3.1.2. Eutrecha Maury, 1982

Figs 1, 2, 4, 5, 6, 7, 8, 9, 10

Eutrecha Maury, 1982: 125, 138; Harvey 2003: 210; Hernández and Colmenares 2008: 447; Acosta-Berrocal et al. 2017: 64; Villareal-Blanco et al. 2017: 139, 142, fig. 15; Iuri et al. 2021: 153.

Revised diagnosis.

A member of Ammotrechinae s.str. as herein defined. Eutrecha is presumed to be a monophyletic group of solifuges, whose males exhibit the following combination of features that allows to readily distinguish the genus from all other genera in Ammotrechinae s.l. i) Cheliceral fixed finger with FSM, FM, and FD teeth moderately reduced (i.e., evidently visible but smaller than MSM tooth of movable finger, in E. belenensis) (Figs 2C, 5B, 6) to much reduced or undistinguishable ( E. florezi and E. longirostris) (Figs 2A, B, 8B). ii) Cheliceral fixed finger with medial notch (MN) between FM and FSM teeth, when these teeth are present (even if greatly reduced) (Figs 2B, C, 5B, 6, 8B). iii) Fixed finger median apical diastema (FMAD) present between FM and FD teeth, when these are present (Figs 2B, C, 5B, 8B). iv) Flagellum without prolateral plumose setiform organ (Figs 5D, 8D). v) Ctenidia, in the form of short “fleshy” setae, present only on 1st post-genital sternite (spiracular sternite I) (Figs 4D, 7B).

Affinities.

In having the same or similar pattern of spiniform setae on the basitarsi and telotarsi of the walking legs and the same segmentation pattern of the leg telotarsi, Eutrecha most closely resembles Xenotrecha than it does resemble Ammotrecha .

Species composition.

Eutrecha belenensis sp. nov.; Eutrecha florezi Villareal-Blanco, Armas and Martínez 2017; Eutrecha longirostris Maury, 1982.