Achilia adorabilis Sabella & Cuccodoro & Kurbatov 2019, n. sp.
Creators: name: Sabella, Giorgio
name: Cuccodoro, Giulio
name: Kurbatov, Sergey A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Achilia
Achilia adorabilis

description: Achilia adorabilis n. sp.
Figs 3, 16, 27, 41, 43, 45, 51-53, 57
Holotype: MHNG (# MHNG-ENTO-13841); 1 ♂; SOUTHERN CHILI: Región Los Lagos: Osorno prov.: Puyehue National Park, Aguas Calientes, station 25a; 400-500 m; 31.XII.1990 / 01.I.1991; D. Agosti & D. Burckhardt.
Paratypes (3): SOUTHERN CHILI: MHNG (# MHNG-ENTO-13842); 1 ♂; same data as holotype. – Región Aysén: Aysén prov.: MHNG (# MHNG-ENTO- 13843 & 13844); 1 ♂ and 1 ♀; 16 km NW Cisnes Medio, Río Grande; 200 m; 30.XII.1984 - 28.I.1985; S. & J. Peck; FIT mature beech forest.
Description: Body 1.45-1.60 mm long, reddish-brown, with darker abdomen, reddish elytra, antennae and legs; palpi yellowish. Head with protruding eyes almost as long as convex temples. Pronotum slightly wider than 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 about one-third of tergal width.
Male: Head as in Figs 41, 43 and 45, with posterior half distinctly elevated at center, dorsally flattened and densely punctate, semicircular depression with finely punctate bottom on each side just above eyes; anterior part of head also elevated towards center forming two protuberances divided by carina, and separated from posterior region by very deep and narrow transverse sulcus. Antennae (Figs 16, 51-53) with scape distinctly longer than wide and pedicel slightly longer than wide; antennomeres III-IV wider than long: antennomere V transverse with protruding mesal margin; antennomere VI slightly wider than long, antennomere VII about two times longer than wide with concave mesal margin bearing thin subbasal seta; antennomere VIII transverse; antennomere IX only slightly wider than long, its mesal margin projecting in a long bilobed lamina bearing large apical setae; antennomere X very big and slightly longer than wide, its mesal margin distinctly protruding in the apical half; antennomere XI elongate and longer than VIII-X combined. Metaventrite raised at middle, this area depressed, punctate and densely pubescent. Legs with trochanters very elongate; mesotrochanters (Fig. 27) unarmed; profemora and mesofemora slightly thickened; distal half of metatibiae slightly sinuate. Abdominal tergites and ventrites unmodified. Aedeagus (Fig. 3, dorsal longitudinal struts not shown) 0.35 mm long; medial sclerites apically rounded, and associated on each side with four pointed sclerites.
Female: Similar to male except: head unmodified with large vertexal fovea beside each eye; vertexal sulcus present; antennae, metaventrite, and legs unmodified.
Collecting data: Collected in December and January by flight intercept traps and by sifting in Valdivian rainforests.
Distribution: Achilia adorabilis n. sp. is known from Southern Chile (Fig. 57: yellow stars) only in Aysén and Los Lagos Regions.
Comments: Achilia adorabilis n. sp. is easily distinguished from the other members of the genus by the very peculiar morphology of the male head (Figs 41, 43, 45), features of the antennae (Figs 16, 51-53), and the copulatory pieces of the aedeagus (Fig. 3).
description: Published as part of 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), pp. 127-145 in Revue suisse de Zoologie 126 (1) on pages 139-141, DOI: 10.5281/zenodo.2619528