A synopsis of Martarega White, 1879 (Insecta: Heteroptera: Notonectidae) occurring in the Brazilian Amazonia, with descriptions of three new species Author Barbosa, Julianna Freires Author Ribeiro, José Ricardo Inacio Author Nessimian, Jorge Luiz text Journal of Natural History 2012 2012-05-31 46 17 - 18 1025 1057 http://dx.doi.org/10.1080/00222933.2011.651645 journal article 10.1080/00222933.2011.651645 1464-5262 5199782 Martarega williamsi Truxal, 1949 ( Figures 9A–C , 14B) Martarega williamsi Truxal, 1949: 13 [ Panamá , Brazil , Ecuador , Peru ]. Martarega williamsi : Nieser 1970: 72 [ Brazil ]. Martarega williamsi : Nieser 1975: 205 [ Panamá , Brazil , Ecuador , Peru ]. Martarega williamsi : Froeschner 1981: 60 [ Ecuador ]. Martarega williamsi : Heckman 2011: 491 [South America]. No specimens were collected in the regions sampled, but the species was recorded from the northern South American continent and Panama . Martarega williamsi is easily recognized by (1) the presence of one or two groups of short bristles near outer lateral margin and (2) two stripes extending onto hemelytra, one short and median longitudinal stripe and other along costal margin ( Figure 9 ).