Achilia trulla, 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 : 141-143

publication ID

https://doi.org/ 10.5281/zenodo.2619528

DOI

https://doi.org/10.5281/zenodo.3706251

persistent identifier

https://treatment.plazi.org/id/03E587B3-0D34-331F-EE16-E5D06AA3F9B5

treatment provided by

Carolina

scientific name

Achilia trulla
status

n. sp.

Achilia trulla n. sp.

Figs 6 View Figs 1-6 , 17 View Figs 15-18 , 24 View Figs 19-28 , 47-50 View Figs 47-50 , 58 View Fig

Holotype: FMNH; 1 ♂; SOUTHERN CHILI: Región Los Lagos: Osorno prov.: Puyehue National Park , Antillanca road, site 659; 720 m; 18-24.XII.1982; A. Newton & M. Thayer; Nothofagus ssp. forest , flight intercept trap.

Description: Body 1.45 mm long, reddish-brown, with darker abdomen, and reddish elytra; antennae, palpi and legs yellowish. Head with weakly protruding eyes, shorter than convex temples. Pronotum 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 about one-third of tergal width.

Male: Head as in Figs 47-48 View Figs 47-50 ; frons with finely punctate and pubescent median depression with margins markedly raised and punctate, slightly expanded above eyes, the latter areas flattened and more densely punctate; anterior sides of head convergent. Antennae ( Figs 17 View Figs 15-18 , 49-50 View Figs 47-50 ) with scape and pedicel distinctly longer than wide; antennomere III as wide as long, antennomeres IV-V transverse; antennomere VI more than two times longer than wide with concave mesal margin; antennomere VII distinctly transverse; antennomere VIII transverse, its mesal margin projecting in large lamina; antennomere IX with mesal margin projecting in a long bilobed lamina bearing long and large apical setae; antennomere X strongly transverse, apical third of mesal margin projecting and bearing three long and thin setae; antennomere XI elongate and longer than VII-X combined, its surface with many tubercles. Metaventrite at middle slightly raised with faint median sulcus. Legs with trochanters very elongate; protrochanters bearing tuft of setae; ventral margin of mesotrochanters projecting posteriorly as short spine ( Fig. 24 View Figs 19-28 ); profemora and mesofemora slightly thickened; distal half of metatibiae slightly sinuate. Abdominal tergites and ventrites unmodified. Aedeagus ( Fig. 6 View Figs 1-6 , dorsal longitudinal struts not shown) 0.30 mm long; medial sclerites apically pointed, and associated on each side with one pointed sclerite.

Female: Unknown.

Collecting data: Only one specimen collected in December in Nothofagus ssp. forest by flight intercept traps.

Distribution: Achilia trulla n. sp. is known only for the type locality in Region of Los Lagos (Osorno province) ( Fig. 58 View Fig : yellow stars).

Comments: Achilia trulla n. sp. is easily distinguished from the other members of the genus by the morphology of the male head ( Figs 47-48 View Figs 47-50 ), features of the antennae ( Figs 17 View Figs 15-18 , 49-50 View Figs 47-50 ), and shape of the aedeagus ( Fig. 6 View Figs 1-6 ).

FMNH

USA, Illinois, Chicago, Field Museum of Natural History (also used by Finnish Museum of Natural History)

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Achilia