Bidessonotus paludicolus Young, 1990

Miller, Kelly B., 2016, New species of Bidessonotus Regimbart, 1895 with a review of the South American species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini), ZooKeys 622, pp. 95-127 : 111

Taxon classification Animalia Coleoptera Dytiscidae

Bidessonotus paludicolus Young, 1990 Figs 24, 30

Bidessonotus paludicolus Young, 1990: 372; Nilsson 2016: 99.

Diagnosis.

Specimens are relatively darkly colored with the posterior surface of the head brown and the elytra evenly dark brown. The prosternal process is narrow and slightly sulcate. The male median lobe has the apical blade narrow ventrally and evenly and broadly expanded dorsally with the dorsal margin broadly truncate (Fig. 24a,d). The right lateral lobe has the apical segment very broad, relatively short and apically broadly rounded (Fig. 24b). The left lateral lobe has the apical segment short, broad and apically very broadly rounded (Fig. 24c).

Discussion.

Young (1990) regarded this species as similar to Bidessonotus mexicanus from Mexico and Central America, but it is not well known.

Distribution.

Young (1990) reported the species from Costa Rica and Mexico, but also from Venezuela (Guarico) (Fig. 30). No additional specimens were examined for this project.