Strongylium, Ditmar, 1809

Wang, W. Q., Li, P. & Yuan, C. X., 2018, One new recorded species of the genus Strongylium (Coleoptera: Tenebrionidae) from China, Far Eastern Entomologist 360, pp. 15-20 : 16-19

Strongylium rufipenne L. Redtenbacher, 1844

Figs 1–4

Strongylium rufipenne L. Redtenbacher, 1844: 533.

Strongyliastrum braetii Fairmaire, 1894: 40. Synonymized by Gebien, 1944: 524.

Strongylium semirufum Pic, 1917: 15. Synonymized by Gebien, 1944: 524.

TYPE MATERIAL. Strongylium semirufum : TYPE – 1 unsexed, Tonkin, Chapa , correct locality unknown, 1916 , R. Vitalis de Salvaza / Type / Strongylium semirufum Pic [h.] /

Muséum Paris Coll. M. Pic / Strongylium semirufum Pic ( MNHN); Strongyliastrum braeti:

TYPE – 1 unsexed, Pedong, A. Desgodins / Strongyliastrum braeti Fairm. [h.] / Muséum

Paris Coll. L. Fairmaire / Strongylium braeti Fairmaire ( MNHN).

OTHER MATERIAL EXAMINED. China: E-Tibet, N of Brahamaputra great bend,

2050–2400 m, 30°00´–07´N, 94°52´– 95°09´E, 16−20.VII 1992, 1 unsexed, L.& R . Businsky leg./ Jaroslav Turna coll. 1993 ( CSBC); Tibet, Nielamu, Zhangmu , 2400–3000 m, 11. V

1966, 2 unsexed, Shuyong Wang leg. ( IZAS); Chongqin, Jiangjin city, Simianshan, 10.VII

2010, 1 unsexed, Jianyue Qiu leg. ( CJQC); Guangxi, Tianlin, Guangdongping, 1200–1300

m, 27. V 2002 , 1♂, Xiujuan Yang leg.; Guangxi, Tianlin, Chengwanglaoshan, 1200–1300 m,

28. V 2002, 1♀, Xiujuan Yang leg.; Guangxi, Napo , Fude, 1350 m , 19. V 2000, 1♀, Chaodong

Zhu leg.; Sichuan, Tianquan county , Labahe, 28.VII 2004, 1♀ , Xiujuan Yang & Huiran Hua leg.; Sichuan, Tianquan contry, Labahe, 29.VII 2004, 1♀ ， Lei Liu leg.; Sichuan, 1120 m ,

12.VII 2012, 2♀ ， Yimin Yang & Gang Tan leg.; Sichuan, Hongya county , Wawushan ,

Leiping, 1130 m, 14.VII 2012, 1♂ ， Yiming Yang & Yunzhen Li leg.; Yunnan, Lushui county ,

Pianma town , 11. V 2002, 1♂ ， Xiujuan Yang & Yushuang Liu leg.; Yunnan, Malipo, 30. V

2007, 1♂, collector unknown； Yunnan, Yangbi county, Shunbi , 21.V 2004 , 1♀, Xiujuan

Yang & Yushuang Liu leg.; Yunnan, Yingjiang, Xima , 16.V 2013, 1♂ , Changqing Chen leg.;

Yunnan, Shuifu county, Taiping , 700 m, 23.VII 2010, 1♂, Jishan Xu leg. ; Yunnan, Gaoligong

Mt., 23–27.VII 2012, 1♀; Yunnan, Dali, Cangshan , 1400–3000 m, 10–20.V 1998, 2♀ ,

Benyong Mao leg.; Yunnan, Weixin, Daxueshan , 19. VIII 2013, 1♂, Xun Bian & Guanglin

Xie leg.; Hubei, Shennongjia, Yangri, 400 m, 27.VI 1984, 1♀ , Xiaoyuan Mao leg.; Hubei ,

Shennongjia, Songbai Town, 900–1300 m, 18–VII 2003, 1♀, Desheng Liu leg.; Hubei,

Wufeng, Houhe , 16.VII 2002, 1♂, Jun Guo leg. ; Hubei, Wufeng, Houhe , 18.VII 2002, 1♀ ,

Huixing Zhou leg. ( HBUM); China: « Strongylium braeti Fairm., g??. Chine / Muséum Paris

Coll. L. Fairmaire», 1 unsexed ( MNHN); Sichuan, Baoxing, Fengtongzhai, Dashuigou,

30.54°N, 102.91°E, 1500 m, 31.VII 2016, 1♀, Caixia Yuan leg.; Sichuan, Baoxing, Fengtongzhai, Dengchigou , 30.54°N, 102.94°E, 1700–2000 m, 1.VIII 2016, 2♂, 1♀, Caixia Yuan leg., Sichuan, Baoxing, Fengtongzhai, Dachigou , 30.4°N, 102.8°E, 1200–1300 m, 2.VIII

2016, 1♂, 1♀, Caixia Yuan leg. ( YUIC). India: India orient, 1 unsexed ( HNHM); Indian

Uttar Prad, Nainital zloom, 24. VI 1983, 1♂, det. Masumoto, 1997 ( HNHM); Nepal:

Himalaya, Mt. Everest , 1♀ , Dr. Kaszab det. ( HNHM); nr. Katmandu, VI 1987, 2♂, 3♀ , 2

unsexed, K. Akiyama leg., O. Merkl det. ( HNHM); Dhankuta Distr., Arun Valley, Hille to

Shidua, Bhedetar, 2000–2700 m, 24–28. V 1996, 1 unsexed, P. Čechovský leg. ( SMNS);

Dolakha Distr. Sutidhoban, 1050 m, 27–28. V 2000, 1 unsexed, Schawaller leg. ( SMNS) ;

Vietnam: N. Vietnam, Cao Bang, 26–28. V 1995, 1 unsexed, Coll. Masumoto ( NSMT) .

tibia, lateral view; E – hind taisi, lateral view; F – abdominal ventrite V; G – aedeagus, dorsal view; H – the same, lateral view. Scale bar 1 mm.

DESCRIPTION. MALE. Body elongate, slightly convex longitudinally, basal 2/5 of elytra subparalleled. Piceous, elytra and abdomen brownish red to dark red, mouthparts, tarsi brownish black, antennae brownish black; dorsal and ventral surface strongly vitreously shining,

especially on pronotum. Clypeus wealy sparsely punctate, frontoclypeal suture straight in median part, extending out margins; genae strongly raised with rounded margins; frons steeply inclined anteriorly, with an interrupted impression in middle, elevated after frontoclypeal suture and between eyes, unevenly punctate, distance between eyes 1.27 times as wide as the transverse diameter of an eye in dorsal view; eyes medium-sized, weakly protruding, each side with gouge along the interior sides of posterior margins. Antennae subclaviform, sparsely haired, reaching the basal 2/9 of elytra, ratio of the length of antennomeres II–XI as 0.32,

0.72, 0.43, 0.43, 0.49, 0.56, 0.58, 0.61, 0.59, 0.66.

Pronotum subquadrate, 1.1 times as wide as long, widest at middle; anterior margin almost straight, finely bordered; posterior margin bisinuate, thickly rimmed; lateral margins arcuated, bordered along entire length, produced in middle; dorsal surface convex anteriad,

with a median-groove, both sides roundly foveate at basal 1/3, impressed near posterior angles, disc unevenly punctate; anterior angles rounded, posterior angles weakly acute.

Scutellum subtriangular with arcuate sides, slightly impressed in median.

Elytra about 2.21 times as long as wide, 4.03 times the length and 1.52 times the width of pronotum, widest at apical 1/3; dorsum flattened, strial punctures elliptical, finely and closely set, becoming larger and sparser laterally, finely grooved apically; intervals weakly convex;

apices rounded. Abdominal ventrites sparsely punctate and with short hairs, which longer on anal sternite, and punctures becoming closer, weakly impressed apically. Legs mediumsized, protibiae gently bent interiad, meso-, metatibiae almost straight, length ratio of metatarsomeres I–IV as: 1.19, 0.45: 0.47: 1.35. Aedeagus elongated fusiform, 3.01 mm long,

0.51 mm wide, apicale 1.21 mm, gently curved basally in dorsal view.

FEMALE. Distance between eyes 1.27 times as wide as the transverse diameter of an eye in dorsal view; antennae stouter, ratio of the length of antennomeres II–XI as 0.33, 0.75, 0.53,

0.48, 0.47, 0.52, 0.53, 0.57, 0.54, 0.69; anal sternite without impression; protibiae straight.

MEASUREMENTS. Body length: 11.5−15.2 mm.

DISTRIBUTION. China (Hubei, Guangxi, Chongqing, Sichuan, Yunnan, Xizang), Vietnam, India, Nepal, Bangladesh ( Fig. 4 ) .

NOTES. This species is similar to Strongylium masumotoi Yuan et Ren, 2006 from

China (Sichuan), but distinguishable by body piceous, elytra and abdomen dark red, elytra without patches, and pronotum very sparsely punctate. Two species, S.rufipenne and S.

masumotoi, compose a species group of Chinese Strongylium . This species group is characte-

rized by body weakly fusiform, base of elytra subparalleled; eyes smaller, distance between eyes more than 0.7 times as wide as transverse diameter of an eye in dorsal view; antennae stout, subclavate.

The stenochid beetles often have a narrow distribution, but S.rufipenne have wide distribution in the Oriental Region, we found that it is diurnal during collection in Sichuan

Province, and can be flying over short distances in the habitat ( Fig. 3 A, B ), so we thought these maybe the reason of its wide distribution.

Figures

Fig. 1. Strongylium rufipenne, male. A – head; B – pronotum; C – antenna; D – hind

Fig. 2. Habitus of Strongylium rufipenne. A – male; B – female. Scale bar 1 mm.

Fig. 3. Habitat and habitus of Strongylium rufipenne. A, B – habitat in Sichuan Province, Baoxing county, Muping town, Dachigou; C – habitus.

Fig. 4. Distribution of Strongylium rufipenne.