Hybovalgus fulvosquamosus Moser, 1904

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 : 18-19

Hybovalgus fulvosquamosus Moser, 1904

Fig. 8 K–N

Hybovalgus fulvosquamosus Moser, 1904: 272 .

Hybovalgus fulvosquamosus – Schenkling 1922: 51.

Type material

Lectotype (here designated)

VIETNAM: ♂, Montes Mauson, Lang Son Pr ., Mt Mau Son , 21°50′56″ N, 106°58′00″ E, 2–3000 feet, Apr.–May, H. Fruhstorfer leg. ( MNHUB).

Paralectotypes (here designated)

VIETNAM: 4 ♂♂, same data as LT ( MNHUB).

Other material examined

VIETNAM: 1 ♂, Tonkin , Tam Dao , May 1997 ( ERC); 1 ♂, same data but May 1993 ( ERC). LAOS: 3 ♂♂ ( ZFMK), 1 ♂ ( ERC), Ban Saleui, Phou Pan Mts , 20°12′ N, 104°01′ E, 1300–1900 m, 7 Apr.–25 May 2010, C. Holzschuh leg.; 1 ♂, same data but 11 Apr.–15 May 2012 ( ZFMK).

CHINA: 25 ♂♂, Hainan, Sanya County, Mt. Janfeng , 1–12 Jul. 2004 ( ERC); 2 ♂♂, Hunan, Yizhang, Mangshan , 1270–1340 m, 14–17 Jul. 2008, Zhu Xiaoyu and Yang Zhuo leg., IOZ(E) 1945060/63 ( IZAS); 2 ♂♂, Hunan, Yizhang, Mangshan , Guizizhai , 24°57′24″ N, 112°55′56″ E, 1270 m, 14–15 Jul. 2008, Zhu Xiaoyu and Yang Zhuo leg., IOZ(E) 1945061/64 ( IZAS); 3 ♂♂, Hunan, Yizhang, Mangshan , Forest Park , Mt. Tiantaishan , 24°59′10″ N, 112°53′14″ E, 1572 m, 15 Jul. 2008, Zhu Xiaoyu leg. ( IZAS); 1 ♂, border of Hunan , Mangshan and Guangdong Nanling , 17 Jul. 2008, Liang Hongbin leg., IOZ(E) 1945062 ( IZAS); 1 ♂, Guangdong, Shixing, Chebaling Nature Reserve , Xianrendong ,(24°44′16″ N, 114°13′6″ E, 508 m, 23 Jul. 2008, Zhu Xiaoyu leg. ( IZAS) .

Remarks

The female is unknown.

Species variability

Species of variable size: length 6.7–8.3 mm; width 3.9–4.5 mm.

The specimens from Hainan have the pronotum, elytron and legs darker, sometimes nearly black. One specimen from Laos has the scales on the propygidium and pygidium darker. In general all scale tufts are small to barely noticeable.

Flight period

Hybovalgus fulvosquamosus adults appear in Vietnam and Laos between April and June. Instead, all Chinese specimens were collected in July. Collected between 500 and 1500 m.

Distribution

Described from northern Vietnam. New records are from Laos and China (Guangdong, Hunan and Hainan).

Figures

Fig. 8. A–F. Hybovalgus sexdentatus Arrow, 1944. A–B. ♂ (ERC). A. Habitus, dorsal view. B. Propygidium and pygidium. C–D. ♀ (ERC). C. Habitus, dorsal view. D. Propygidium and pygidium. E–F. PLT, ♂ (NHM). E. Aedeagus, dorsal view. F. Aedeagus, lateral view. G–J. Hybovalgus jordansi (Endrödi, 1952). G–H. ♂ (ERC). G. Habitus, dorsal view. H. Propygidiun and pygidium. I–J. PT, ♂ (HNHM). I. Aedeagus, dorsal view. J. Aedeagus, lateral view. K–N. Hybovalgus fulvosquamosus Moser, 1904. K–L. ♂ (ERC). K. Habitus, dorsal view. L. Propygidiun and pygidium. M–N. LT, ♂ (MNHUB). M. Aedeagus, dorsal view. N. Aedeagus, lateral view. Drawings: grey parts: parameres; white parts: phallobase.