Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae) Author Giron, Jennifer C. https://orcid.org/0000-0002-0851-6883 Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA entiminae@gmail.com Author Short, Andrew Edward Z. Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA text ZooKeys 2018 2018-06-19 768 113 158 http://dx.doi.org/10.3897/zookeys.768.24423 journal article http://dx.doi.org/10.3897/zookeys.768.24423 1313-2970-768-113 399BCC3E9D6F4231870E05C79B9FD4B0 CB01CA30FFB4F96DFFA2FF86FFAEFFB6 1298776 Crucisternum sp. Material examined (8). BRAZIL : Para : " Rio Xingu Camp 52°22'W , 3°39'S / ca 60km S. of Altamira; 3.x.1986 / leg. P. Spangler & O. Flint ; Colln. #6;/ 1st jungle stream on trail 1" (6; USNM; unassociated females; likely either C. sinuatus or C. xingu ) ; Roraima : Amajari : Serra do Tepequem , Igarape Preto Negro , Quebrada do Canara , 3°46.715'N , 61°45.405'W , 637 m , 14.i.2018 , forested stream, Short , Benetti & Santana, BR 18-0114-05A (1, SEMC) . FRENCH GUIANA : Roura : "[ Patawa : crique/ Diamant ]/ 16.xi.2007 / P. Queney rec." (1, SEMC; unassociated female; likely either C. ouboteri or C. queneyi ); "[ Patawa : ru]/ 19.xi.2007 / P. Queney rec." ; "[N2, PK 73,5: petite crique accidentee , 250m ]/ 23.xi.2007 / P. Queney rec." (1, SEMC; unassociated female; likely either C. ouboteri or C. queneyi ) . SURINAME : Sipaliwini district : " 3°47.479'N , 56°08.968'W , 320 m / CSNR: near Kappel airstrip/ at Tafelberg trail, in creek/ leg. Short & Bloom ; 13.viii.2013 ; SR13-0813-06B" (1, SEMC; unassociated female; likely either C. ouboteri or C. vanessae ) . Remarks. Given our current inability to identify some species based only on external characters, these unassociated females could not be identified with confidence, especially in the localities where more than one species are known to occur.