Mescirtes kojimai, Yoshitomi & Klausnitzer, 2016

Yoshitomi, Hiroyuki & Klausnitzer, Bernhard, 2016, A new species of the genus Mescirtes Motschulsky, 1863, (Coleoptera: Scirtidae: Scirtinae) from Vietnam, with a species list of the world, Raffles Bulletin of Zoology 64, pp. 123-126 : 123-124

Mescirtes kojimai , new species

( Figs. 1 , 5–7 )

Type series. Holotype: Male ( TUA), “[ Vietnam] Mt. Lang Biang Lam Dong Prov. 17 February 2011 Hiroaki Kojima leg.”

Description. Male. Body oval, strongly convex dorsally, shiny, closely covered with yellowish-white setae. Coloration of head, pronotum, scutellar shield, elytra, and ventral part of thorax black; antennae, legs, elytral maculations, and abdominal ventrites yellowish-brown; elytral maculations consisting of two pairs of oblong spots and oblique zigzag stripe, forming semicircular.

Head large, flat dorsally, finely punctate; eyes large, prominent; the distance between eyes about 2.9 times as long as the maximum diameter of an eye. Antennae (antennomeres X and XI missing in holotype) slightly serrate in antennomeres IV–IX. Pronotum transverse, slightly convex dorsally, punctate as in head; anterior margin straight; lateral and posterior margins gently arcuate; antero- and posterolateral corners obtuse; PW / PL 2.46 . Elytra strongly convex dorsally, widest at the middle, closely and finely punctate; humeral parts slightly projecting dorso-laterally; EL/EW 1.13; EL/ PL 3.71 ; EW/ PW 1.34 ; TL/EW 1.43. Hind wings developed .

Tegmen ( Fig. 5 ) oblong, with arcuate basal margin, widest at basal 1/4; parameres sparsely punctate, with obtuse apices. Penis ( Figs. 6, 7 ) long, about 0.93 times as long as tegmen; pala oblong, widest near the base, straightly tapered apically; ventral projection long, anchor-shaped; dorsal projection long, bifid in apical part.

Female. Unknown.

Measurement. Holotype: TL 3.30 mm; PW 1.72 mm; PL 0.70 mm; EL 2.60 mm; EW 2.30 mm.

Remarks. This is species is distinct in having unique elytral maculations (unicolored or with simple spots in the elytra of the other species of this genus) and anchor-shaped ventral projection.

Etymology. The species name is given for Dr. Hiroaki Kojima (TUA) who is a specialist of Curculionidae and the collector of the holotype.

Figures

Figs. 1–4. Mescirtes spp.: 1, Mescirtes kojimai, new species, holotype; 2–4, Mescirtes wasungenensis Klausnitzer, new name: 2, 3, from Thailand, male (2) and female (3); 4, from Laos, female. Scale bar = 1.0 mm.

Figs. 5–7. Male genitalia of Mescirtes kojimai, new species, holotype. 5, Tegmen in ventral view; 6, 7, penis in ventral (6) and lateral (7) views.