Oedichirus segmentatus Rougemont 2018, nov.sp.
Creators: name: Rougemont, Guillaume de
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Oedichirus
Oedichirus segmentatus

description: Oedichirus segmentatus nov.sp.
(Figs 51)
Material studied: ♂ Holotype: S-INDIEN 16.XI.1993. Tamil Nadu, Nilgiri hills, 15 km SE Kotagiri (3) Kunchappanai 900 m / 76º56’E 11º22’N, Boukal & Kejval / HOLOTYPE Oedichirus segmentatus Des. 2015 G. de Rougemont [NHMW]; 3♀♀ paratypes: [Ibid.] [NHMW, one paratype in CRO]; 1♀ paratype: INDIA, No. 37, Madras, Nilgiri 16 km E. de Coonoor, 900 m, 19-XI.72, Besuchet Löbl Mussard / PARATYPE Oedichirus segmentatus des. 2015 G. de Rougemont [MHNG]; 1♀ paratype: INDIA, No. 26. Madras, Nilgiri, 1400 m, 22-XI.72, Besuchet Löbl Mussard / PARATYPE Oedichirus segmentatus des. 2015 G. de Rougemont [MHNG]; 1♀ paratype: INDIA, Madras, Nilgiri, No. 38. 7 km E. de Coonoor, 1350 m, 19-XI.72, Besuchet Löbl Mussard / PARATYPE Oedichirus segmentatus des. 2015 G. de Rougemont [CRO].
Additional material: 1♀: INDE: Tamil Nadu, Coonoor 600 m, 16.I. 1972, R. Mussard / Odichirus segmentatus Rgmt.? det. 2015 G. de Rougemont / Body and appendages stained black by chemical? [MHNG].
Description: length: 4.2 mm; length of fore-body: 2.2; length of head: 0.51; breadth of head: 0.7; length of antenna: 1.6; length of pronotum: 0.8; breadth of pronotum: 0.8; length of elytron: 0.62; breadth of elytra: 0.8. Fore-body reddish-brown, head sometimes darker, abdomen black, the posterior margins of segments III-VI reddishbrown; palpi and antennae testaceous; femora testaceous, their apices broadly infuscate, tibiae dark brown, their bases and apices narrowly testaceous, tarsi testaceous. Dorsal surfaces devoid of microsculpture. Pubescence long, pale, erect. Habitus: Fig. 51h.
Head rather narrow, the surface coarsely and densely punctured; post-ocular border entire, very marked, in the shape of a salient carina; posterior angles marked, but not forming a tooth. Pronotum fairly densely punctate, with a distinct pair of discal series of 5-6 large punctures not enclosing other punctures; punctures on sides of disc numerous, but interstices everywhere wider than diameter of punctures; sides with no evident lateral border. Micropterous, elytra very short, broadest a little behind middle, humeral angles obsolete, the puncturation dense, homogenous, interstices mostly narrower than diameter of punctures. Punctures of abdominal segments arranged in four discrete transverse rows (including the one on anterior margins of tergites which in most species takes the form of short longitudinal keels and furrows, but in this new species consists only of slightly elongate punctures)
Male: abdominal sternite VII unmodified; sternite VIII: Fig. 51s8; aedoeagus: Fig. 51all.
Female: sternite IX: Fig. 51vp.
The combination of small size, colour pattern and abdominal puncturation makes this species readily recognisable.
Key 4.
description: Published as part of Rougemont, Guillaume de, 2018, New oriental Oedichirus (Staphylinidae, Paederinae, Pinophilini), pp. 461-536 in Linzer biologische Beiträge 50 (1) on page 500, DOI: 10.5281/zenodo.4004245