3.1.6. Xenotrecha Maury, 1982

Figs 1, 3, 11, 12, 13, 14, 15, 16, 17, 18, 19

Xenotrecha Maury, 1982: 125, 134; Rocha and Cancello 2002b: 1, 2; Harvey 2003: 210; Hernández and Colmenares 2008: 447; Acosta-Berrocal et al. 2017: 64: Iuri et al. 2021: 153.

Revised diagnosis.

A member of Ammotrechinae s.str. as herein defined. Xenotrecha remains a monotypic genus containing only X. huebneri, whose male exhibits 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 FM and FD teeth well developed, of normal size for primary teeth (Fig. 3B). ii) Cheliceral fixed finger with the median teeth series uninterrupted, without medial notch or median apical diastema (Figs 3B, 14E, 15A). iii) Flagellum with prolateral plumose setiform organ (Figs 14F, 16A, B). iv) Ctenidia, in the form of short and thick lanceolate setae, present only on 1st and 2nd post-genital sternites (spiracular sternites) (Fig. 13C).

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, Xenotrecha most closely resembles Eutrecha than it does resemble Ammotrecha .

Species composition.

Xenotrecha huebneri (Kraepelin, 1899).