Trechus relictus Magrini, Quéinnec & Vigna Taglianti, 2012

Schmidt, Joachim & Faille, Arnaud, 2018, Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini), European Journal of Taxonomy 446, pp. 1-82 : 17

Trechus relictus Magrini, Quéinnec & Vigna Taglianti, 2012

Fig. 47

Trechus (Archeotrechus) relictus Magrini, Quéinnec & Vigna Taglianti, 2012: 20 ; locus typicus: Oromia Province, Bale massif, Goba, Mt Sgona (Mt Batu), alt. about 3800 m.

Diagnosis

This species is easily recognizable based on the combination of the following characters: body length below 3 mm (maximum body length 3.02 mm: Magrini et al. 2012), only one protarsomere of male dilated, elytra with striae indistinctly impressed on disc, not iridescent, aedeagal median lobe elongated with ventral margin sinusoidal and with apical capitulum markedly button-like delimited.

Type material

Not studied. Identification is based on the very detailed description and figuring of habitus and genital characters as well as on additional material collected close to the type locality.

Material examined

ETHIOPIA: 54 specimens (³³, ♀♀), Oromia, Bale Mts, brook valley above Goba, alt. 3750–3800 m, 06°54′42″ N, 39°54′38″ E, 19 Feb. 2007 ( CAF, CSCHM); 7 ³³, 4 ♀♀, Bale Mts, Kaficha Vall., alt. 3960 m, 06°59′12″ N, 39°51′53″ E, 27 Feb. 2015 ( CSCHM); 1 ³, Bale Mts, Tegona Valley above Goba, alt. 3550 m, 06°54′42″ N, 39°53′35″ E, 20 Feb. 2007 ( CAF).

Distribution

Locally endemic of the northeastern slope of the Bale Mts above Goba and the adjacent parts of the Sanetti Plateau (see Magrini et al. 2012). The vertical distribution of the species ranges from approximately 3700 m to 4100 m.

Figures

Figs 37–56. Trechus spp., aedeagal median lobe, left lateral view (37, 39, 40, 42, 44–45, 47–48, 50, 52–53, 55–56) and dorsal view (38, 41, 43, 46, 49, 51, 54). 37–38. T. mattisi sp. nov., paratype. 39. T. transversicollis sp. nov., holotype. 40–41. T. minitrechus sp. nov., paratype. 42–43. T. nanulus sp. nov., paratype. 44. T. rira sp. nov., holotype. 45–46. T. iridescens sp. nov., holotype. 47. T. relictus Magrini, Quéinnec & Vigna Taglianti, 2012, specimen from brook valley above Goba. 48–49. T. oppositus sp. nov., paratype. 50–51. T. harryi sp. nov., paratype. 52. T. dodola sp. nov., holotype. 53–54. T. adaba sp. nov., paratype. 55. T. harenna sp. nov., paratype. 56. T. bombi sp. nov., holotype.