Neolucanus brochieri Bomans & Miyashita, 1997

Neolucanus brochieri Bomans & Miyashita, 1997 View in CoL

Suggested Chinese common name: DZae圆OiNJƤ

Figs. 1F–H View FIGURE 1 ; 2E–F View FIGURE 2 ; 3M–P View FIGURE 3 ; 4I–L; 5M–P View FIGURE 5 ; 6D, H, L; 7D

Neolucanus brochieri Bomans & Miyashita, 1997: 2 View in CoL .

Type locality. Myanmar, Kachin State .

Type material examined. None.

Additional material examined. China: 2 males ( CXTZ), Yunnan Province, Nujiang Prefecture, Gongshan County, Dulongjiang valley , 2011, local collector leg .; 1 male ( CZHQ),, Yunnan Province, Nujiang Prefecture, Gongshan County, Dulongjiang valley , 19.VII.2023, 1800m, Feiyi Xin leg. ; 15 males ( CZHQ), Yunnan Province, Nujiang Prefecture, Lushui city, Pianma Township , VII.2015, 2500m, Xinxiong Deng leg.

Redescription of the male (n=18).

Body length: 29.4–48.1 mm ( Fujita 2010; Toshiyuki 2021; Yi 2023 and present paper)

Telodont. Habitus ( Fig. 1F–H View FIGURE 1 ). Head and pronotum black, elytra black or aurantiaceous with black borders; obviously glossy; body with invisible pubescence in dorsal view, labium with dense setae all legs with sparse yellow setae on surface.

Head transverse. Anterior ridge raised behind mandible and widely concave on the middle. Canthus long and wide, completely surround the eye. Clypeolabrum ( Fig. 3M View FIGURE 3 ) tiny and transverse, slightly visible in dorsal view, fused with frons. Mandible ( Fig. 3M–N View FIGURE 3 ) smooth from base to teeth on inner margin; in lateral view, clearly up-curved and thinnest at basal 1/3, a dorsal tooth behind apex forming an approximately arc-shaped and weakly protrudes beyond upper margin; in dorsal view, slightly curved, thickness almost regular from base to inner teeth, with 2–3 continuous small teeth. Antennal club with 3 antennomeres; antennomeres 8–9 subquadrilateral; antennomere 10 semi-elliptic.

Pronotum ( Fig. 3O View FIGURE 3 ) transverse, markedly longer and wider than head with slightly raised edges.Anterior margin bisinuate, posterior margin dimly bisinuate. Anterior angles blunt and directed forwards, lateral angles and posterior angles obtuse.

Elytra elongate, anterior margin of elytra clearly narrower than pronotum.

Legs. Protibia ( Fig. 3P View FIGURE 3 ) with 4–6 conspicuous sharp and short protuberances along outer margin, apex bifurcate with branches moderately sharp at tip; inner margin with a unclear gap at base. Mesotibia and metatibia straight and outer margin with a terminal spine, without external spines.

Abdomen and aedeagus. Abdominal tergite VIII ( Fig. 5M View FIGURE 5 ) subsemi-circular, lateral angles poorly defined. Abdominal ventrite VIII ( Fig. 5N View FIGURE 5 ) with smooth basal margin. Ventral plate of abdominal segment IX ( Fig. 5P View FIGURE 5 ) slender without membranous stripe, obviously constricted at base, then widens sharply and significantly, widens gradually to about apical 1/5. Aedeagus ( Fig. 6D, H, L View FIGURE 6 ) with a significant and relatively slender pair of sclerotized dorsal plates; ventral plate at apical end of basal piece membranous. Paramere relatively narrow, with a obvious curvature at base, apex of paramere curved outward. Penis large, almost as long as paramere in ventral view. Flagellum long, apex of flagellum simple.

Variation. Mesodont. Mandible shorter and straighter in dorsal view, with a rounded tooth at base. Amphiodont and priodont ( Fig. 2E–F View FIGURE 2 ). Mandible ( Fig. 4I–J View FIGURE 4 ) slender, straight and only slightly longer than head with unclear consecutive small teeth behind apex, with almost no branch at apex in lateral view; clypeolabrum ( Fig. 4I View FIGURE 4 ) clearly visible in dorsal view.

Differential diagnosis. See Table 1 View TABLE 1 and 2 View TABLE 2 .

Distribution. China (Yunnan); Myanmar (Kachin) ( Fujita 2010; Schenk 2012, 2014; Toshiyuki 2021; Yi 2023 and present paper).