Holotype, ♂ (MHBU), labelled “25 July 2007; China, Zhejiang, Longquan County, Mt. Fengyangshan; H. Y. Liu and Z. H. Gao lgt.; the Museum of Hebei University” (white, rectangular, printed, in Chinese); “Holotype; Uloma fengyangensis sp. n. Liu & Ren det. 2015” (red, rectangular, printed and handwritten).

The new species is characterized by the following: mentum broadly cordate, with several short medial hairs and a pair of semi-circular hairy patches on near lateral margins; antennomere 5–10 sublinearly truncate, with one long groove on each inner side; pronotum with a pair of low protuberances on lateral margins and posterior margin of anterior impression respectively; metatarsomere 1 significantly longer than 4; apicale of aedeagus with a shallow depression on centre at basel 1/3, parallel–sided at apical 2/3 in dorsal view.

Male (Fig. 1A). Head transverse, with small punctures in apical half, and with sparse large punctures in basal half. Labrum trapezoidal, sparsely punctate, scattered with long and yellow hairs. Clypeus densely and distinctly punctate, anterior margin weakly emarginate, slightly elevated with two small ridges. Frontoclypeal suture deeply impressed. Genae slightly convex and extended, temples reduced. Eyes transverse, with at least 3–4 facets at narrowest point in lateral view; distance between eyes approximately 2.7 times longer than their diameter. Frons weakly convex but depressed on centre, with large punctures. Mentum (Fig. 2C) broad cordate, weakly emarginate at anterior margin, slightly concave with several short medial hairs, with a pair of semi-circular hairy patches on external sides. Ligula (Fig. 2C) deeply emarginate anteriorly, depressed in the middle with sparse long hairs. Terminal maxillary palpomere somewhat knife-shaped. Antennae (Fig. 2A) long, reaching to the middle of pronotum; antennomere 1 thick, 2 very short, 3 long and narrow, 4 short, 5 - 10 gradually widening, forming a more or less distinct club, 8–10 extremely transverse, nearly rectangular, 11 transverse-oval; 5–10 sublinearly truncate with one long groove at each innerside (Fig. 2B); ratio of the length (and the width) of antennomeres 2–11 as follows (mm): 8 (10): 9 (10): 7 (12): 7.5 (15): 7.5 (16): 8 (18): 8 (20): 9 (22): 9 (21): 12 (19).

Pronotum (Fig. 2D) transverse, nearly 1.5 times as wide as long, widest at middle, with small punctures widely spaced on centre and becoming denser toward sides, with reticulate microsculptures. Pronotum with a small and deep anterior impression and a pair of low protuberances on both sides and posterior margin of impression respectively, and with a shallow groove in the middle of posterior margin. Anterior margin emarginate with narrow border only at both apices, without border in the middle 1/3, and with dense short hair fringes. Lateral margins arcuate, strongly narrowing forward and less so from widest point to base, with narrow border. Basal margin slightly convex, with a pair of oblique shallow impressions. Anterior angles subrectangular, posterior angles obtuse. Prosternum with dense large and partly confluent punctures, posternal process (Fig. 2E) rounded in lateral view, smoothly descended at apex, with sparse small punctures centrally. Propleuron with long wrinkles and large confluent punctures.

Scutellum subtriangular, with very sparse small punctures. Elytra nearly parallel–sided; elytra distinctly punctato–striate, punctures of elytral rows small and only somewhat broader than stripes; intervals slightly convex, distinctly and sparsely punctate with several transverse wrinkles, lateral margins visible only at humeri in dorsal view. Hind wings developed.

Protibia (Fig. 2F) with two equal apical spurs; slightly concave, narrow at base, then strongly and gradually explanate on both inner and outer edges; inner edge weakly emarginate at base, slightly protruding to inner apex, fringed with yellow short hairs becoming denser and longer toward apex; outer edge with 8–9 sharp denticulations at apical 3/4 scattered with short hairs; dorsal surface with a long depression near apex and large sparse and confluent punctures; ventral surface with a row of several small sharp protuberances and short sparse hairs. Mesotibia feebly and gradually expanding toward apex, outer edge with small denticles and sparse long hairs. Metatibia feebly and gradually expanding toward apex, outer edge with sparse long hairs. Length ratios of metatarsomeres (Fig. 2G) 1 to 4 as follows: 35: 9: 9: 28.

Abdominal ventrites finely densely punctate, punctuation larger and subcontiguous towards lateral portions.

Aedeagus (Fig. 2H–I) with basale subparallel–sided; apicale slender, gradually narrowing with a shallow depression on centre at basel 1/3, parallel–sided at apical 2/3, truncate at apex in dorsal view, with a longitudinal depression on centre in ventral view, slightly curved in lateral view.

Female. Unknown.

Body length: 11.0 mm; elytral width at widest point: 4.5 mm.

The species epithet refers to the Mt. Fengyangshan where the species was collected.

The new species is similar to Uloma reticulata Liu, Ren & Wang, 2007, but can be distinguished from the latter by the following characters: (1) male mentum broadly cordate, slightly concave with several short medial hairs, with a pair of semi-circular hairy patches on near lateral margins in the new species (subhexagonal, with cordate convex in middle, without hairy patch in U. reticulata); (2) male antennomere 5–10 sublinearly truncate, with one long groove on each inner side in the new species (5–9 sublinearly truncate with one long groove in U. reticulata); (3) male pronotum with a pair of low protuberances on lateral margins and posterior margin of anterior impression respectively, anterior angles subrectangular in the new species (anterior impression of pronotum without protuberance in U. reticulata); (4) male metatarsomere 1 significantly longer than 4 in the new species (1 almost as long as 4 in U. reticulata); (5) apicale of aedeagus gradually narrowing with a shallow depression on centre at basel 1/3, parallel–sided at apical 2/3 in dorsal view in the new species (gradually narrowing from base to apex, then slightly widening nearly apex in U. reticulata).

Figure 1. 

Habitus, dorsal view. A Uloma fengyangensis sp. n., male B Uloma acrodonta sp. n., male C Uloma acrodonta sp. n., female D Uloma bonzica Marseul, 1876, male E Uloma bonzica Marseul, 1876, female. Scale bars 1 mm.

Figure 2. 

Uloma fengyangensis sp. n., male. A Antenna, ventral view B Antennomere 5 to 10, lateral view C Ligula and mentum, ventral view D Pronotum, dorsal view E Posternal process, lateral view FProtibia, dorsal view G Metatarsus, dorsal view H Apicale of aedeagus, dorsal view I Aedeagus, lateral view. Scale bars 1 mm.

Holotype, ♂, labelled “19 July 2012; China, Zhejiang, Longquan County, Mt. Fengyangshan; X. Wang and J. Jiao lgt.; the Museum of Hebei University” (white, rectangular, printed, in Chinese). Paratypes, 1♂1♀, labelled as holotype. All types have additional label “Holotype (and Paratype, respectively), Uloma acrodonta sp. n. Liu & Ren det. 2015” [red (and Paratype with yellow, respectively), rectangular, printed and handwritten], and all of them are deposited in MHBU.

The new species is characterized by the following: clypeus slightly elevated with two small ridges; antennomeres 5 and 7 obviously sharply protruding at inner border; pronotum with a small and shallow anterior impression; protibia broader, with 8–9 sharp large denticulations at apical 2/3 of outer edge; last ventrite with a shallow impression.

Male (Fig. 1B). Head nearly hexagonal, with dense small punctures in apical half, and with dense large punctures in basal half. Labrum trapezoidal, sparsely punctate, scattered with long yellow hairs. Clypeus densely and finely punctate, anterior margin weakly emarginate, slightly elevated with two small ridges. Frontoclypeal suture deeply impressed. Genae slightly convex and extended, temples reduced. Eyes transverse, with at least 2–3 facets at narrowest point in lateral view; distance between eyes approximately 3.5 times longer than their diameter. Frons convex but slightly depressed on centre, with large coarse punctures. Mentum (Fig. 3B) cordate, truncate basally, weakly emarginate at anterior margin, flat with fine transverse wrinkles in middle, with a pair of crescent-shaped hairy patches on external sides. Ligula (Fig. 3B) deeply emarginate anteriorly, depressed in middle with sparse long hairs. Terminal maxillary palpomere knife-shaped. Antennae (Fig. 3A) long, reaching to the middle of pronotum; antennomere 1 thick, 2 very short and subquadrate, 3 slender, 4 short, 5–10 gradually widening, forming a more or less distinct club, 11 semi-spherical; 5, 7 obviously sharply protruding at inner border; ratio of the length (and the width) of antennomeres 2–11 as follows: 8.5 (9): 18 (12.5): 12 (12.5): 11 (16.5): 11 (16): 11 (20.5): 11 (18): 10.5 (18): 10.5 (18): 15 (17.5).

Pronotum (Fig. 3C) slightly transverse, subquadrate, nearly 1.2 times as wide as long, widest at middle, with sparse small punctures widely spaced on centre and becoming denser toward sides. Pronotum with a small and extremely shallow anterior impression without protuberances. Anterior margin emarginate with narrow border only at both apices, without border in the middle 1/3, and with dense short hair fringes. Lateral margins arcuate, strongly narrowing forward and less so from widest point to base, with broad border. Basal margin slightly convex. Anterior angles sharp, posterior angles rectangular. Prosternum with sparse and large punctures, posternal process (Fig. 3D) rounded in lateral view, smoothly descended at apex, with coarse transverse wrinkles and two rows of short yellow hairs on centre. Propleuron with long wrinkles and large punctures. Metasternum very short.

Scutellum subtriangular, with sparse and small punctures. Elytra nearly parallel–sided; elytra distinctly punctato–striate, punctures of elytral rows small and only somewhat broader than stripes; intervals slightly convex, distinctly and sparsely punctate with several transverse wrinkles, lateral margins visible only at humeri in dorsal view. Hind wing (Fig. 3I) vestigial, narrow, and short.

Protibia (Fig. 3E) with two equal apical spurs; nearly straight, narrow at base, then feebly and gradually explanate on both inner and outer edges; inner edge weakly emarginate at base, distinctly protruding to inner apex, fringed with yellow short hairs becoming denser and longer toward apex; outer edge with 8–9 sharp denticulations at apical 2/3 scattered with short hairs; dorsal surface with a long depression near apex and large sparse and not confluent punctures; ventral surface with a row of several small sharp protuberances and short sparse hairs. Mesotibia feebly and gradually expanding toward apex, outer edge with small denticles and sparse short hairs. Metatibia (Fig. 3G) slightly curved, feebly and gradually expanding toward apex, outer edge smooth without denticles and hairs. Length ratios of metatarsomeres (Fig. 3F) 1 to 4 as follows: 46: 10: 9.5: 32.

Abdominal ventrites finely and densely punctate, punctuation larger and subcontiguous towards lateral portions; last ventrite (Fig. 3H) with a very shallow impression.

Aedeagus (Fig. 3J–K) with basale parallel–sided; apicale broad at base, then gradually feebly narrowing towards apex, subparallel–sided near apical, truncate and semi-circularly depressed at apex in dorsal view, with a longitudinal depression on centre in ventral view, slightly curved in lateral view.

Female (Fig. 1C). Mentum subcordate, with V-shaped convex on centre, without hair. Clypeus without ridges. Antennomere not protruding to inner border. Pronotum without anterior impression. Protibia with shape similar to that of male, inner edge not protruding to inner apex. Metatibia straight. Last ventrite without impression.

Body length: 12.5–13.0 mm; elytral width at widest point: 4.5 mm.

The species epithet refers to the sharply protruding at inner border of antennomere 5 and 7.

The new species is most similar to Uloma quadratithoraca Liu & Ren, 2008, but can be distinguished from the latter by the following characters: (1) male clypeus slightly elevated with two small ridges in the new species (without ridge in U. quadratithoraca); (2) male antennae long, reaching to the middle of pronotum, antennomeres 5 and 7 obviously sharply protruding at inner border in the new species (5 and 7 not protruding in U. quadratithoraca); (3) male pronotum with a small and shallow anterior impression in the new species (without anterior impression in U. quadratithoraca); (4) male protibia distinctly broader, with 8–9 sharp large denticulations at apical 2/3 of outer edge in the new species (narrower, with 8–9 undulant denticulations at apical 1/2 in U. quadratithoraca); (5) male last ventrite with a shallow impression in the new species (without impression in U. quadratithoraca).

Moreover, five additional species (U. intriconicula Liu, Ren & Wang, 2007, U. metogana Ren & Yin, 2004, U. takagii Masumoto & Nishikawa, 1986, U. rubripes rubripes (Hope, 1831) and U. rubripes minor Gebien, 1914) are known to occur in China and its surrounding areas with antennomere 5 and 7 obviously sharply protruding at inner border. The new species is easily distinguished from them based on shape differences in the male pronotum, pronotal anterior impression, protibia, metatibia, ridges of clypeus, and whether or not the pronotal anterior impression exists in female.

Figure 3. 

Uloma acrodonta sp. n., male. A Antenna, ventral view B Ligula and mentum, ventral view C Pronotum, dorsal view D Posternal process, lateral view EProtibia, dorsal view F Metatarsus, dorsal view G Metatibia, dorsal view H Last ventrite, ventral view I Hind wing, dorsal view J Apicale of aedeagus, dorsal view K Aedeagus, lateral view. Scale bars 1 mm.

Types, 1♂1♀ (MNHN, the Marseul Collection), Nzgzzalli. Others: 1♂1♀ (MHBU), China, Zhejiang, Longquan County, Mt. Fengyangshan, 25 July 2007, H. Y. Liu and Z. H. Gao lgt.; 2♂♂1♀ (NMNS), Fujitani Iga-Ueno, Mie, 3 November 1984, K. Ishida lgt.

Male (Fig. 1D). Mentum subhexagonal, slightly emarginate at anterior margin, with V-shaped convex and fine transverse wrinkles in the middle, without hair. Ligula depressed in the middle with dense hairs and hairy area wide. Antennae reaching to basal 1/3 of pronotum; antennomere 11 nearly semi-spherical. Pronotum nearly 1.5 times as wide as long, widest at basal 1/3; pronotum with a small deep anterior impression and a pair of low protuberances on both sides and posterior margin of impression respectively. Protibia with two unequal apical spurs, inner edge nearly straight at base, distinctly protruding to inner apex; outer edge with 7–8 sharp denticulations at apical 2/3; dorsal surface with large, dense and confluent punctures. Female (Fig. 1E) ligula with dense hairs and hairy area wide, pronotum without anterior impression, last ventrite without apical groove.

The Chinese specimens almost conform to the original description by Marseul (1876), but body length (11.7 mm) is slightly longer than that of the specimens from Japan (10.6 mm), and also the ratio of the distance between the eyes versus their diameter (ca. 2.5) less than that of the specimens from Japan (ca. 2.8). However, we think these two characters as intraspecific differences.

China: Zhejiang (new record); Japan (Marseul 1876, Gebien 1940, Nakane 1956, Masumoto and Nishikawa 1986, Kwon and Choi 1986, Löbl et al. 2008); Korea (Masumoto and Nishikawa 1986, Kwon and Choi 1986, Löbl et al. 2008).