Hydrodessus ducke sp. n. and new records of other species of the genus (Coleoptera, Dytiscidae, Bidessini) Author Benetti, Cesar J. Author Michat, Mariano C. Author Hamada, Neusa text Zootaxa 2020 2020-02-24 4743 1 47 60 journal article 10.11646/zootaxa.4743.1.4 71f9dd38-f9b3-432d-87d0-f3428ac1f0be 1175-5326 3687626 63D7BE74-E248-4D1E-92A7-D5288170DB13 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.