New record of Drosophila nebulosa Stutervant, 1916 (Diptera, Drosophilidae) in western Argentina extends its southern distribution

MONGIARDINO KOCH N; PADRO JULIAN; GARAY D; SOTO IM

DROSOPHILA INFORMATION SERVICE

University of Oklahoma

Lugar: Oklahoma; Año: 2012

0070-7333

In the present work we are reporting for the first time the presence of D. nebulosa in San Juan province enlarging in a south-western direction its Andean distributional range. Our sampling site, San Agustín del Valle Fértil (30° 38′ 1″ S, 67° 27′ 59″ W) is located at 250 km north-east of the capital city of the province, San Juan. This zone belongs to the Phytogeographic Province known as Monte (Cabrera, 1971) with a vegetation typical of a shrub steppe adapted to a warm and arid weather, with periodic droughts of 6 to 9 months a year and mean annual precipitations of 200-250 mm (Mirré, 1976). The vegetation is of a xeric environment, with scarce arboreal vegetation, mainly repesented by ?algarrobos? (genus Prosopis); and cacti of Echinopsis (cardon) and Opuntia (pricly pear) genera.