Presence of Ascogregarina culicis and Ascogregarina sp. in natural sympatric populations of Aedes aegypti and Ae. albopictus (Diptera: Culicidae) in Argentina

ALONSO ANA CAROLINA; STEIN MARINA; MARIA VICTORIA MICIELI

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Lugar: Rio de Janeiro; Año: 2021 vol. 93 p. 1 - 11

0001-3765

Abstract: Aedes aegypti is the main vector of the four arboviruses in America which havethe greatest impact on human health. The introduction of Aedes albopictus in SouthAmerica and Argentina acquires importance given the possibility that this species maybe a new vector of arboviruses in this region. For this reason, the studies of the biologyof their parasites, such as Ascogregarina spp., should be important for the knowledge ofthe invasive behavior of these vectors. We reported the finding of Ascogregarina culicisin Aedes aegypti and Ascogregarina sp. in Ae. albopictus populations in subtropicalArgentina. The prevalence of parasitism by A. culicis in Ae. aegypti and Ascogregrarina sp.in Ae. albopictus was 34.81% (n = 464) and 37.23% (n = 70), respectively, differing betweenthe seasons and habitats. The infection intensity caused by A. culicis and Ascogregarinasp. varied between 1 to 250 and 1 to 327 trophozoites respectively. Ascogregarina culiciswas found throughout the all sampling period of Ae. aegypti (June 2016-April 2018).However the presence of Ascogregarina sp. in the midgut of Ae. albopictus was notrecorded throughout the whole sampling period despite the presence of the host.