Syleter fulvaster
Creators: name: Balkenohl, Michael
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Syleter
Syleter fulvaster

description: Syleter fulvaster (Andrewes, 1927)
Figs 9, 16, 23
Psilus fulvaster Andrewes, 1927: 267. – Andrewes, 1930: 288. Syleter fulvaster. – Lorenz, 1998: 138. – Lorenz, 2005: 148. – Balkenohl, 2001: 29, fig. 38.
Type material examined: Holotype: BMNH; ♀, with labels and data: white, printed, black framed “ Riam Kanan Martapoera Z.O. Borneo Doherty VI.VII”, “Bought from Janson, 1918.”, “ H.E.Andrewes Coll. B.M. 1945-97.”, red, black printed “Type”, white, handwritten and printed “ Psilus fulvaster Andr. Type H.E.Andrewes det.”. Two apical antennomeres are missing on the left side.
Paratype: BMNH; ♂, with same labels and data but with circle, red framed “Cotype”.
Additional material: MFNB; 1 ♂, S.O. Borneo Grabowsky. – BMNH; 1 ♂, BORNEO, Sabah near Gum Gum, Lower Kinabatangan, light trap, June 2005, BMNH (E) 2005-178 H. Takano & T. Owen-Edmunds. – NHMW; 1 ♀, Indonesia, SE-Sulawesi, Rawa Aopa Nat. Park Aopa vill., 8.- 10.2.1994, leg. M. Strba & I. Jenis. – BMNH; 1 ♀, Tjilatjap Java Drescher 19.IV.1936, And FCD 236, H.E. Andrewes Coll. B.M. 1945-97.
Extended diagnosis: Head anterior eyes conspicuously elongated, with moderately impressed transverse clypeal furrow in form of a letter V; clypeus and supraantennal plate nearly smooth, frons with distinct isodiametric reticulation; neck constriction incomplete, developed laterally as row of punctures with a wide gap at middle; labrum three-setose; mandible conspicuously elongated. Pronotum with reflexed lateral margin complete, straight but diverging in anterior half; lateral channel of pronotum of same width in its whole length, basal constriction narrow; flange flattened, six times as wide as constriction; disk smooth; with posterior angle completely rounded off but lateral margin knob like thickened. Elytron with all intervals smooth, without tubercle at declivity of third interval; striae developed as rows of distinct punctures, distance of umbilical setigerous punctures wider at middle, lateral margin at apex with distinctly widened emargination. Male genitalia (Fig. 16) with aedeagus conspicuously curved at middle, at apex flattened and distorted in ventral view, in lateral view spoon-like but asymmetrically widened at apex, rounded at tip of apex, each paramere quadrisetose. Female genitalia (Fig. 23) with coxostylus hook-like curved at apex, apically with large cone-like seta, ventromedially with thirteen nematiform setae, four of them elongated, laterotergite with three long and one short nematiform setae. Measurements. Body length 2.81-2.84 mm, width 0.93-0.96 mm, ratio length/width of pronotum 1-1.02, ratio length/width of elytra 1.64- 1.65; (n = 4).
Distribution: Southeast and central Borneo, Java, Sulawesi.
Type locality: Borneo: Riam Kanan, Martapoera.
description: Published as part of Balkenohl, Michael, 2021, Revisiting the Oriental genus Syleter Andrewes, 1941 (Coleoptera: Carabidae: Clivinini), pp. 357-374 in Revue suisse de Zoologie 128 (2) on pages 362-363, DOI: 10.35929/RSZ.0050, http://zenodo.org/record/5640135