Zyras (Zyras) pallipyga PACE, 2008

Assing, Volker, 2017, On Zyras sensu strictu in the East Palaearctic and Oriental regions III, with a focus on the Southeast of Continental Asia and the Sunda Islands (Coleoptera: Staphylinidae: Aleocharinae: Lomechusini), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 213-246 : 231-232

Zyras (Zyras) pallipyga PACE, 2008

( Figs 17, 22 , 37 )

Zyras (Zyras) pallipyga PACE, 2008: 150 f.

Type material examined: Holotype ♀: “♀ / SABAH: E Mt. Kinabalu , 1150 m, rte Ranau – Kota Kinabalu , 24.V.1987, Burckhardt - Löbl / Holotypus Zyras pallipyga mihi, det. R. Pace 2000 / Zyras pallipyga n. sp., det. R. Pace 2000 / MHNG ENTO 00010003 / Zyras pallipyga Pace , det. V. Assing 2017” ( MHNG).

Comment: The original description is based on a unique female from “ Sabah, E Mt. Kinabalu, ..., Ranau– Kota Kinabalu ” ( PACE 2008).

Additional material examined: Malaysia: 1 ♀, Sabah, 50 km E Kota Kinabalu, Crocker Mountains, Gg. Emas , 16–27.IV.1993, leg. Jenis (cAss) .

Redescription: Small species; body length 4.6–4.8 mm; length of forebody 2.4 mm. Coloration ( Figs 17, 22 , 37 ): head and pronotum reddish; elytra yellowish-red, with or without the postero-lateral portions slightly darker; abdomen with segments III–VI reddish to pale reddish-brown and segments VII–VIII yellowish red; antennae brown to dark-brown with antennomeres I–II pale-reddish and XI dark-reddish; maxillary palpi yellowish-red with the apical palpomere yellow.

Head ( Fig. 22 ) distinctly transverse, median portion extensively impunctate; punctures in lateral portions moderately coarse and sparse. Eyes moderately large, slightly longer than postocular region in dorsal view. Antenna ( Fig. 17 ) short and clavate, 1.20–1.25 mm long; antennomere IV disc-shaped, approximately twice as broad as long; antennomeres V–X disc-shaped, of gradually increasing width and increasingly transverse, X approximately three times as broad as long, and XI broad and short, approximately as long as the combined length of IX and X.

Pronotum ( Fig. 22 ) distinctly transverse, approximately 1.2 times as broad as long and 1.2 times as broad as head, broadest near anterior angles, moderately convex in cross-section; lateral margins straight in posterior two-thirds in dorsal view; posterior angles weakly marked; punctation sparse, moderately coarse, and irregularly distributed; impunctate median band broad.

Elytra ( Fig. 22 ) approximately 0.9 times as long as pronotum; punctation very sparse and fine, posteriorly even sparser. Hind wings present. Legs relatively short; metatarsomere I rather short, shorter than the combined length of II–IV.

Abdomen ( Fig. 37 ) narrower than elytra, with deep anterior impressions on tergites III–V; anterior impressions of tergites III–V and anterior portion of tergite VI each with a transverse row of defined and not very coarse non-setiferous punctures, with a lateral setiferous puncture on either side, and with numerous fine setiferous punctures at posterior margins; tergites IV–VI additionally with a median pair of coarser setiferous punctures; tergite VII only with scattered and very fine non-setiferous punctures anteriorly and with two transverse series of setiferous punctures bearing long dark setae posteriorly, posterior margin with palisade fringe; tergite VIII with setiferous punctation only in posterior fourth, posterior margin convex.

♂: unknown.

♀: posterior margin of sternite VIII distinctly concave in the middle.

Comparative notes: This species is characterized by small size, its coloration, conspicuously clavate and short antennae, very sparse punctation of the pronotum and elytra, and a distinctive punctation pattern of the abdomen (defined non-setiferous punctures present on tergite VI, but not on tergite VII).

Distribution: The currently known distribution is confined to two localities to the east of Mount Kinabalu, Borneo ( Malaysia: Sabah). The holotype was collected at an altitude of 1150 m.

Figures

Figs 1–26: Antenna (1–18) and forebody (19–26) of Zyras spp. (1–17, 19–26) and Myrmedonota modiglianii (18): punctipennis, holotype (1, 19); facundus, lectotype (2, 24); latibasalis (3, 25); kinabaluensis, holotype (4, 21); matangensis, holotype (5, 26); bryanti, holotype (6, 23); granulipennis, holotype (7); flavorufus, lectotype (8); rutrilobatus (9); parvilobatus (10); hirtiventris (11–12; 11: holotype; 12 female paratype); hlavaci (13–14; 13 holotype; 14 paratype from Selangor); lunatus (15); elegantulus, lectotype (16, 20); pallipyga, holotype (17, 22). Scale bars: 1.0 mm.

Figs 27–39: Forebody (27–33), abdomen (34–38), and median portion of tergite VIII (39) of Zyras spp.: flavorufus, lectotype (27); parvilobatus (28); lunatus (29); granulipennis, holotype (30); rutrilobatus (31); hirtiventris (32); hlavaci, holotype (33); punctipennis, holotype (34); elegantulus, lectotype (35); facundus, lectotype (36); pallipyga, holotype (37); bryanti, holotype (38); latibasalis (39). Scale bars: 27–38: 1.0 mm; 39: 0.2 mm.