Terrestrial Isopoda (Crustacea, Oniscidea) from the coasts of Costa Rica, with descriptions of three new species

Abstract

Seven species of terrestrial isopods are recorded from the coasts of the Pacific and Caribbean sides of Costa Rica. Three species (Buchnerillo neotropicalis, Hawaiioscia nicoyaensis and Trichorhina biocellata) are described as new and two species (Tylos niveus and Armadilloniscus cf. caraibicus) are newly recorded from the country. The poorly known species T. niveus is also illustrated. At present the total number of terrestrial isopod species recorded from Costa Rica is 30. Interestingly four typical littoral halophilic species (Ligia baudiniana, Tylos wegeneri, T. niveus and A. cf. caraibicus) are present on both the Pacific coast of Costa Rica and on the coasts of the lands encompassed by the Caribbean Sea. With the sole exception of A. cf. caraibicus, no morphological differences could be detected from the Pacific and Caribbean populations of those species. Rev. Biol. Trop. 66(Suppl. 1): S187-S210. Epub 2018 April 01.

A glimpse into a remarkable unknown diversity of oniscideans along the Caribbean coasts revealed on a tiny island

“…(Silva & Alves 2000). It is also present on the Pacific coast of Costa Rica (Taiti et al 2018). First record of the species for continental islands of the Colombian Caribbean.…”

Terrestrial isopods (Isopoda: Oniscidea) of the Botanical Garden of Cartagena “Guillermo Piсeres”, Colombia, with the description of three new species

“…Pleopod 5 exopod (Fig. 50) [Schmalfuss, 2003;Boyko et al, 2008a;Souza et al, 2011;Campos-Filho et al, 2014;Taiti et al, 2018]. In Colombia, only T. papillosa (Budde-Lund, 1893) is recorded from Medellín, department of Antioquia.…”

Buchnerillo atlanticus sp. nov., a new halophilic woodlouse (Isopoda: Oniscidea: incertae sedis) from the Atlantic coast of the Iberian Peninsula, with ecological remarks

“…Buchnerillo atlanticus, B. litoralis and B. oceanicus share the lack of schisma in the first pereontergite and presence of a short lobe in its ventral part. Finally, B. atlanticus is also distinguished from B. neotropicalis by the absence of schisma in the first pereon-tergite and by the shape of the male first pleopods, among other characteristics (Taiti et al 2018). The most distinctive morphological features of the four known species of Buchnerillo are presented in Table 1.…”