A new fossil Lucanidae subfamily (Coleoptera) from the Mesozoic of China

Abstract

Litholamprima longimana Nikolajev et Ren, gen. et sp. n. of the family Lucanidae is described from the Lower Cretaceous Yixian Formation. Fossils were collected from Chaomidian Village, Liaoning Province, China. The holotype of the new species is deposited in College of Life Science, Capital Normal University, Beijing. A new subfamily is established for this genus. Diagnosis of Litholampriminae subfam. n. Winged. Body elongate, large, about 17 mm (without mandibles). Antennae non-geniculate, with short scapus. Eyes entire, not divided by canthus. Pronotum wider than long. Scutellum triangular, wider than long. Elytra elongate, with faint striae. Procoxae wide separated. Prosternal process broad. Mesosternal process narrow, concealed by procoxae. Sexual dimorphism apparent in mandibles and fore legs. Male protibia is lengthy with flattened spur at apex.

Keywords

• Coleoptera
• Lucanidae
• new subfamily
• new genus
• new species
• fossils
• Mesozoic
• Yixian Formation
• China