A new species of Stethelmis Hinton (Coleoptera: Elmidae) from Argentina and description of its larva

Abstract

A new species of Stethelmis, S. shepardi sp. nov., is described for Patagonia, Argentina from adults of both sexes. A full description and illustrations of both the adult and the larva of the new species are provided with comments on its habitat and distribution. Adults of the new species are compared with those of S. kaszabi (Hinton 1970) and S. chilensis (Hinton 1945). The larva of S. shepardi is compared with that of S. kaszabi, the other Stethelmis larva described. We also describe and illustrate for the first time the male genitalia of S. kaszabi. A key to the known species of Stethelmis is also included.

La familia Elmidae (Insecta: Coleoptera: Byrrhoidea) en Colombia: riqueza taxonómica y distribución

“…Amazonas Orinoco en trabajos ecológicos y, según Sondermann (2013), Kodada, et al (2016) y lo hallado en el presente estudio, no se encuentran en Colombia. Este es el mismo caso de los géneros Luchoelmis y Stethelmis, los cuales son endémicos de la Patagonia de Argentina y Chile (Archangelsky & Manzo, 2007;Archangelsky & Brand, 2014;Martínez-Román, et al, 2019). La familia Elmidae se ha registrado en el área insular de Cuba, Dominica, Granada, Guadalupe, Jamaica, La Española (Haití y República Dominicana), Martinica, Puerto Rico, Santa Lucía, San Vicente y Las Granadinas, y Trinidad y Tobago, entre otras islas de Las Antillas (Jäch, et al, 2016).…”

A revision of Onychelmis Hinton, 1941 (Coleoptera: Elmidae), with description of new species, DNA barcoding and notes on the geography of the genus

“…Numerous recently published descriptions of new species document the high diversity of Elmidae in the Neotropical region (e.g., Manzo & Archangelsky 2015;Passos et al 2015;Čiampor et al 2016;Shepard & Barr 2016;Barr 2018;Martínez-Román et al 2019;Polizei et al 2020), and although our knowledge of the elmid fauna of the tropics improves and interest in riffle beetle taxonomy grows, the information on the real diversity of the family is still far from complete.…”