Lebioderus maolanus Song & Maruyama & Peng 2017

Lebioderus maolanus Song and Maruyama, new species

(Fig. 3A)

Type material. Holotype: ♀ (SNUC), labeled ‘ CHINA: Guizhou, Libo County, Maolan N.R. (″Ễ), 25°16′38″N, 107°55′29″E, alt. 750m, 19.VII.2015, Jia-Yao Hu leg.’

Diagnosis. The new species is very similar to L. brancuccii Nagel, 2009 (Figs. 3B, 4D–F) in the shapes of antennae, pronotum and legs, but can be readily separated from it by the 1 st ventral projection rounded at apex (Fig. 4A: arrow; in L. brancuccii, see Fig. 4D), longitudinal groove much wider near the posterior margin of head (Fig. 4B; head of L. brancuccii, see Fig. 4E), lateral projection of pronotum more developed (Fig. 4C; pronotum of L. brancuccii, see Fig. 4F), and the glandular openings of pygidium not shaped as pronounced triangular.

Description. Female. Body (Figs. 3A, 5C) 7.84 mm; chestnut brown, but tibiae slightly paler.

Head (Figs. 3A, 4B) with distinct longitudinal groove along the midline; disc with shallow depressions at both sides of midline; temples well protruded laterad; dorsal surface matte, finely, densely punctate; sparsely covered with minute, recumbent setae; eyes rather large, less prominent than temples; neck narrow, strongly constricted.

Antennae (Fig. 4A) with segment I parallel-sided; Antennal club with four distinct transverse furrows; posterior margin with five produced denticles, 2nd dorsal denticles short; 3rd dorsal denticles almost as long as 4th and 5th; 2nd to 5th dorsal denticles apically with short trichome brush; anterior margin with 1st to 5th projections rounded at apex; each projection with a few short setae at apex; surface sparsely covered with minute, recumbent setae.

Pronotum (Fig. 4C) broad, about 1.75 times as wide as long; distinctly wider than head; divided by a transverse cleft; fore part about 0.92 times as long as the hind part; both ends of longitudinal groove indistinct around 1/2 of anterior part and anterior 1/3 of posterior part; dorsal surface matte, finely, densely punctate; sparsely covered with minute, recumbent setae.

Elytra (Fig. 3A) with 7 to 8 pairs of long setae on lateral margins and 2 pairs of long setae along the anterior part of midline; shoulders well protruded; dorsal surface matte; sparsely covered with minute, recumbent setae.

Pygidium (Fig. 3A) with sharp edge; glandular openings situated proximally at the left and right margin; disc smooth, moderately covered with minute setae.

Legs (Fig. 3A) robust; tibiae almost straight, strongly compressed; sparsely covered with short setae.

Male. Unknown.

Measurements. BL, 7.84; HW, 1.59; ACL, 1.75; PL, 1.28; PW, 2.24; EL, 5.23.

Etymology. Named after the type locality.

Distrubution. China (Guizhou).

Host ant. Unknown. Sifted from leave litter (Fig. 5D).