First report of Rhodnius montenegrensis (Hemiptera, Reduviidae, Triatominae) in the State of Acre, Brazil

Abstract

Introduction: This paper reports, for the fi rst time, the presence of Rhodnius montenegrensis in the State of Acre, Brazil. Methods: Two female R. montenegrensis were collected in a dwelling in the rural area of Rio Branco, Acre, Brazil. Results: The occurrence of this species was confi rmed, and the number of Triatominae species in the State of Acre increased from four to fi ve. Conclusions: Further studies should be performed to reach a clearer understanding of the ecology of this arthropod, its possible role in transmitting Chagas' disease and rangeliosis, and its current geographical distribution in the region.

First report of Rhodnius stali (Hemiptera, Reduviidae, Triatominae) in the State of Acre and in the Brazilian Amazon

“…Their importance lies in the fact that they can transmit South American Trypanosomiasis, also called Chagas disease (1) (2) , named after Carlos Chagas, who first described it in 1909 (3) .…”

“…In the Amazon rainforest, there are 29 recognised species of triatomines, grouped into nine genera: Rhodnius [12], Psammolestes [1], Triatoma [4], Panstrongylus [3], Eratyrus [2], Cavernicola [2], Alberprosenia [2], Belminus [2] and Microtriatoma [1] (2) (4) (5) . In the Brazilian Amazon, at least 20 species of sylvatic triatomines belonging to eight genera have been identified, of which more than 10 are related to infection by the flagellate Trypanosoma cruzi (6) (7) .…”

“…In the Brazilian Amazon, at least 20 species of sylvatic triatomines belonging to eight genera have been identified, of which more than 10 are related to infection by the flagellate Trypanosoma cruzi (6) (7) . In the state of Acre, there have been reports of five triatomine species belonging to three genera, namely: Rhodnius montenegrensis (2) , Rhodnius robustus (8) , Rhodnius pictipes, Panstrongylus geniculatus (6) , and Eratyrus mucronatus (9) . The present study aims to report for the first time, the presence of the species Rhodnius stali in the State of Acre and in the Brazilian Amazon.…”

“…The presence of one more triatomine species in the State of Acre increases the total number of occurring species from five (2) to six. This was expected because the map of R. stali presented by Carcavallo et al (13) shows that this species was likely to occur in Acre and also in Rondônia.…”

Retrospective study of the epidemiological overview of the transmission of Chagas disease in the State of Acre, South-Western Amazonia, from 2009 to 2016

“…Several studies show that most outbreaks of acute Chagas disease are associated with açaí [36][37][38][39] , which is the main food responsible for the increase in the number of cases of Chagas disease in the North region in recent years, whether due to fruit or pulp contamination by means of waste from the infected triatomines in the endemic areas 40 , which have already been registered in the state with the occurrence of the following species: Rhodnius robustus 29 , Rhodnius pictipes 29 , Rhodnius montenegrensis 41 , Rhodnius stali 16 , Rhodnius neglectus 42 , Eratyrus mucronatus 13 , Panstrongylus geniculatus 12 , Panstrongylus megistus 43 and Triatoma sordida 44 .…”