Ypsiloncyphon micans (Klausnitzer, 1973)

Yoshitomi, Hiroyuki, 2015, New species of the genus Ypsiloncyphon (Insecta: Coleoptera: Scirtidae: Scirtinae), Zootaxa 3904 (4), pp. 451-500 : 493

Ypsiloncyphon micans (Klausnitzer, 1973)

( Figs. 26 I, 34)

Cyphon micans Klausnitzer, 1973: 108 .

Ypsiloncyphon micans: Klausnitzer, 2009: 257 ; Zwick, 2014: 32 . Cyphon paramicans Klausnitzer, 1979: 1 .

Ypsiloncyphon paramicans: Klausnitzer, 2009: 257 . Synonymized by Zwick (2014).

Additional specimens examined. 1 Male ( EUMJ): “( NEW GUINEA) Port Moresby 26. XII, 1971 S. Nagai leg.”; 1 male ( EUMJ): “ NEW GUINEA Lae 11. X, 1974 M. Sakai leg.”

Redescription. Male. Body ( Fig. 26 I), oval, convex dorsally, shiny, closely covered with silver setae. Coloration of body blackish brown; anterior part of head, mouthparts, antennae and legs light brown.

Head moderate in size, flat dorsally, finely punctate; clypeus short, with straight front margin. Eyes large, prominent; the distance between eyes about 2.3 times as long as the maximum diameter of an eye. Antennae moderate in length, reaching about proximal 1/4 of elytra. Pronotum densely punctate, slightly depressed in lateral parts; antero- and postero-lateral corners obtuse; anterior margin straight; lateral and posterior margins gently arcuate; PW/PL 2.00. Scutellar shield finely punctate, equilaterally triangular. Elytra oval, widest at the middle, punctate as on pronotum; humeral parts slightly projecting; apices right-angled; EL/EW 1.15; EL/PL 3.50; EW/PW 1.53; TL/EW 1.48. Legs relatively long and slender.

Caudal margin of sternite VII ( Fig. 34 A) arcuate. Tergite VIII ( Fig. 34 B) moderately sclerotized, subquadrate, bearing short setae and spines along posterior margin, with a pair of relatively long apodemes. Tergite IX ( Fig. 34 C) slightly sclerotized, bearing short spines in apical part, with a pair of long apodemes. Sternite IX ( Fig. 34 E) moderately sclerotized, asymmetrical, Y-shaped, pointed at apices. Tegmen ( Fig. 34 D) short, moderately sclerotized, Y-shaped, bifid in apical 8/9, pointed at apices. Penis ( Fig. 34 F) long, moderately sclerotized, about 1.2 times as long as tegmen; pala slender, expanded basally, arcuate in basal margin; parameroids separated, finely punctate, obtuse at apices; trigonium long, subtriangular, pointed at apices.

Measurements. Male (n = 1): TL 1.80 mm; PW 0.80 mm; PL 0.40 mm; EL 1.40 mm; EW 1.22 mm.

Distribution. New Guinea.

Figures

FIGURE 26. Habitus of Ypsiloncyphon spp., holotype, male (except for C, F, H, I). A) Y. wallacei sp. n., B) Y. chiangmaiensis sp. n., C) Y. luteoapicalis (Ruta, 2007), non-type specimen, male, D) Y. flexus sp. n., E) Y. gedensis sp. n., F) Y. gedensis sp. n., paratype, female, G) Y. teruhisai sp. n., H) Y. teruhisai sp. n., paratype, female, I) Y. micans (Klausnitzer, 1973), non-type specimen, male, J) Y. lanigerus sp. n., K) Y. cervus sp. n. Scales: 1.0 mm.

FIGURE 34. Ypsiloncyphon micans (Klausnitzer), male. A) sternites V – VII, B) tergite VIII, C) tergite IX, D) tegmen, E) sternite IX, F) penis in ventral view.