Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae) Author Wang, C. - B. Author He, T. - L. Author He, L. Author Zhou, C. text Far Eastern Entomologist 2023 2023-02-02 470 8 22 http://dx.doi.org/10.25221/fee.470.2 journal article 293142 10.25221/fee.470.2 4513c8eb-e6c8-43c5-b1f1-b10d1b9dbc95 2713-2196 7616385

Table 1. Selected important morphological differences between males of Lucanus niu sp. n. and L. vitalisi Pouillaude, 1913

Characters	Lucanus niu sp. n.	Lucanus vitalisi
Body length	large-sized male shorter than 60	large-sized male generally longer
	mm (Fig. 1a–c)	than 70 mm (Fig. 3a–c)
Color of femora	reddish stripes distinct on ventral	reddish stripes distinct on ventral
	surfaces in large-sized male (Fig.	surfaces from large-sized to small-
	1b), but obscure in moderate-sized	sized males (Fig. 3b, e, h)
	and small-sized males (Fig. 1e, h)
Color of tibiae	reddish stripes obscure on ventral	reddish stripes distinct on ventral
	surfaces (Fig. 1b, e, h), and absent	surfaces (Fig. 3b, e, h), and obscure
	on dorsal surfaces (protibiae tinged	on dorsal surfaces (Fig. 3a, d, j)
with reddish) (Fig. 1a, d, j)
Mandibles	about 2.3 times as long as head in	about 3.0 times as long as head in
	large-sized male (Fig. 1a–c); inner	large-sized male (Fig. 3a–c); inner
	mandibular margin with unarmed	mandibular margin with unarmed
	carina at base, preceded by diastema,	carina at base, preceded by diaste-
	7–8 small denticles, major inner	ma, 17–18 small denticles, major
	tooth, and 2–3 distal small denticles	inner tooth, and 7–8 distal small
	in large-sized male (Fig. 1a, b);	denticles in large-sized male (Fig.
	major inner tooth relatively more	3a, b); major inner tooth relatively
	prominent in large-sized male (Fig.	less prominent in large-sized male
	1a, b); apical part thick and strong	(Fig. 3a, b); apical part much more
	in moderate-sized and small-sized	slender in moderate-sized and
	males (Fig. 1d, e, g, h)	small-sized males (Fig. 3d, e, g, h)
Head: anterior	narrower; substraight at apical	broader; rounded at apical margin
ridge	margin
Abdominal	membranous area semielliptical	membranous area trapezoidal
sternite VIII	(Fig. 2b)	(Fig. 4b)
Abdominal	apical expansion relatively slender,	apical expansion relatively broad,
sternite IX	and with long, membranous,	and with short, membranous, me-
	median stripe in apical 5/8 (Fig. 2c)	dian stripe in apical 1/3 (Fig. 4c)
Basal piece	apex of distal end with relatively	apex of distal end with relatively
	deep emargination (Fig. 2g)	shallow emargination (Fig. 4g)
Parameres	apex strongly upturned in lateral	with apex less strongly upturned
	view (Fig. 2i)	in lateral view (Fig. 4i)
Penis	moderately wide, weakly expanded	rather wide, strongly expanded
	near apex (Fig. 2f)	near apex (Fig. 4f)