Axinoscymnus glotticus Ren et Pang, 1992

Peng, Feng, Xie, Xiufeng, Peng, Zhengqiang, Wang, Xingmin & Chen, Xiaoshen, 2022, A taxonomic review of the genus Axinoscymnus Kamiya, with descriptions of three new species (Coleoptera, Coccinellidae), Zootaxa 5154 (4), pp. 431-453 : 439-440

Axinoscymnus glotticus Ren et Pang, 1992

( Figs 5a–h )

Axinoscymnus glotticus Ren et Pang, 1992: 22 .— Pang et al. 2004: 90.

Diagnosis. This species resembles A. rai Kamiya in male genitalia but can be separated from the latter by the entirely brown elytra without dark brown markings on humeral and apical parts ( Fig. 5a ). It is also similar to A. gongxinensis Peng et Chen , sp. n. in external appearance, but can be recognized by the different shape of the abdominal postcoxal lines ( Fig. 5d ) and penis guide in lateral view ( Fig. 5f ).

Description. TL: 1.57–1.62 mm, TW: 1.06–1.10 mm, TH: 0.76–0.78 mm, TL/TW: 1.47–1.49, EL/EW: 1.08– 1.17, PL/PW: 0.52–0.57, HW/PW: 0.70–0.72, PW/EW: 0.66–0.68.

Body oval, weekly convex, dorsum with pale yellow pubescence ( Figs 5a–c ). Head dark brown, antennae and mouthparts yellow, tip of mandibles brown. Pronotum yellow, scutellar shield dark brown. Elytra dark brown. Prothoracic hypomeron and prosternum yellow. Mesoventrite and metaventrite dark brown. Legs yellow.

Head with fine and sparse frontal punctures, 2.0–2.5 diameters apart. Eye densely faceted, interocular distance about 0.33 times of head width ( Fig. 5c ). Pronotal punctures similar with those on frons. Surface of elytra with punctures much larger than those on pronotum, separated by 1.0–2.0 diameters.

Abdominal postcoxal lines complete and moderately recurved, reaching 3/4 length of ventrite 1 ( Fig. 5d ), area enclosed by the lines finely and sparsely punctate, irregularly distributed, broadly smooth along the lines; ventrite 1 with coarse and irregular punctures at middle.

Male genitalia. Penis short and slender, slightly broadened at base, apex pointed ( Fig. 5e ); tegmen with penis guide subtrapezoidal, parallel sided at basal 1/4, then strongly tapering to apex in inner view ( Fig. 5g ), about 3/4 length of parameres; parameres stout and elongate oval with few setae at apex in lateral view ( Fig. 5f ).

Material examined. Holotype: male, Qianling Park, Guiyan , Guizhou, 15. VIII. 1987, Pang XF leg ( SCAU, Fig. 5h ) . Paratype: 1♀, with same data as holotype ( SCAU) .

Distribution. China (Guizhou).

Remarks. We examined the holotype of this species, which is discolored and inconsistent with the original description in terms of body color.

Figures

FIGURE 5. Axinoscymnus glotticus Ren et Pang, 1992 (Holotype): a dorsal view b lateral view c frontal view d abdomen e penis f tegmen, lateral view g tegmen, inner view h labels of holotype. Scale bars: a–c: 0.5 mm, d: 0.1 mm, e–g: 0.05 mm.