Comprehensive Description

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 Length: 2.12–2.53 mm, width: 1.84–2.18 mm; body rufobrunneus, elongate oval, sides distinctly rounded; frons and epistoma depressed at middle; frontal stria with sides rounded, interrupted over antennal bases, forming a detached arc at middle; labrum less than twice as wide as long, weakly emarginate at apex; left mandible untoothed, right with small, acute basal tooth; pronotal disk lacking prescutellar impression, with very fine, sparse ground punctation and ~18 coarse lateral punctures; marginal pronotal stria interrupted behind head; submarginal pronotal stria continuous across front of pronotum, extending along anterior two-thirds of lateral margin, obsolete at base; median pronotal gland openings situated about two-thirds pronotal length from anterior margin; elytron with two complete epipleural striae, inner and outer subhumeral striae absent, striae 1-3 complete (3rd rarely interrupted), 4th and 5th striae present only in apical third, sutural present in apical three-fourths; elytral disk lacking apical marginal striae or punctures; prosternal keel and prosternal lobe with faint microsculpture; prosternal keel broad, weakly emarginate at base, carinal striae complete, convergent and nearly united along base, united anteriorly in broad arc; prosternal lobe with marginal stria close to margin, abbreviated at sides; mesoventral margin broadly projecting, marginal stria weak and variably fragmented at middle; mesometaventral stria strongly arched forward at middle to near anterior mesoventral margin; lateral metaventral stria extending toward inner third of metacoxa; 1st abdominal ventrite with complete inner lateral stria and abbreviated outer lateral stria; postmetacoxal fovea absent; propygidium and pygidium with moderately dense, fine ground punctation; propygidium with coarser elongate punctures dense in basal two-thirds, obsolete apically; pygidium lacking coarser punctures; marginal pygidial stria absent. Male genitalia (Figs 79A, C, E, G): accessory sclerites absent; T8 short, sides subparallel in basal two-thirds, convergent to apex, apical emargination narrow, basal emargination deep, subangulate, intersecting basal membrane attachment line, ventrolateral apodemes widely separated beneath; S9 with sides convergent to narrow, subacute apices, ventral halves approximate at base, diverging weakly to apex; T9 with sides subparallel in basal two-thirds, apices narrow; T10 with halves separate; S9 narrowest at midpoint, slightly widened to rounded base, apex angulately emarginate, but without distinct median emargination, apical flange entire or narrowed medially; tegmen widest just basad middle, weakly narrowing to apex, rather thick dorsoventrally near base, narrowed to apex but not curved ventrad; medioventral process thin, contained in ventral membrane, not projecting beneath; basal piece about one-fourth tegmen length; median lobe about half tegmen length. 


Creative Commons Attribution 3.0 (CC BY 3.0)

© Michael S. Caterino, Alexey K. Tishechkin

Source: ZooKeys

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