Hybovalgus thibetanus ( Nonfried, 1891 )

Ricchiardi, Enrico, 2017, Revision of Chinese mainland Hybovalgus Kolbe, 1904, with description of a new species, and Excisivalgus Endrödi, 1952 reduced to synonymy with Hybovalgus (Coleoptera: Scarabaeidae), European Journal of Taxonomy 340 (340), pp. 1-32 : 22-27

publication ID

https://doi.org/ 10.5852/ejt.2017.340

publication LSID

lsid:zoobank.org:pub:2C6DC937-E543-4B8D-BF24-CED437F97676

DOI

https://doi.org/10.5281/zenodo.3850429

persistent identifier

https://treatment.plazi.org/id/03E9E508-444F-7C74-FDA8-F88AFE36498F

treatment provided by

Carolina

scientific name

Hybovalgus thibetanus ( Nonfried, 1891 )
status

 

Hybovalgus thibetanus ( Nonfried, 1891) View in CoL

Fig. 9 View Fig

New synonyms: Hybovalgus laticollis Arrow, 1944 ; Hybobalgus yunnanus Moser, 1906 ; Valgus savioi Pic, 1928 ; Dasyvalgus pubicollis Pic, 1928 , Hybovalgus versicolor Moser, 1908 .

Valgus thibetanus Nonfried, 1891: 372 View in CoL .

Hybovalgus yunnanus Moser, 1906: 403 View in CoL . syn. nov.

Hybovalgus versicolor Moser, 1908: 259 View in CoL . syn. nov.

Dasyvalgus pubicollis Pic, 1928b: 4 View in CoL . syn. nov.

Valgus savioi Pic, 1928a: 7 View in CoL . syn. nov.

Hybovalgus laticollis Arrow, 1944: 238 View in CoL . syn. nov.

Dasyvalgus thibetanus Krajčík, 2011: 92 , fig. 46.

Valgus thibetanus View in CoL – Schenkling 1922: 43.

Hybovalgus yunnanus View in CoL – Schenkling 1922: 51. — Krajčík 2011: 93.

Hybovalgus versicolor View in CoL – Schenkling 1922: 51. — Krajčík 2011: 93.

Dasyvalgus pubicollis View in CoL – Krajčík 2011: 90.

Valgus savioi View in CoL – Krajčík 2011: 96.

Hybovalgus laticollis View in CoL – Krajčík 2011: 92.

non Hybovalgus bioculatus View in CoL – Ma 1995: 196, fig. 168. Misidentification.

Type material

Note: all types here designated have a red type label. Alla data reported are copied from specimen labels.

Lectotype (here designated)

CHINA: ♂, Yunnan, (Thibet) Tsekou ( Cigu ), 20°00′23″ N, 98°53′54″ E, R. P. Dubernard leg. ( MNHUB).

GoogleMaps

Paralectotype (here designated)

CHINA: 1 ♂, same data as LT ( MNHUB).

Other type material examined

Lectotype of Hybovalgus laticollis Arrow, 1944

CHINA: ♂, Shandong, Wei-Hai-Wei, 37°30′53″ N, 122°07′10″ E, on oak, 25 Apr. 1899, T.B. Fletcher leg. ( NHM).

GoogleMaps

Syntype of Hybovalgus yunnanus Moser, 1906

CHINA: ♂, Yunnan ( SDEI).

Type of Valgus savioi Pic, 1928

CHINA: ♂, China, 23 Apr. 1918 ( MNHN).

Lectoype of Dasyvalgus pubicollis Pic, 1928

CHINA: ♂, Thibet ( MNHN).

Lectotype of Hybovalgus versicolor Moser, 1908 (here designated)

CHINA: ♀, Yunnan ( MNHUB).

Other material examined

CHINA: 12 ♂♂, Yunnan, 9 Sep. 1919, Simeon Ten leg. ( ZMUC); 2 ♂♂, Yunnan, Thibet Tse-Kou ( Cigu ), 20°00′23″ N, 98°53′54″ E, R. P. Dubernard leg. ( ERC); GoogleMaps 7 ♂♂, Yunnan, 100 km W of Kummig, Diaolin Nat. Res. (on Castanea flowers), 13–14 Jun. 1995, E. Jendek leg. ( ERC); 8 ♂♂, Yunnan, 100 km W of Kummig, Diaolin Nat. Res. , 22 May–2 Jun. 1993, E. Jendek and O. Sausa leg. ( ERC); 3 ♂♂, Yunnan ( ERC); 1 ♂, Yunnan, Tse Kou, 28°02′N, 98°54′E, 2000 m, 7–8 Jun. 2006, Jifi Klir leg. ( ERC); GoogleMaps 1 ♂, Shaanxi, Foping env., 120 km SW of Xian, 7 Jun. 1992, M. Bok leg. ( SNMS); 1 ♀, Shaanxi, Chin-Lins Mts ( Quing Ling Mts ), Apr.–May 1904 ( USNM); 1 ♀, Shaanxi, Chin-Lins Mts ( Quing Ling Mts ) ( ERC); 1 ♂ ( ERC), 2 ♂♂ ( MHNG), Sichuan, Wassuland, BZK Sankiangkou , Yengshaping , 1600 m, 15 May 1935, H. Becker leg.; 1 ♂, Sichuan, Shanglian, 24–26 May 2005, E. Kucera leg. ( ERC); 2 ♂♂, Sichuan, same data but 24–29 May 2002 ( ERC); 1 ♀, Sichuan, Luding Co, Moxi env. , 22 May–10 Jun. 1993, Beneš leg. ( ERC); 1 ♂ ( MNHUB), 1 ♂ ( ERC), Jangxi, Kiukiang ( Jujiang ), Jul. 1887, A.E. Pratt leg.; 1 ♂, Hubei, Ichang ( Ychang ), 6–8000 ft, May ( MNHUB); 1 ♂, Gansu, South Gansu , Venxian env. , 18–25 Jun. 1995, Beneš leg. ( ERC); 1 ♂, Gansu, Kansou mer., Hoei Sein ( ERC); 7 ♂♂, 5♀♀ ( AMNH), 1 ♂, 2 ♀♀ ( ERC), Yunnan, “ Thibet ”; 1 ♂, Jiangsu, Nanking , 29 Oct 1923 ( USNM); 1 ♂, Shaanxi, Wanrong, 35°25′18″ N, 110°50′40″ E, 27 Mar. 1995, Li Qingsen leg. ( IZAS); GoogleMaps 2 ♂♂, Jiangsu, Chemo , 11–12 May 1935, O. Piel coll., IOZ(E) 902241-42 ( IZAS); 4 ♂♂, 1 ♀, Jiangsu, Chemo, 23–26 Apr. 1918, IOZ(E) 902238-40, IOZ(E) 902473 ( IZAS); 1 ♂, Zhejiang, Mokanshan , IOZ(E) 902251 ( IZAS); 1 ♂, Zhejiang, Suichang suburb, 24 Apr. 1988, Dong Sansong leg., IOZ(E) 902440 ( IZAS); 1 ♂, Zhejiang, Chusan , 23 Apr. 1935, IOZ(E) 902253 ( IZAS); 1 ♀, Hubei, Xingshan, Longmen River , 31°19′44″ N, 110°29′50″ E, 1300 m, 10 May 1994, Li Wenzhu leg., 31572 Inst. Zool. Acad. Sin. ( IZAS); GoogleMaps 4 ♂♂, Sichuan, Luding, Detuo to Moxi , 1300 m, 20 May 2009, Yang Ganyan leg. ( IZAS); 1 ♂, Sichuan, Dujiangyan, Huaxi , 31°3′14″ N, 103°42′55″ E, 721 m, 12 May 2009, Yang Ganyan leg. ( IZAS); GoogleMaps 1 ♂, 4 ♀♀, Sichuan, Luding, Moxi , 29°38′55″ N, 102°7′56″ E, 1500 m, 17–18 Jun. 1983, Wang Shuyong and Chen Yuanqing leg., IOZ(E) 902156-57/235 ( IZAS); GoogleMaps 1 ♀, Sichuan, Wanxian, Wang’erbao, 30°40′7″ N, 108°45′30″ E, 1200 m, 28 May 1994, Zhang Youwei leg., 36965 Inst. Zool. Acad. Sin., IOZ(E) 902466 ( IZAS); GoogleMaps 1 ♂, Yunnan, Simao , 22°47′28″ N, 100°58′54″ E, IOZ(E) 902236 ( IZAS); GoogleMaps 1 ♂ ( H. bioculatus sensu Ma Wenzhen, 1992 ) Yunnan, Gongshan County, Bingzhongluo, 28°0′55″ N, 98°37′58″ E, 1790 m, Sino-Ameica Exped., 6 Jul. 2000, Liang H.B. N28.01 E98.61 ( IZAS); GoogleMaps 1 ♀, Yunnan, Gongshan , 27°44′49″ N, 98°40′21″ E, 1560 m, 15 Jun. 1983, IOZ(E) 902249 ( IZAS); GoogleMaps 1 ♂, Yunnan, Diqing, Weixi , Baijixun , 27°22′2″ N, 99°5′40″ E, 1900 m, 3 Jul. 1979, Yan Xiangqun leg. ( IZAS); GoogleMaps 1 ♂, Yunnan, Lushui, 25°49′45″ N, 98°51′52″ E, 2150 m, 11 Jun. 1981, Wang Shuyong leg., IOZ(E) 902244 ( IZAS); GoogleMaps 1 ♂, Yunnan, Dali , May 1981, IOZ(E) 902469 ( IZAS); 1 ♂, Yunnan, Heqing, Liuhe , 26°25′29″ N, 100°20′39″ E, 2000 m, 1 Jun. 1980, IOZ(E) 902252 ( IZAS); GoogleMaps 1 ♂, Yunnan, Kaiyuan, Mazheshao , 23°44′38″ N, 103°25′32″ E, 1800 m, 26 Apr. 1970, Wang Zhengjun etc. leg., IOZ(E) 902250 ( IZAS); GoogleMaps 1 ♂, Yunnan, Fugong , 1196 m, 18 May 1983, IOZ(E) 902468 ( IZAS).

Remarks

In a long period of time when valgine specimens rarely reached European museums from China, specimens of H. thibetanus were described several times under different names. Study of the types of several Chinese species, i.e., Hybovalgus yunnanus Moser, 1906 ; Valgus pubicollis Pic, 1928 ; Dasyvalgus savioi Pic, 1928 and Hybovalgus laticollis Arrow, 1944 , showed us that these species are morphologically close to one another and their aedeagi are nearly identical. Even Pic described this species twice under two different names in the same year ( Pic 1928a, 1928b). Finally, when Arrow (1944) described H. laticollis , due to World War II, types deposited in other European museums were inaccessible for study and he had to work on the basis of descriptions only, and it is known that Pic’s descriptions were too concise.

Until now the female of H. thibetanus was unknown. Krajčík (2011), listing H. versicolor Moser, 1908 within the Chinese Valginae (sensu Krikken 1984), doubtfully proposed that this species is the female of, and thus a junior synonym of, H. thibetanus . The study of the LT ( Moser 1908 did not specify how many specimens he had for study) of H. versicolor and morphological comparison with H. thibetanus confirm that the two specimens are male and female of the same species, whose correct name is H. thibetanus (new junior synonym). The synonymy is reinforced by the study of eleven other females collected in the same locality and at the same day as the males (see list of material examined).

Species variability

Males

In most specimens the legs are black, but in a few they are castaneous. The same is true for the propygidium and pygidium. The scales on the propygidium and pygidium vary in colour, from light testaceous to dark testaceous (see Fig. 9 View Fig A–D). Sometimes the last visible sternites and the anal sternite are glabrous instead of covered with thick scales. The size of males is variable: length from 5.7 to 7.6 mm; width from 3.5 to 4.2 mm.

Females

The colour of the integuments and scales varies in the same way as in males. The same with size: length from to 5.8 to 8.3 mm; width from 3.3 to 4.0 mm.

Flight period

Specimes were collected between the end of March and early June. Some specimens are labelled as having been collected in September and October (see list of studied material), but these records must be confirmed by other finds. Specimens have been collected from 700 to 2000 m.

Distribution

Hybovalgus thibetanus is endemic to continental China and inhabits most of the central provinces: Yunnan, Sichuan, Jiangsu, Shaanxi, Jiangxi, Hubei, Gansu and Zhejiang. The absence from the other central provinces of China (Guizhou, Hunan, Anhui and Henan) is probably due to a lack of collecting. Hybovalgus thibetanus seems to be absent from the southern Chinese Provinces; we have no records from Guangxi, Guangdong, Hainan or Fujian.

The name of this species, “ thibetanus ”, is from ancient collecting when the northernmost parts of Yunnan were considered to be part of Tibet. To date, there are no specimens of this species known to us collected in Myanmar, Arunachal Pradesh or the southern Xizang valleys, but the presence of H. thibetanus there is possible (see Fig. 10 View Fig , which shows the distribution of H. thibetanus in Yunnan’s valleys close to Myanmar's borders).

MNHUB

MNHUB

SDEI

SDEI

MNHN

France, Paris, Museum National d'Histoire Naturelle

ZMUC

Denmark, Kobenhavn [= Copenhagen], University of Copenhagen, Zoological Museum

ERC

ERC

SNMS

SNMS

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

AMNH

USA, New York, New York, American Museum of Natural History

IZAS

China, Beijing, Chinese Academy of Sciences, Institute of Zoology

MNHN

Museum National d'Histoire Naturelle

ZMUC

Zoological Museum, University of Copenhagen

USNM

Smithsonian Institution, National Museum of Natural History

MHNG

Museum d'Histoire Naturelle

AMNH

American Museum of Natural History

IZAS

Institut Zoologii Akademii Nauk Ukraini - Institute of Zoology of the Academy of Sciences of Ukraine

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Hybovalgus

Loc

Hybovalgus thibetanus ( Nonfried, 1891 )

Ricchiardi, Enrico 2017
2017
Loc

Dasyvalgus thibetanus Krajčík, 2011: 92

Krajcik M. 2011: 92
2011
Loc

Dasyvalgus pubicollis

Krajcik M. 2011: 90
2011
Loc

Valgus savioi

Krajcik M. 2011: 96
2011
Loc

Hybovalgus laticollis

Krajcik M. 2011: 92
2011
Loc

Hybovalgus bioculatus

Ma W. Z. 1995: 196
1995
Loc

Hybovalgus laticollis

Arrow G. J. 1944: 238
1944
Loc

Dasyvalgus pubicollis

Pic M. 1928: 4
1928
Loc

Valgus savioi

Pic M. 1928: 7
1928
Loc

Valgus thibetanus

Schenkling S. 1922: 43
1922
Loc

Hybovalgus yunnanus

Krajcik M. 2011: 93
Schenkling S. 1922: 51
1922
Loc

Hybovalgus versicolor

Krajcik M. 2011: 93
Schenkling S. 1922: 51
1922
Loc

Hybovalgus versicolor

Moser J. 1908: 259
1908
Loc

Hybovalgus yunnanus

Moser J. 1906: 403
1906
Loc

Valgus thibetanus

Nonfried A. F. 1891: 372
1891
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