Hydrodessus biguttatus ( Guignot, 1957 )

Benetti, Cesar J., Michat, Mariano C. & Hamada, Neusa, 2020, Hydrodessus ducke sp. n. and new records of other species of the genus (Coleoptera, Dytiscidae, Bidessini), Zootaxa 4743 (1), pp. 47-60 : 50

Hydrodessus biguttatus ( Guignot, 1957)

Material examined. Brazil: Amazonas State, Barcelos County, “ Base da Serra do Aracá , Igarapé s/ nome, mar- gem esquerda do Ig. da Cobra ” (00º52’13”N 63º27’13”W) ; 147 m a.s.l.; 02.viii.2009; leg. N. Ferreira Jr., J. Nessimian, F. Salles, A. Santos, U. Neiss, J. Silva ( INPA, 3) . “Base da Serra do Aracá, Igarapé da Anta (00º52’31”N 63º27’31”W); 113 m a.s.l.; 30.vii.2009; leg. N. Ferreira Jr., J. Nessimian, F. Salles, A. Santos, U. Neiss, J. Silva ( INPA, 1) . São Gabriel da Cachoeira County, “ rio Querari ” (01º05’N 69º51’W) ; 07.iv.1993; leg. C. Motta, R. Ferreira, J. Vidal, B. Matteo ( INPA, 1) .

Distribution. Brazil (Amazonas*, Pará, São Paulo), Guyana (Mazaruni-Potaro District), Suriname (Sipaliwini District) and Venezuela (Amazonas) ( Miller 2016) ( Fig. 17 ).

Habitat. Specimens have been collected from blacklights in tropical forests and from the margins of a river and a flooded forest stream ( Miller 2016). Specimens from Brazil were collected in forest streams at 113–147 m a.s.l.

Figures

FIGURE 17. Hydrodessus species, distributions. Star: H. biguttatus; circle: H. octospilus; square: H. keithi; triangle: H. brasiliensis; hexagon: H. pereirai; inverse triangle: H. latotibialis. Open symbols (previous records), solid symbols (new records).