Microconilon acuticollis, Besuchet & Hlaváč, 2011

Besuchet, Claude & Hlaváč, Peter, 2011, Contribution to the knowledge of Clavigeritae (Coleoptera: Staphylinidae: Pselaphinae) from Fiji and Vanuatu, with the catalogue of Clavigeritae of Oceania, Acta Entomologica Musei Nationalis Pragae 51 (2), pp. 517-528 : 523

publication ID	https://doi.org/ 10.5281/zenodo.5328923
DOI	https://doi.org/10.5281/zenodo.5396156
persistent identifier	https://treatment.plazi.org/id/0397878D-AB6A-9603-FE73-E10C4B6CFB01
treatment provided by	Felipe
scientific name	Microconilon acuticollis
status	sp. nov.

Treatment

Microconilon acuticollis View in CoL sp. nov.

( Figs. 2 View Figs , 6 View Figs )

Type material (4 JJ 2 ♀♀). HOLOTYPE: J, FIJI: TAVEUNI: L. Tagimaucia track, 15 Jul 1987, 700 m, G. Monteith & D. Cook. With Ants In Squamellaria sp. Ant Plant ( MHNG). PARATYPES: 3 JJ 2 ♀♀, the same data as holotype ( QMBA, MHNG, PHKS).

Description. Body ( Fig. 2 View Figs ) 2.30–2.45 mm long. Head rectangular, about 1.5 times as long as wide. Temples with well-defined carinae going from eyes to occipital margin of head.Antennae with terminal antennomere very long, 1.08–1.16 mm, with longer pubescence, flat through whole length but especially at apex, apex with 3–5 very long macrosetae. Pronotum about 1.65 times shorter than head and 1.6 times as wide as long. Elytra at suture less than half the maximum width of elytra, anterior border of shoulders with profound concavity. Abdomen with the composite tergite (IV–VI) 3.5 times as long as tergites VII–VIII combined. Mesotibiae with minuscule, but sharp and well-defined preapical spine. Aedeagus as in Fig. 6 View Figs , 0.48 mm long.

Sexual dimorphism. Mesotibiae of female lacking preapical spines, apex rounded.

Differential diagnosis. Similar to M. kuscheli sp. nov., but smaller, with head less evenly flattened ventrally, pronotum more transverse, antennomere III much longer and pronotum larger.

Biology. Unknown ant whose nest was in an ant plant of the genus Squamellaria .

Etymology. The species name refers to the anteriorly narrowed neck of the species.

Distribution. Fiji, Taveuni Island.