Mimogonia baloghi, Irmler, 2013

Irmler, Ulrich, 2013, New species of the genus Mimogonia and Holotrochus from South America (Coleoptera: Staphylindae: Osoriinae), Acta Entomologica Musei Nationalis Pragae 53 (1), pp. 155-176 : 156-157

Mimogonia baloghi sp. nov.

( Figs 2 , 16A )

Type locality. Paraguay, Puerto Presidente Stroessner .

Type material. HOLOTYPE:, ‘ Paraguay: Puerto Presidente Stroessner , Hungarian Soil-Zool. Exp., 05.01.1966, leg. J. Balogh and L.S. Mahunka’ ( HNHM) . PARATYPES: 4 ♀♀ from the same location ( HNHM, UIC) ; 1 ♀, ‘ Puerto Presidente Stroessner, Hungarian Soil-Zool.Exp., 30.12.1965, leg. L.S. Mahunka’ ( HNHM) .

Diagnosis. According to the head/pronotum width ratio of 0.65, this species resembles the Mimogonia antennata group having small eyes, and the species M. antennata Irmler, 1981 , M. subopaca Irmler, 1981 , M brunnea Irmler, 1981 , M. similis Irmler, 1981 , M. tricolor Irmler, 1981 , M. pumilia Irmler, 1981 , M. hermani Irmler, 2007a and M. huggerti Irmler, 2007a . Mimogonia baloghi sp. nov. can be identified only by its unique aedeagus. In particular, the compact coiling of the endophallus are characteristic for this new species.

Description. Length: 2.3 mm. Colouration black; anterior half of head, pronotum and elytra light brown to yellow, with posterior margin of elytra darkish; legs and antennae yellow.

Head 0.29 mm long, 0.42 mm wide; eyes only slightly prominent; setiferous punctation deep and coriaceous close to neck; punctation apically sparser with impunctate area on disc; setae yellow; net-like microsculpture weak; surface slightly shiny.

Antennae as long as head and two thirds of pronotum combined; second antennomere oval and as long as conical third antennomere; fourth antennomere small, not wider than third; the following antennomeres increasing in width; tenth antennomere nearly twice as wide as long.

Pronotum 0.38 mm long, 0.64 mm wide; sides in apical two thirds more or less parallel, in posterior third deeply emarginate; setiferous punctation as deep and dense as on head; distance between punctures as wide as or slightly closer as diameter of punctures; setae yellow, pointing to the centre of posterior edge; net-like microsculpture weak; surface slightly shiny.

Elytra 0.49 mm long, 0.50 mm wide; setiferous punctation as deep and dense as on pronotum; interstices between punctures on average as wide as diameter of punctures; pubescence yellow, pointing to the centre of posterior edge; along suture pointing more or less parallel to suture; net-like microsculpture much deeper than on head and pronotum; thus, surface matte.

Abdomen with deep net-like microsculpture; surface matte; setiferous punctation weaker than on fore-body, but as dense; pubescence yellow, pointing posteriad.

Mesotibia of male without emargination on inner side, but with row of spines at outer apical edge.

Aedaegus with hook-like apex; endophallus with spiral structure at base and more laminar structure at apex.

Etymology. This species is named after its collector Janos Balogh.

Distribution. Known only from the type locality.

Figures

Figs 1–3. 1 – Mimogonia marquezi sp. nov.; 2 – M. baloghi sp. nov.; 3 – M. duckei sp. nov. Body parts:A – aedeagus in lateral aspect; B – male mesotibia; C – antenna; D – last sternite. Scale bars:A, B, D – 0.1 mm, C – 0.5 mm.

Fig. 16. Head, pronotum, and elytra of Mimogonia Coiffait, 1978 showing shape, punctation and microsculpture. A – M. baloghi sp. nov.; B – M. marquesi sp. nov.; C – M. duckei sp. nov. Scale bars: 0.2 mm.