Subfamily Anischiinae (Coleoptera: Eucnemidae) in Early Cretaceous of Northeast China
Subfamily Anischiinae (Coleoptera: Eucnemidae) in Early Cretaceous of Northeast China
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DOI：
10.3390/insects12020105
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Dong Ren
中科院分区：
文献类型：
--
作者：
Haolun Li;Huali Chang;Jyrki Muona;Yanchen Zhao;Dong Ren
Rheanischia new genus, type species Rheanischia brevicornis new species (Eucnemidae, Anischiinae) is described from the Lower Cretaceous of Liaoning, China. The presence of this species in early Cretaceous deposits provides new insight into the evolution of basal lignicolous Eucnemidae clades. Both Anischiinae and Palaeoxeninae species diversified in a world dominated by gym-nosperms, before the main radiation of angiosperms. More than 95% of modern eucnemid larvae have a Palaeoxenus-type highly modified head structure, but contrary to the Palaeoxenus larva, they develop in angiosperm wood. Anischiinae utilize angiosperms as well, but their head capsule shows no such modifications. These facts prove that highly specialized morphological features do not offer definite proof of similar way of life in the distant past, nor should non-modified structures be taken as proof for another kind of substrate choice. Eucnemidae have invaded angiosperms with two quite different morphological adaptations. This fact may have implications for the evolution of all clicking elateroids.
