Work

Chunxiangus shii gen. et sp. nov., a new genus and species of Umenocoleidae (Dictyoptera) from mid-Cretaceous Kachin amber

Year: 2025

Type: article

Abstract: Umenocoleidae is a mysterious and extinct Mesozoic beetle-like roach family.Its systematic position was highly disputed for decades.In this study, a new genus and species of Umenocoleidae, Chunxiangus shii gen.et sp.nov., is described based on a well-preserved adult from mid-Cretaceous Kachin amber of northern Myanmar.The new genus mainly differs from the other genera in the ratio of the width of the head and pronotum, anterior margin of pronotum round and posterior margin slightly convex, pronotum and head without distinct cup-shaped punctures, and covered with dense short setae, the forewing veins reduced and without distinct colour pattern.The presence of the cup-shaped punctures on the forewings but the absence of the distinct cupshaped punctures on the head and pronotum may be the autapomorphy of Chunxiangus gen.nov.

Source: Palaeontologia Electronica

DOI: 10.26879/1568

Authors: Deqiong Luo, Chuantao Xiao, Cihang Luo

Institutions: Yangtze University, State Key Laboratory of Palaeobiology and Stratigraphy, Chinese Academy of Sciences, Nanjing Institute of Geology and Paleontology

Language: English

Topic: Fossil Insects in Amber

Subfield: Ecology, Evolution, Behavior and Systematics

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, International Science and Technology Cooperation Programme

Awards: G1536604302, G8099968031