IUCN threat status:

Not evaluated

Comprehensive Description

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Description

 Length: 2.03–2.22 mm, width: 1.65–1.75 mm; body rufescent, elongate ovoid, strongly convex, especially in anterior third of elytra; frons with conspicuous, fine ground punctation, moderately depressed at middle, frontal stria rounded at sides, absent or fragmented across front; labrum about 3× as wide as long, emarginate apically; pronotal disk with small, vague prescutellar impression, fine sparse ground punctation, few or no coarse lateral punctures, faintly depressed behind middle portion of anterior submarginal stria; marginal pronotal stria not descending to hypomeron, but often obsolete for short distance just in front of lateral midpoint, broadly interrupted behind head; anterior and lateral submarginal striae most often connected and continuous along lateral and anterior margins, may be interrupted behind eye, with anterior part briefly recurved posterad, or may be interrupted for some distance along lateral margin; elytron with dorsal striae rather broadly impressed, especially 4th and 5th, 1st and 2nd striae frequently weakened apically, two epipleural striae complete, outer subhumeral stria present in apical half, inner subhumeral stria absent, striae 1-4 complete, 5th stria present in apical half, sutural stria just slightly longer; venter with microsculpture on prosternal keel, in anterior corners of meso- and metaventrites; prosternal keel weakly emarginate at base, carinal striae widely divergent basally, narrowed between coxae, divergent anteriorly, microsculptured within, with secondary strioles alongside; prosternal lobe with weak swelling at middle in front of presternal suture; mesoventral margin very weakly projecting, marginal mesoventral stria weakly interrupted at middle; mesometaventral stria arched strongly forward to near mesoventral margin; lateral metaventral stria extending toward middle of metacoxa; propygidium rather narrow, only about twice as wide as median length, with fine ground punctation and rudimentary transverse microsculpture, with coarse punctures irregularly separated by about twice their diameters; pygidium with similar fine ground punctation, with few very slightly larger punctures sparsely interspersed; marginal pygidial sulcus generally absent, or represented by few weak apical fragments. Male genitalia (Figs 60A–F): accessory sclerites present; T8 elongate, with sides slightly convergent toward apex, basal emargination shallow, basal membrane attachment line distant from it, ventrolateral apodemes well developed, nearly meeting at midline; S8 short, sides divergent and curving strongly ventrad, apices widely divergent and acute, ventrally halves strongly divergent from midline, with weakly sclerotized median vela; T9 with apices relatively broad, subtruncate; T10 small, halves separate; S9 rather short, broad, with broadly triangular, translucent apex, apex arcuate, apical flange narrowed, but not completely interrupted at middle; tegmen short and broad, sides subparallel in basal two-thirds, narrowed to apex, medioventral process thin, widely ‘U’-shaped, forming a strong ventral process; basal piece nearly as long as tegmen, with thick distal apodemes articulating with tegmen; median lobe about half tegmen length, proximal apodemes thick. 

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© Michael S. Caterino, Alexey K. Tishechkin

Source: ZooKeys

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