Taxonomic review of New World Tachyina (Coleoptera, Carabidae): descriptions of new genera, subgenera, and species, with an updated key to the subtribe in the Americas

By

Boyd, Olivia
Erwin, Terry Lee 1940-2020

Type

Article

Date of Publication

2016

Original Publication

ZooKeys

Volume

626

Pages

87-123

Subjects

Amazon Basin , Elaphropus , Meotachys , Nothoderis , Nototachys , Polyderidius , Polyderis , Stigmatachys , Tachyxysta

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.626.10033

 

Abstract

The classification of the carabid subtribe Tachyina (Trechitae: Bembidiini) is reviewed in light of newly discovered diversity from Central and South America. Described herein are three new genera (Tachyxysta gen. n., Stigmatachys gen. n., Nothoderis gen. n.), two new subgenera of Meotachys (Scolistichus subgen. n., Hylotachys subgen. n.), and two new subgenera of Elaphropus (Ammotachys subgen. n., Idiotachys subgen. n.). Two names previously synonymized under Polyderis (Polyderidius Jeannel, 1962) and Elaphropus (Nototachys Alluaud, 1930) are elevated to generic and subgeneric status, respectively. Eight new species are recognized: Tachyxysta howdenorum (type locality: México: Chiapas: El Aguacero, 680m); Elaphropus marchantarius (type locality: Brazil, Amazonas, Rio Solimões, Ilha de Marchantaria), E. acutifrons (type locality: Brazil: Pará, Santarém) and E. occidentalis (type locality: Perú: Loreto, Pithecia, 74°45'W 05°28'S); Stigmatachys uvea (type locality: Perú: Loreto: Campamento San Jacinto, 2°18.75'S, 75°51.77'W, 175–215m); and Meotachys riparius (type locality: Colombia: Amazonas: Leticia, 700 ft), M. ballorum (type locality: Brazil: Amazonas, Rio Negro Cucui), and M. rubrum (type locality: Perú: Madre de Dios: Rio Manu, Pakitza, 11°56°47'S 071°17°00'W, 356m). An updated key to the genera and subgenera of Tachyina occurring in the New World is provided, with accompanying illustrations.