New Fossil Elaterids (Coleoptera: Polyphaga: Elateridae) from the Jehol Biota in China

Abstract

Three new genera and six new species of fossil elaterids of the tribe Desmatini Dolin, 1975 from second Bed of the Upper Jurassic-Lower Cretaceous Yixian Formation in Huangbanjigou, Liaoning Province, China are described: Paradesmatus dilatatus sp. nov., Desmatinus cognatus gen. et sp. nov., Apoclion clavatus gen. et sp. nov., A. dolini gen. et sp. nov., A. antennatus gen. et sp. nov. and Anoixis complanus, gen. et sp. nov. This tribe demonstrates some characters similar to those in Throscidae and Eucnemidae, elucidating the evolutionary process of the Elateroidea. New materials make clear the distinctness of the genera related to DesmatusDolin, 1975 (tribe Desmatini) from all other Elateridae. Tetraraphes ebersiniIablokoff-Khnzorian, 1961 could be regarded somewhat nearby the subfamily Protagrypninae; however, this species seems to be similar to some Cenozoic groups rather than any of Mesozoic groups.

Chinese Cretaceous larva exposes a southern Californian living fossil (Insecta, Coleoptera, Eucnemidae)

“…The rich Jehol invertebrate fauna has not been studied as intensely as the vertebrate fauna (Zhou et al, 2003). Insects are commonly found in the beds and the biota is known to be rich in elateroid-like beetles (Chang et al, 2010).…”

“…10.40) report a 90‐Myr eucnemid fossil from New Jersey amber, but the picture depicts a member of the family Cerophytidae.] Fossils described as click‐beetles (Elateridae) are common in Middle Jurassic and Cretaceous deposits (Chang et al., , ). Placement of these fossils is problematic, however, as all known elaterid synapomorphies are internal and many eucnemid synapomorphies are larval or internal (Muona, ; Otto and Young, ; Lawrence et al., ).…”

Fossil Genera in Elateridae (Insecta, Coleoptera): A Triassic Origin and Jurassic Diversification

“…Gender: masculine. Type species: Desmatinus cognatus Chang, Kirejtshuk & Ren, 2010: 869 [ 25 ]; by original designation. Cretaceous of China (125.5–122.5 Ma).…”

“…Literature. Chang et al (2010: 868) [ 25 ], Dong & Huang (2011: 1225) [ 79 ], Yu et al (2019: 383) [ 80 ].…”

“…Literature. Dolin (1975: 60) [ 19 ], Dolin (1980: 64) [ 13 ], Carpenter (1992: 304) [ 38 ], Korneev & Cate (2005: 10) [ 46 ], Chang et al (2008: 60) [ 81 ], Chang et al (2009: 8) [ 17 ], Chang et al (2010: 869) [ 25 ].…”