Litoblatta lutea sp. nov.

(Figs. 1–8, 68)

Holotype. Argentina, Province of Chaco: ♁, Castelli J.J. (lat 25.9463S, long 60.6204W), 30/XII/2002, Minoli S. coll. (MACN) MACN-En 34648 (= L. brasiliensis in Crespo & Valverde 2008; Crespo et al. 2010).

Paratypes. Argentina. Province of Catamarca: ♁, La Banderita, XI/1951, Kormiley N. coll. (MACN) (= L. brasiliensis in Crespo et al. 2010). Province of Córdoba: ♁, locality missing , 20/XI/1948, López P. coll. (IFML). Province of Corrientes: ♁, Paso Amores, date and coll. missing (MLP). Province of Jujuy: ♁, locality missing , 29/ I/1958, Torres & Ferreira colls. (MLP); ♁, Calilegua (lat 23.7735S, long 64.7710W) , I/1949, Willink A. & Monrós colls. (IFML) TBLA001 . ♁, Calilegua, XII/1948, Poore B. coll. (IFML); ♁, PN Calilegua, Camping Aguas Negras, 20/ II /2013, Rubio G.D., Iuri H., Ojanguren A., Porta A. & Adilardi R. colls. (FCEN). Province of Salta: ♁, Campo Durán, 16-21/ III /1984, WiIllink A., Claps & Navarro colls. (IFML); ♁, Río Piedras, 15/ III /1938, Birabén M. coll. (MLP). Province of Santiago del Estero: ♁, Matará, 12/XII/1939, Birabén M. coll. (MLP); ♁, Río Salado, Wagner coll. (MLP). Province of Tucumán: ♁, Rumi Punco, 20/ III /1939, Birabén M. & Scott colls. (MLP), ♁, Tucumán (km 1333 between Tapia and Vipos, 700 m. a.s.l.), 4/ III /1965, Weyrauch W. coll. (IFML).

Diagnosis. Supra anal apical margin sinuous (Fig. 1). Right paraproct presents a group of converging spines, a feature that allows specific identification (Figs.1–3). R1P ends distally as a quadrangular area bigger than the inner convex scale zone included (Figs. 7–8, 68).

Male. Measurements in mm: N= 15. PL: 3.2‾4.42 (4.30); TeL: 11.98‾18.26 (13.10); TL: 15.42‾21.45 (16.00); IO: 0.50‾0.90 (0.60); IOc: 0.40‾0.70 (0.60); IA: 0.50‾1.10 (0.90). Supra anal plate wider than longer. Apical margin sinuous (Fig. 1). Cerci long and hairy (Fig. 2). Left paraproct hook shaped, right paraproct with a group of spines convergent on the internal inferior apex (Fig. 3). Asymmetrical subgenital plate with styli. Left stylus cylindrical and pilous. Right stylus shorter and stouter, conical with its surface covered by small spines (Fig. 4). The margin between the styli is almost straight. Genital sclerites: L3 hook shape with apical incision, L4U present; L2 strait broader basally with a curved via distally, whose width decreases apically. R with the following recognizable sclerites: R3; the cleft, R1S + R2; R4 and R1P (Figs. 5–7). R4 has a tobacco pipe shape and articulates with R2. R1P articulates cranially with R1S and ends distally as a quadrangular area which contains a convex scale zone sz (Fig. 8).

Female. Unknown.

Etymology. From Latin adjective (masculine), luteus -a (feminine), -um (neuter), yellowish.

Distribution. Argentina-Provinces of Catamarca, Chaco, Córdoba, Corrientes, Jujuy, Salta, Santiago del Estero and Tucumán.