Revision of Limnocoris Stål (Heteroptera: Nepomorpha: Naucoridae) of the Guiana Shield and Amazon regions

Abstract

The species of Limnocoris of the Guiana Shield and Amazon regions of South America are revised, including the descriptions of five new species: L. amazonensis n. sp., L. moreirai n. sp., and L. yanomami n. sp. from Brazil, L. flavescens n. sp. from Venezuela, and L. inflatus n. sp. from Suriname. Further, supplemental descriptions are provided for four previously described species: L. burmeisteri De Carlo, L. fittkaui De Carlo, L. menkei La Rivers, and L. surinamensis Nieser n. stat.; the latter was a subspecies and is here elevated to full species status. The following synonymies are proposed, with junior synonyms in brackets: L. burmeisteri De Carlo [L. lautereri Nieser, Chen & Melo n. syn.] and L. menkei La Rivers [L. birabeni De Carlo n. syn., L. bruchi De Carlo n. syn.]. An illustrated taxonomic key and distribution maps are also presented.

The Saucer Bugs (Hemiptera: Heteroptera: Naucoridae) of French Guiana

“…Distribution. Limnocoris burmeisteri occurs across the Guiana Shield from venezuela to French Guiana and south to the Brazilian states of Mato Grosso and tocantins (Rodrigues and Sites 2023). this is the first record of L. burmeisteri from French Guiana.…”

“…this subfamily is represented by only a single genus, Limnocoris. the Limnocoris fauna has been the subject of a multipart, geographically organized revision, including for north America (Rodrigues and Sites 2019) the tropical Andes (Rodrigues and Sites 2021), the Guyana Shield and Amazon region (Rodrigues and Sites 2023), with a southern South America final treatment in preparation. Currently, 75 species are known.…”

“…Limnocoris bachmanni De Carlo, 1967: 198-199 (synonomized by nieser andlópez-Ruf 2001). Limnocoris lautereri nieser, Chen and Melo, 2013: 336-341 (synonomized by Rodrigues andSites 2023).…”

“…Limnocoris menkei La Rivers 7,9,38,44) Limnocoris menkei la Rivers, 1962b: 195-196 (original description). Limnocoris birabeni De Carlo, 1967: 193-194 (synonymized by Rodrigues andSites 2023). Limnocoris bruchi De Carlo, 1967: 194-195 (synonymized by Rodrigues andSites 2023).…”

“…in a recent study, the genus Ambrysus was shown to be polyphyletic and was revised as four genera: Ambrysus, Australambrysus, Reynoso and , Maculambrysus, Reynoso and Sites, 2021, and Melloiella De Carlo, 1935(Reynoso-velasco and Sites 2021. the genus Limnocoris occurs in both north and South America and has been revised regionally for north America (Rodrigues and Sites 2019), the tropical Andes (Rodrigues and Sites 2021), the Guyana Shield and Amazon region (Rodrigues and Sites 2023), and another paper treats southern South America east of the Andes (nieser and lopez Ruf 2001).…”