Achilia baburra, Sabella & Cuccodoro & Kurbatov, 2019

Sabella, Giorgio, Cuccodoro, Giulio & Kurbatov, Sergey A., 2019, A revision of the Chilean Brachyglutini - Part 4. Revision of Achilia Reitter, 1890: A. puncticeps and A. approximans species groups, with description of seven new species (Coleoptera: Staphylinidae: Pselaphinae), Revue suisse de Zoologie 126 (1), pp. 127-145 : 137-139

publication ID	https://doi.org/ 10.5281/zenodo.2619528
DOI	https://doi.org/10.5281/zenodo.3706245
persistent identifier	https://treatment.plazi.org/id/03E587B3-0D30-3303-E9E0-E7EE6D72FBAF
treatment provided by	Carolina
scientific name	Achilia baburra
status	sp. nov.

Treatment

Achilia baburra View in CoL n. sp.

Figs 4 View Figs 1-6 , 12 View Figs 11-14 , 19, 22 View Figs 19-28 , 33-34 View Figs 29-34 , 58 View Fig

Holotype: MHNG (# MHNG-ENTO-13840); 1 ♂; SOUTHERN CHILI: Región Los Lagos: Osorno prov.: Puyehue National Park, Antillanca road; 500-1000 m; 18-20.XII.1984; S. & J. Peck; car netting.

Paratypes (99): SOUTHERN AND CENTRAL CHILI: Región Aysén: Aysén prov.: MHNG; 1 ♂; Rio Simpson National Park, 33 km E Puerto Aysén; 70 m; 31.XII.1984 / 26.I.1985; S. & J. Peck; FIT, select cut forest . – FMNH; 1 ♂; Rio Cisnes, 01-08.II.1958; L. Peña – Región Los Lagos: Llanquihue prov.: FMNH; 1 ♂; Salto Petrohué, 6.4 km SW Petrohué; 140 m; 28.XII.1982; A. Newton & M. Thayer; Valdivian rainforest, Berlese, leaf & log litter, forest floor . – MHNG; 1 ♂; Vicente Perez National Park, Salto Petrohué; 150 m; 23.XII.1984 / 06.II.1985; S. & J. Peck; FIT, mixed moist forest . – Osorno prov.: MHNG; 2 ♂ and 1 ♀; Puyehue National Park, Aguas Calientes; 500 m; 20.XII.1984 / 08.II.1985; S. & J. Peck; FIT, derrumbes forest trail. – MHNG; 2 ♀; Puyehue National Park, road Aguas Calientes-Antillanca, station 19b; 40° 45’S 72° 15-20’W; 750-850 m; 30.XI/ 01.XII.1992; D. Burckhardt; sifting of moss on tree trunks and forest floor and vegetational debris GoogleMaps . – MHNG; 1 ♀; Puyehue National Park, Aguas Calientes, station 25a; 400-500 m; 31.XII.1990 / 01.I.1991; D. Agosti & D. Burckhardt . – FMNH (FMHD #85-923, #85-38); 2 ♂; Puyehue National Park, Antillanca road; 500-1000 m; 18-20. XII.1984; S. & J. Peck; car netting . – MHNG; 44 ♂ and 27 ♀; same data . – MHNS; 1 ♂ and 1 ♀; same data . – MHNG; 4 ♂; Puyehue National Park, Antillanca road; 600-1000 m; 18-20.XII.1984; S. & J. Peck; car netting . – FMNH; 1 ♂; 7.7 km NE Termas de Puyehue; site 664; 200 m; 19-25.XII.1982; A. Newton & M. Thayer; Valdivian rainforest, Berlese, leaf & log litter, forest floor . – FMNH; 2 ♂; Puyehue National Park, Antillanca road, site 659; 720 m; 18-24.XII.1982; A. Newton & M. Thayer; Nothofagus ssp. forest , flight intercept (windows) trap . – UHNC; 3 ♂; same data . – FMNH; 1 ♂; Puyehue National Park, Antillanca road; 720- 1000 m; 18-24.XII.1982; A. Newton & M. Thayer; Nothofagus ssp. forest , screen sweeping at dusk . – UHNC; 1 ♂; same data . – Región Los Ríos: Valdivia prov.: FMNH; 1 ♂; 4.1 km W Anticura, site 663; 270 m; 19-25.XII.1982; A. Newton & M. Thayer; Valdivian rainforest, flight intercept (windows) trap . – FMNH (#97-5); 2 ♂; 4 km W Anticura; 460 m; 40° 39.73’ S 72° 08.10’ W; 01-30.I.1997; A. Newton & M. Thayer 985-3; Valdivian rainforest w/large, Saxegothea , flight intercept trap GoogleMaps . – Región Araucanía: Cautín prov.: FMNH; 1 ♂; Volcán Villarica, site 653; 1250 m; 15-29.XII.1982; A. Newton & M. Thayer; Nothofagus dombey pumilio w/ Chusquea, Berlese , leaf & log litter, forest floor.

Description: Body 1.35-1.40 mm long, entirely dark brown with reddish elytra darker at base and along sutural stria; antennae, palpi and legs reddish-brown. Head with moderately protruding eyes shorter than slightly convex temples. Pronotum about as wide as head; median antebasal fovea smaller than lateral ones. First abdominal tergite with basal striae extending to about one-third of paratergal length, and separated at base by one-third of tergal width.

Male: Head as in Figs 33-34 View Figs 29-34 ; frons densely punctate and pubescent, flattened from occipital region to frontal lobe, with distinctly raised margins; vertexal sulcus indistinct. Antennae ( Fig. 12 View Figs 11-14 ) with scape longer than wide and pedicel only slightly longer than wide; antennomeres III-IV distinctly transverse; antennomere V strongly transverse with protruding mesal margin; antennomeres VI-VIII transverse with protruding mesal margins; antennomeres IX and X transverse; antennomere XI very elongate and distinctly longer than VI-X combined. Metaventrite slightly raised at middle, with faint median sulcus. Legs with trochanters very elongate; ventral margin of protrochanters with a tuft of setae at middle ( Fig. 19 View Figs 19-28 ); mesotrochanters bearing numerous long bristles, with ventral margin projecting posteriorly as spine ( Fig. 22 View Figs 19-28 ); profemora and mesofemora slightly thickened; distal half of metatibiae slightly sinuate. Abdominal tergites and ventrites unmodified. Aedeagus ( Fig. 4 View Figs 1-6 ) 0.26-0.28 mm long; medial sclerite enlarged in apical half, and associated on each side with two pointed sclerites, first with four spines.

Female: Similar to male except: head with frons slightly convex (not flattened) without punctures and with large vertexal fovea beside each eye; vertexal sulcus present and well-impressed, antennae shorter and thinner than male, antennomere V unmodified; metaventrite and legs unmodified.

Collecting data: Collected in December and January, mainly in Valdivian rainforest, at elevations ranging from 70 m to 1000 m. Most specimens came from car netting and flight intercept traps, but also by sifted samples of leaf and log litter.

Distribution: Achilia baburra n. sp. is known from Southern and Central Chile ( Fig. 58 View Fig : green diamonds), ranging from Aysén to Cautín provinces.

Comments: Achilia baburra n. sp. is similar to A. puncticeps from which it is easily distinguished by the male features of the head (compare Figs 33-34 and 29-30 View Figs 29-34 ), the antennae (compare Figs 12 and 13 View Figs 11-14 ), and the copulatory pieces of the aedeagus (compare Figs 1 and 4 View Figs 1-6 ). The females of the two species are distinguished because baburra n. sp. has the frontal lobe longer and the temple more rounded than A. puncticeps .