First fossil jacobsoniid beetle (Coleoptera): Derolathrus groehni n. sp. from Eocene Baltic amber

Chenyang Cai; Richard A. B. Leschen; Ye Liu; Diying Huang

doi:10.1017/jpa.2015.65

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Chenyang Cai,¹ Richard A. B. Leschen,² Ye Liu,³ Diying Huang⁴

¹Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China ⟨ ⟩ caichenyang1988@163.com
²Landcare Research, New Zealand Arthropod Collection, Private Bag 92170, Auckland, New Zealand ⟨ ⟩ leschenr@landcareresearch.co.nz
³Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China ⟨ ⟩ liuye198282@126.com
⁴State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China ⟨ ⟩ dyhuang@nigpas.ac.cn

Abstract

Jacobsoniidae, comprising a small group of small-to-minute polyphagan beetles, is a family presently placed within Derodontiformia. No fossil jacobsoniid has been described to date. Here, we describe the first fossil jacobsoniid, Derolathrus groehni n. sp., based on two well-preserved individuals in middle Eocene Baltic amber. Micro—computed tomography (micro-CT) was used to reveal many diagnostic characters of the Recent genus Derolathrus Sharp. Derolathrus groehni is compared with modern Derolathrus species and is noteworthy for the well-developed eyes and elongate prothorax.

Citation Download Citation

Chenyang Cai, Richard A. B. Leschen, Ye Liu, and Diying Huang "First fossil jacobsoniid beetle (Coleoptera): Derolathrus groehni n. sp. from Eocene Baltic amber," Journal of Paleontology 89(5), 762-767, (1 September 2015). https://doi.org/10.1017/jpa.2015.65

Published: 1 September 2015

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