Type material housed in the Carcinological Collection of the Museo de La Plata, Argentina Diaz, Analía R. Álvarez, Victor Hugo Merlo Damborenea, Cristina Zootaxa 2017 2017-08-08 4303 1 88 102 5X3B6 Cohen, 1981 Cohen 1981 [151,616,546,572] Branchiopoda Branchinectidae Branchinecta Animalia Anostraca 3 91 Arthropoda species valchetana     Typelocality. Argentina,  Río NegroProvince, Provincial Route251, between General Conesa and San Antonio Oeste( 40°27’S- 64°37’W).    Paratypes. 2♂ and  2♀, MLP-Cr 157, from the same locality as type, 1974-07. Collector: Bachmann, A.   Current status.Valid species.  Additional types.Holotype. ♂ MACN-In30273. Allotype. ♀ MACN-In30275. Paratypes. 2 ♂ MACN-In30274 and 2 ♀ MACN-In30276.  Reference. Cohen (1981). 1656072604 Argentina -40.45 Provincial Route 1162 -64.61667 3 91 1 Rio Negro Province holotype 1656072624 [199,1383,689,714] Bachmann, A. Argentina -40.45 Provincial Route 1162 -64.61667 3 91 4 2 2 Rio Negro Province paratype