与丽色半合长节蜂属（H. lepida）同置于长节蜂属（Eosyntexis Rasnitsyn），属于三节叶蜂科（Anaxyelidae）的长节蜂亚科（Syntexinae）。这些新物种提供了重要的形态特征，有助于增进我们对长节蜂亚科的理解，同时也对长节蜂属的鉴别特征进行了修订。此外，我们对目前已发表的所有现生和已灭绝的三节叶蜂科物种进行了全面调查，以更好地了解前翅和体长的变化趋势。此外，我们正式记录了在早白垩世热河生物群中，三节叶蜂科同时具有四种不同的翅色模式。
