the phlebotomine sandflies of the province of chaco, argentina, are poorly known, with reports from more than 40 years or captures related with outbreaks of leishmaniasis. in here, mycropygomyia peresi (mangabeira) is reported for the first time in argentina, extending the known dstribution of migonemyia migonei (fran？a), evandromyia sallesi (galv？o & coutinho), mycropygomyia quinquefer (dyar), brumptomyia brumpti (larousse) y nemapalpus spp to the province of chaco. mg. migonei, together with nyssomyia neivai (pinto), evandromyia cortelezzii (brèthes), and psathyromyia shannoni (dyar) also captured in chaco, were incriminated as vectors of leishmania in argentina.
