Original paper
A new mud cricket species (Insecta: Orthoptera: Tridactyloidea: Ripipterygidae) from mid-Cretaceous Kachin amber in north Myanmar
Zhu, Xiuping; Li, Qijia; Xu, Chunpeng; Jarzembowski, Edmund A.; Fang, Yan; Zhang, Liyuan
Palaeontographica Abteilung A Band 327 Lieferung 1-3 (2023), p. 45 - 54
36 references
published: Jun 17, 2023
published online: Mar 7, 2023
manuscript accepted: Mar 1, 2023
manuscript received: Aug 31, 2022
Abstract
A new mud cricket species (Orthoptera: Tridactyloidea: Ripipterygidae), Archaicaripipteryx burmensis sp. nov., is described based on two well-preserved specimens from mid-Cretaceous Kachin amber. It can be distinguished from the type and only species Archaicaripipteryx rotunda Xu, Zhang & Jarzembowski, 2020 based on the following characteristics: interpupillary distance distinctly longer than the width of the compound eye; metatarsus forming triangular process apically without subapical denticular processes; ovipositor valves long and slender, length-width ratio about 7:1. The new finds provide novel information on early ripipterygids, suggesting an unexpected potential richness of Tridactyloidea in the Cretaceous. Additionally, a simple key to the modern and fossil genera and species of Ripipterygidae is provided.
Keywords
mid-Cretaceous • Kachin amber • Insecta • Orthoptera • Ripipterygidae