Data from: The deep-soil sampling in Chile revealed a new elateroid beetle lineage, Badmaateridae fam. nov. (Coleoptera)

Deep-soil arthropods remain one of the least studied components of
terrestrial biodiversity, and we present, as an exciting discovery, a new
endogean beetle collected by floating deep soil samples in Chile. We
analyzed a 4,203-ortholog dataset using both maximum likelihood and
coalescent methods to infer its relationships. Regardless of the
analytical setup, Badmaater was recovered as the sister to the clade
consisting of Lycidae, Cantharidae, Elateridae, and the lampyroids. The
distant position of Badmaater relative to the previously described
elateroid families is confirmed by additional analyses of differently
sampled, although less phylogenetically informative, 66-gene and
mitogenome datasets. As a result, we describe Badmaater chilensis sp. and
gen. nov. in Badmaateridae fam. nov. (Coleoptera: Elateroidea). Badmaater
resembles other clicking elateroids, but has a three-segmented antennal
club, slender palpi, and globular metacoxae that are situated close to
each other. It is blind, wingless, and extremely small-bodied. We date the
origin of Badmaateridae to the Triassic. The ancient origin of
Badmaateridae suggests that this lineage has probably survived all
disturbances shaping modern life, from the Triassic/Jurassic volcanic
activity to the end-Cretaceous asteroid impact and subsequent Cenozoic and
Quaternary climatic fluctuations. However, Badmaateridae is now one of the
few beetle families with only a single species restricted to a narrow
range. Deep-soil dwelling Badmaater survived in a relatively high-latitude
area periodically affected by close glaciers and separated from the
tropics by an arid zone. Badmaater, as a wingless deep-soil beetle
occurring in a restricted area, has a limited dispersal propensity and
consequently faces an inherent risk during turbulent environmental
changes.