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.
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 (Tachyxystagen. n.,Stigmatachysgen. n.,Nothoderisgen. n.), two new subgenera ofMeotachys(Scolistichussubgen. n.,Hylotachyssubgen. n.), and two new subgenera ofElaphropus(Ammotachyssubgen. n.,Idiotachyssubgen. n.). Two names previously synonymized underPolyderis(PolyderidiusJeannel, 1962) andElaphropus(NototachysAlluaud, 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),Elaphropus acutifrons(type locality: Brazil: Pará, Santarém) andElaphropus 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); andMeotachys riparius(type locality: Colombia: Amazonas: Leticia, 700 ft),Meotachys ballorum(type locality: Brazil: Amazonas, Rio Negro Cucui), andMeotachys 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.
Department of Integrative Biology, Oregon State University, Corvallis, OR 97331 USA.
Olivia F
OF
Boyd
Department of Entomology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, D.C. 20013-7012 USA.
Terry L
TL
Erwin
Amazon basin; Elaphropus; Meotachys; Nothoderis; Nototachys; Polyderidius; Polyderis; Stigmatachys; Tachyxysta