First record of Trypanosoma evansi DNA in Dichelacera alcicornis and Dichelacera januarii (Diptera: Tabanidae) flies in South America.

Background: Trypanosoma evansi infects a large number of wild and domestic animals and causes a spoliative disease known as surra. It is mechanically transmitted, mainly by biting flies of the genera Tabanus and Stomoxys. The detection of T.

Immunomodulatory effects of Yarrowia lipolytica as a food additive in the diet of Nile tilapia.

The use of yeasts as a dietary additive for fish can act as a source of nutrients and as an immunostimulant. This work aimed to evaluate the effects of the fermented biomass of the yeast Yarrowia lipolytica as a food additive on zootechnical and hematological parameters, and on immune response in the plasma and kidney of Nile Tilapia (Oreochromis niloticus). After supplementation with 3, 5, and 7% of the yeast biomass for 35 days, the blood and tissues of the animals of each experimental group were collected for analysis.

SECTAB: a new device for tabanid storage in field collections.

The article describes the construction of a simple new device, for the storage of live tabanids during field collections and their transportation to the laboratory, avoiding the loss of specimens.

[Colonization by Panstrongylus megistus (Hemiptera, Reduviidae, Triatominae) inside homes in São José do Cerrito, SC: first report].

In response to complaints of the presence of triatomines in a fishing hut on the banks of the Caveiras river, in the municipality of São José do Cerrito, State of Santa Catarina, an investigation was conducted in this hut and in other ecotopes neighboring the initial finding. Fifteen specimens of Panstrongylus megistus were found and none of them were infected. The locality of this ecotope is visited occasionally by capybaras, opossums, armadillos and rats.