Gordionus ondulatus Miralles, 1984

(Figure 12)

1984. Gordionus ondulatus Miralles 283-284.

Holotype: 1 male, Sauce Chico stream, Tornquist, Buenos Aires, Argentina.

Host: Unknown.

Description. The specimen is 87 mm long and about 1 mm in diameter. Body color is yellow brown. Anterior tip is white, followed by a dark collar. Posterior end is rounded. The cuticle shows areoles of one type arranged in rows (Fig. 12). Areoles are either quadrangular or rectangular in shape. From the lateral areolar rims, finger-like structures elongate. Interareolar spaces are wide, and with scarce round bristles.

Distribution: Argentina: Buenos Aires province, Tornquist, Sauce Chico stream (2 males and 3 females, Miralles 1984), Sierra de la Ventana, El Loro stream (7 females, De Villalobos & Voglino 2000). Ecuador: Chimborazo province, Shulala (2º 1´58´´ S – 78º 44´51´´ W) (1 female I. Tapia and G. Onore col. 31/12/2001 [QCAZI 10010] new record).

Comments. At present Gordionus ondulatus has only been described from Argentina (see Miralles 1984; De Villalobos & Voglino 2000). This new finding largely extends northward its geographical distribution in South America.