Review of the species of Pelodiaetodes Moore (Coleoptera: Carabidae: Bembidiini: Anillina) of New Zealand

Abstract

Four new species of the formerly monotypic genus Pelodiaetodes are described from New Zealand. Three of them: P. constricticollis, sp. n., P. moorei, sp. n., and P. aldermensis, sp. n., occurring on the North Island, are morphologically similar to the type species, P. prominens Moore. The fourth species, P. nunni, sp. n., occurring on the South Island, is morphologically distinct from the nominotypical species group. A new subgenus, Monosetodes, subgen.n., is proposed to accommodate P. nunni within Pelodiaetodes. Redescriptions of the genus and the type species are given based on new morphological data, and a taxonomic key as well as a distribution map for all known species are provided. Some biogeographical aspects of the evolutionary history of Pelodiaetodes and its morphological relatives from Madagascar, Australia and New Zealand are discussed.

Speciation below ground: Tempo and mode of diversification in a radiation of endogean ground beetles

“…The endogean subtribe Typhlocharina (Coleoptera: Carabidae: Trechinae) is part of the tribe Anillini, which includes about five hundred species of litter‐, soil‐ and cave‐dwelling beetles (Lorenz, ; Sokolov, ) widely distributed in all continents except Antarctica. Within Anillini, Typhlocharina is the most diverse lineage, with 62 described species.…”

“…Trechinae) is part of the tribe Anillini, which includes about five hundred species of litter-, soil-and cave-dwelling beetles (Lorenz, 2005;Sokolov, 2015) widely distributed in all continents except Antarctica.…”

A review of the genus Pelodiaetus Jeannel (Coleoptera, Carabidae, Anillini) of New Zealand, with re-description of the genus, description of a new species, and notes on the evolutionary history

“…The terms used in the paper and the scheme of descriptions follow that of the author's previous publications on New Zealand Anillini (Sokolov 2015(Sokolov , 2016. Numbering of the umbilicate pores of elytra follows that of Erwin (1974) and Giachino and Vailati (2011).…”

“…One more piece of evidence of the persistence of the representatives of the Pelodiaetus lineage in Zealandia is the geographical distribution of the members of Pelodiaetodes, presumably the sister-taxon to Pelodiaetus (Sokolov 2015). Externally, besides their large size, the members of Pelodiaetodes can be distinguished from the members of Pelodiaetus only by the well-developed denticle anterior to the posterolateral angles of the pronotum.…”

Hidden biodiversity: total evidence phylogenetics and evolution of morphological traits in a highly diverse lineage of endogean ground beetles,TyphlocharisDieck, 1869 (Carabidae, Trechinae, Anillini)

“…The tribe Anillini (Coleoptera, Carabidae, Trechinae), with roughly 530 species of litter‐, soil‐ and cave‐dwelling beetles (Zaballos, ; Lorenz, ; Sokolov, ), is the richest carabid lineage exclusively composed of belowground species. Anillini are adapted to the absence of light, buffered temperature fluctuations, high humidity and spatial limitations imposed by the soil environment and, consequently, show typical morphological features of the endogean fauna: small body size (from 0.9 mm in some species of Argiloborus Jeannel, and Typhlocharis Dieck, to 4.5 mm in Perucharidius Mateu and Etonti, ; Pérez‐González and Zaballos, ), depigmentation, apterism, absence of eyes (except Nesamblyops Jeannel, ; Cryptorites Jeannel, 1950 and Microdipnodes Basilewsky, ; with small eyes; Jeannel, ; Basilewsky, ) and a well‐developed system of long sensorial setae in the lateral margins of elytra (the umbilicate series, Jeannel, ), expressed in different patterns (Giachino and Vailati, ).…”