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Chaetauchenium Tschitchérine, 1900 (Carabidae: Pterostichini) a new species and new status for a lineage from the Valdivian temperate rainforest

Author
Will,Kipling

Full text
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-65382011000200009
Abstract
A new species Chaetauchenium loki, is described from Parque Oncol in Chile. This species, C. convexipennis (Fairmaire) and Parhypates (Antarctobium) magellanicum (Fairmaire) share a combination of features distinct from all other species attributed to Parhypates and from all other species of South American Pterostichini. To reflect this, Chaetauchenium is elevated as a distinct genus and Antarctobium is considered congeneric. Individuals of these species have highly variable and unusual patterns of supernumerary or reduced numbers of setae and variation in secondary sexual characters. Males have denticulate and falciform aedeagal parameres and females have a digitiform diverticula at the base of the spermatheca. These genital and reproductive tract features are not known from any South American pterostichine species, but are found in many Australian, New Zealand and New Caledonian species.
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Discipline
Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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