Hallazgo de Panstrongylus rufotuberculatus (Champion, 1899) (Hemiptera, Reduviidae, Triatominae) en ambiente domiciliario en la Región Piura, Perú Intra-domiciliary capture of Panstrongylus rufotuberculatus (Champion, 1899) (Hemiptera, Reduviidae, Triatominae) in Piura, Peru

Panstrongylus rufotuberculatus presenta una amplia distribución en América Central y del Sur con un comportamiento de especie silvestre. En el Perú ha sido registrado en Tumbes, Piura y Cuzco, siendo descrito en casas de localidades de este último departamento. En el presente trabajo se documenta evidencia de domiciliación de P. rufotuberculatus en la localidad de Chirinos-La Pareja, Distrito de Suyo, Provincia de Ayabaca, Región Piura, Perú (4º46'S, 79º93'W). Se capturaron 28 especímenes: 3 ninfas II, 4 ninfas III, 2 ninfas IV, 8 ninfas V, 3 machos y 8 hembras, lo que evidencia la existencia de una colonia intradomiciliar en "cuyeros" (criaderos de Cavia porcellus) camas y paredes del dormitorio de la vivienda. Exámenes parasitológicos de heces evacuadas espontáneamente fueron negativos a infección natural por Trypanosoma cruzi. A pesar de que se ha reportado la presencia de P. rufotuberculatus en localidades de Tumbes y Piura, es la primera vez que se documenta su tendencia sinantrópica en la Región. La importancia de esta especie y posteriores investigaciones permitirán evaluar su etología y potencial vectorial de trypanosomiasis americana. Se recomienda una cuidadosa actividad de vigilancia entomo-epidemiológica para esta especie y las otras que coexisten simpátricamente, actualmente en esta región del norte de Perú.<br>Panstrongylus rufotuberculatus is widely distributed in Central and South America. In Peru, it has been found in Tumbes, Piura, and Cuzco. The authors report the presence of P. rufotuberculatus in Chirinos-La Pareja, Suyo district, Ayabaca Province, Piura Region, Peru. Twenty-eight specimens were collected in two of 15 dwellings: three 2nd instar, four 3rd instar, two 4th instar, and eight 5th instar nymphs, three male and eight female, in an intra-domiciliary colony of guinea pigs (Cavia porcellus, raised indoors as a source of diet protein) and beds and bedroom walls. None of the fecal samples were naturally infected with Trypanosoma cruzi. This is the first report of synanthropic presence of P. rufotuberculatus in the region. The finding emphasizes the need for careful entomological and epidemiological surveillance of this and other triatomine species in the Region

The triatomines of northern Peru, with emphasis on the ecology and infection by trypanosomes of Rhodnius ecuadoriensis (Triatominae).

Information on the distribution and synanthropic behaviour of triatomines is essential for Chagas disease vector control. This work summarises such information from northern Peru, and presents new data on Rhodnius ecuadoriensis - an important local vector infesting 10-35% of dwellings in some zones. Three species are strongly synanthropic and may be suitable targets for chemical control of domestic/peridomestic bug populations. Panstrongylus herreri, the main domestic vector in the area, is probably present in sylvatic ecotopes in the Marañón river system. R. ecuadoriensis and Triatoma dimidiata seem exclusively domestic; biogeographical and ecological data suggest they might have spread in association with humans in northern Peru. Confirmation of this hypothesis would result in a local eradication strategy being recommended. Presence of trypanosome natural infection was assessed in 257 R. ecuadoriensis; Trypanosoma rangeli was detected in 4% of bugs. Six further triatomine species are potential disease vectors in the region (T. carrioni, P. chinai, P. rufotuberculatus, P. geniculatus, R. pictipes, and R. robustus), whilst Eratyrus mucronatus, E. cuspidatus, Cavernicola pilosa, Hermanlentia matsunoi, and Belminus peruvianus have little or no epidemiological significance. A strong community-based entomological surveillance system and collaboration with Ecuadorian public health authorities and researchers are recommended