Ichthyurus phungi Pic, 1923

Ichthyurus phungi Pic, 1923

Figs 6 F View Figure 6 , 8 F View Figure 8 , 10 C View Figure 10 , 12 C ‒ D View Figure 12 , 14 E ‒ H View Figure 14 , 15 View Figure 15

Ichthyurus phungi Pic, 1923: 3 .

Type material examined.

Holotype • 1 ♀ ( MNHN), Hoa Binh / ( Tonkin) ”, [h] “ phungi / n. sp. ”, [p] “ HOLOTYPUS ”.

Additional material examined.

China. Zhejiang • 1 ♂ 3 ♀♀ ( IZAS), “ Mokan Shan , 1‒3. V. 1936, O. PIEL leg. ” .

Re-description.

Body length (both sexes): 5.7‒6.5 mm; body width (both sexes): 1.2‒1.3 mm.

Male (Fig. 12 C View Figure 12 ). Colouration. Body yellow, head with a black transverse marking on vertex, antennae black, except for yellow antennomeres I ‒ III; pronotum with M-form black markings in middle of disc; elytra with a pair of longitudinal black stripes around humeri and along lateral margins, but not reaching apices; leg black at tarsi and slightly darkened at tibiae; abdomen black, except for yellow at posterior and lateral margins, terminal abdominal tergite with postero-lateral projections black at apices.

Eyes moderately protruding, interocular distance ca. 0.6 times of the diameter of an eye. Antennae extending to abdominal tergite III, antennomere II ca. 1 / 3 length of I, III ‒ XI subequal in length and approximately twice longer than II.

Pronotum 1.2 times wider than long, anterior margin slightly arcuate, lateral margins nearly parallel, posterior margin bisinuate, anterior angles feebly emarginate, posterior angles nearly rectangular.

Elytra 1.5 times longer than wide, ca. 2.6 times longer than pronotum, with lateral margins nearly parallel, sutural margins feebly sinuate and completely dehiscent from base, distance between sutural margins as wide as apical width of an elytron, apices rounded.

All thoracic legs slender and simple (Fig. 12 C View Figure 12 ); mesotrochanters (Fig. 6 F View Figure 6 ) each with a small and acute tooth at apex, mesotarsomeres (Fig. 6 F View Figure 6 ) I lengthened and ca. 2.2 times longer than II.

Terminal abdominal tergite (Fig. 15 A, C View Figure 15 ) ca. 1.2 times longer than wide, with postero-lateral projections ca. 1 / 3 length of the tergite, feebly arcuate at inner and outer margins (Fig. 15 C View Figure 15 ). Proctiger (Fig. 15 C View Figure 15 ) peach-shaped and sclerotised apically, completely surrounded by paraproct; paraproct (Fig. 15 C View Figure 15 ) weakly developed and tubular, feebly shrunk apically, feebly emarginate in middle of dorso-posterior margin, tergal flange weakly sclerotised, expanded at base and narrowly protruding apically.

Terminal abdominal ventrite (Fig. 15 E View Figure 15 ) trilobed, ca. 1.5 times as long as wide, fissured in middle of apical 3 / 4 part, with lateral lobes strongly diverging posteriorly and bidentate at inner margins, of which the subapical teeth large and rectangular, while the middle ones small and acute, nearly straight at outer margins, rounded at apices.

Abdominal sternite IX (Fig. 8 F View Figure 8 ) weakly sclerotised and subparallel-sided, approximately twice longer than wide, with posterior margin truncate, posterior right angle rectangular and left angle widely rounded, anterior left angle elongate beak-shaped and right angle strongly protruding anteriorly.

Aedeagus (Fig. 14 E ‒ H View Figure 14 ): right paramere slender and cylindrical, feebly hooked at apex (Fig. 14 E, H View Figure 14 ); left paramere straight and cylindrical, rounded at apex (Fig. 14 E, H View Figure 14 ), feebly longer than right paramere; setifore extension stout and weakly sclerotised, half the length of left paramere (Fig. 14 A, D View Figure 14 ); median lobe as long as tegmen, progressively narrowed basally (Fig. 14 E, H View Figure 14 ).

Female (Fig. 12 D View Figure 12 ). Similar to males, but body larger, eyes less protruding; terminal abdominal tergite (Fig. 15 B, D View Figure 15 ) ca. 1.1 times longer than wide, with postero-lateral projections approximately half the length of the tergite, outer margins nearly straight; terminal abdominal ventrite (Fig. 15 F View Figure 15 ) 1.1 times as wide as long, widest near base, rounded at lateral margins and confluent with outer apical angles, rectangularly protuberant in middle of posterior margin. Internal organ of the reproductive system (Fig. 10 C View Figure 10 ): bursa copulatrix tail-shaped at apex; accessory gland even in width at apical half part.

Distribution.

China (new record: Zhejiang), Vietnam.