Polygenis (Polygenis) platensis (Jordan & Rothschild)

Berrizbeitia, M. Fernanda Lopez, Sanchez, R. Tatiana, Barquez, Ruben M. & Diaz, M. Monica, 2017, An update on the distribution and nomenclature of fleas (Order Siphonaptera) of bats (Order Chiroptera) and rodents (Order Rodentia) from La Rioja Province, Argentina, ZooKeys 678, pp. 139-154 : 140

Polygenis (Polygenis) platensis (Jordan & Rothschild)

Distribution in Argentina.

Buenos Aires, Córdoba, Chubut, Entre Ríos, Jujuy, La Pampa, La Rioja, Mendoza, Río Negro, Salta, San Luis, San Juan, Santa Cruz, and Santiago del Estero ( Lareschi et al. 2016).

Material examined.

Castro Barros Department : (4) Reserva Aguada de las Alturas, 4 km W of Anillaco (28°47.942'S, 66°59.749'W), 1188 m, A. glaucinus , 19.IV.2012, RTS (19), 1 ♂ CMLA (605) ( López Berrizbeitia et al. 2013). San Martín Department: (15) Ulapes, 1 W of plaza principal de Ulapes (31°34'35"S, 66°14'55"W), 493 m, G. chacoensis , 4.X.2014, RTS (84), 2 ♀ CMLA (622, 623); RTS (85), 1 ♀ CMLA (624); RTS (93), 2 ♂ CMLA (625,626), 2 ♀ CMLA (627, 628) .

Additional records.

"Guayapa 30.59"S, 65.59 W", Order Rodentia (unknown species) ( Smit 1987).

Remarks.

Males of P. platensis are distinguished by the narrow distal arm of sternum IX with scattered lateral setae and by the posterior margin of sternum VIII which presents a right angle. Females have the ventral margin of bulga of spermatheca markedly indented ( Smit 1987); however, Lareschi and Linardi (2009) observed a variation on this character and they reported that spermatheca can be indented or not. With respect to the record from “Guayapa”, we found that the coordinates given by Smit (1987) place the collecting locality at "app. 3 km N of El Milagro, General Ocampo Department". The locality “Guayapa” in La Rioja Province is located at 29°51'41.18"S, 67°14'22.99"W, which is about 180 km SE of the previous coordinates. López Berrizbeitia et al. (2013) cited the host as Akodon simulator , but we now use the name A. glaucinus following Coyner et al. (2013). The collection from Ulapes from G. chacoensis constitutes a new flea-host association, this result was expected, because P. (P.) platensis has been recorded on Graomys griseoflavus ( Lareschi et al. 2016). The localities recorded are from the Dry Chaco and Monte Desert of Mountains and Isolated Valleys eco-regions.