The first stygobiont species of Coleoptera from Portugal, with a molecular phylogeny of the Siettitia group of genera (Dytiscidae, Hydroporinae, Hydroporini, Siettitiina)

By

Ribera, Ignacio
Reboleira, Ana Sofia P. S.

Type

Article

Date of Publication

2019

Original Publication

ZooKeys

Volume

813

Pages

21--38

Subjects

Diving beetles groundwater new spe

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.813.29765

 

Abstract

Iberoporusplutosp. n., the first stygobiont beetle from Portugal (Dytiscidae, Hydroporinae), is described from a single female from the cave Soprador do Carvalho (Coimbra). The species is highly troglomorphic, depigmented, blind, and with elongated appendages not adapted for swimming. A molecular phylogeny based on a combination of three mitochondrial and two nuclear genes showed the new species to be sister toI.cermeniusCastro & Delgado, 2001 from Córdoba (south of Spain), within the subtribe Siettitiina of the tribe Hydroporini. Both species are included in a clade withSiettitiaavenionensisGuignot, 1925 (south of France) andRhithrodytesagnusFoster, 1992 andR.argaensisFery & Bilton, 1996 (north of Portugal), in turn sister to the rest of species of genusRhithrodytesBameul, 1989, in what is here considered theSiettitiagroup of genera. We resolve the paraphyly ofRhithrodytesby transferring the two Portuguese species toIberoporusCastro & Delgado, 2001,I.agnus(Foster, 1992),comb. n.andI.argaensis(Fery & Bilton, 1996),comb. n.