Aethus americanus Stål, 1860: 12 Walker, 1867: 152 Stål, 1876: 19 Signoret, 1883: 34 Lethierry & Severin, 1893: 72 Froeschner, 1960 : 585 Cydninae (Hemiptera, Heteroptera, Cydnidae) in Brazil: updated checklist, new records, and description of Tominotus ondulatus sp. nov. Avendaño, José Mauricio Grazia, Jocelia Schwertner, Cristiano Feldens Zootaxa 2017 2017-10-09 4329 5 401 435 (Stal) Stal [151,694,1860,1886] Insecta Cydnidae Dallasiellus Animalia Hemiptera 14 415 Arthropoda species americanus Ecarinoceps  ( Figs. 7, 8B)      Aethus americanusStål, 1860: 12; Walker, 1867: 152.   Macroscytus americanus: Stål, 1876: 19.    Geotomus americanus: Signoret, 1883: 34; Lethierry & Severin, 1893: 72.  Dallasiellus (Ecarinoceps) americanus:  Froeschner, 1960: 585.    Material examined:  1 specimen, PA, Prainha,  06-Jan-1920, Mendescol., MNRJ;  1 specimen,  RJ, Petrópolis, Alto Mosela,  23-Feb-1956, D'Albuquerquecol., MNRJ;  4 specimens, Petrópolis, Alto Mosela,  01-Mar-1957, MNRJ;  1♀,  SP, Luiz Antonio,  13-Aug-2008, Perioto Ncol., UNIFESP;  1♀, RS, Cachoeirinha,  09-Feb-1981, M.H. Galileocol., MCNZ;  1♀, Itaúba,  06-Apr-1978, E.H. Buckupcol., MCNZ;  1♀, Porto Alegre,  30-Oct-1973, Cesar Troiscol., MCNZ.   Distribution:Brazil (PA new rec., RJ, SP new rec., SC, RS new rec.).   Remarks:The two species of the subgenus that present the evaporatorium not attaining the mesopleural lateral margin; can be differentiated for the number of secondary setigerous punctures on the submargin of mandibular plates along with the mesocorium surface, which is almost impunctate in  D. americanus( Fig. 8B) with only one primary setae close to the eye, while in  D. foratusis coarsely punctate and presents three secondary submarginal setigerous punctures on each mandibular plate. 2640315316 [392,1061,246,271] 1920-01-06 MNRJ Mendes Brazil Prainha 15 416 1 Material Examined 2640315433 1956-02-23 MNRJ D'Albuquerque Brazil Alto Mosela Petropolis 15 416 1 RJ 2640315483 [743,1432,279,304] 1957-03-01 MNRJ Brazil Alto Mosela Petropolis 15 416 4 Feb- 2640315449 [151,857,313,338] 2008-08-13 Perioto N Brazil Luiz Antonio Luiz Antonio 15 416 2 1 Mar- 2640315399 1981-02-09 MCNZ M. H. Galileo Brazil Cachoeirinha 15 416 1 1 Cachoeirinha 2640315301 [301,882,346,371] 1978-04-06 MCNZ E. H. Buckup Brazil Itauba 15 416 1 1 Cachoeirinha 2640315393 1973-10-30 MCNZ Cesar Trois Brazil Porto Alegre Porto Alegre 15 416 1 1 Porto Alegre