Paratrichius marmoreus (Moser, 1902)

Ricchiardi, Enrico, Lu, Yuanyuan, Li, Sha & Ming, Bai, 2022, Notes on Paratrichius Janson, 1881 inhabiting Hainan Island, with description of a new species and the definition of two new junior synonyms (Coleoptera: Scarabaeidae, Cetoniinae), Fragmenta entomologica 54 (1), pp. 133-142 : 136-139

publication ID

https://doi.org/ 10.13133/2284-4880/716

DOI

https://doi.org/10.5281/zenodo.12784842

persistent identifier

https://treatment.plazi.org/id/03A387F6-FFC6-FFEF-FD1E-227FFEBB99F7

treatment provided by

Felipe

scientific name

Paratrichius marmoreus (Moser, 1902)
status

 

Paratrichius marmoreus (Moser, 1902) View in CoL

Studied material

Paratrichius marmoreus (Moser, 1902) type series. HT ♂ MNHUB, Vietnam, Lang Son, Montes Mauson (Mau Son, Long San Prov, 21°51’N, 106°54’E) GoogleMaps .

Other taxon placed in synonymy with P. marmoreus by Krajcik (2008): Trichius bicolor Moser, 1902 : HT ♀ MN- HUB, Montes Mauson (Mao Son, 21°51’N, 106°54’E), 2000-3000’, Apr-May, H. Fruhstorfer legit.

Other studied material of Paratrichius marmoreus (Moser, 1902) . China: Yunnan. S.E. Yunnan, Vietnam border, Xichou vinc., BMNH(E)2015-37 (ex M. Krajcik collection), 29 May 1995. Vietnam: 3♂ 4♀ ERPC, Nghe An, May 2021, Dang Ngoc Van legit . 1♂ 1♀ ERPC, Vinh Phuc, Tam Dao, 26 May / 3 June 1986, Jan Strnad legit . 1♂ NHM (ex M. Krajcik collection) Vinh Phuc, 70 Km NW of Hanoi, Tam Dao , 21°27’N 105°39’E, BMNH(E) 2015-37, 900-1200 m, 11/ 17 May 1996, P. Spáčil legit GoogleMaps . 1♀ NHM (ex M. Krajcik collection) Vinh Phuc, Tonkin, Tam Dao , BMNH(E) 2015-37, 900-1200 m, 12/ 24 May 1989, Pacholatko legit .

Paratrichius papilionaceus Ma, 1990 type series. HT ♂ IZAS, China: Hainan, Jianfeng (Jianfèng Ling): 18°43’16»N, 108°52’45»E), 900 m, 27 Apr 1982, (IOZ(E)109606), Gu Maobin legit View in CoL .

Other studied material previously attributed to P. papilionaceus View in CoL : 1♂ 1♀ IZAS, China: Hainan, Mt. Diaoluoshan, Lingshui , 6/ 7 May 2011, IOZ(E)1945054-55, Lin Wenxin legit . 1♂, ERPC, China: Hainan, Mt. Wuzhishan, Diyfeng , 9/ 11 Jun 2010, ex IOZ(E)1945742, Zhou Wenyi legit .

Diagnosis. P. marmoreus and P. papilionaceus belong to a conspicuous but rarely collected species of notable size.

The Hainan species was described by Ma (1990) as Par- atrichius papilionaceus , based on a single holotype male. Subsequently two males and one female were collected (see list above) allowing a more accurate study of the tax- on. Comparing these types and specimens with Paratrichi- us marmoreus (Moser, 1902) – see list above – we found that the parameres are of identical shape, thus P. papilion- aceus Ma, 1990 must be considered a new junior synonym of Paratrichius marmoreus (Moser, 1902) (n. syn.), but it is remarkable that there are a few differences, mainly in the colour of the integument between the Vietnamese and Hainan’s specimens:

- while the Vietnamese males exhibit a fulvous clypeus, sometimes this colour reduced to the anterior part, the males from Hainan have a completely black clypeus ( Figs 2E View Fig and 3A View Fig )

- similarly, the males inhabiting Vietnam have a long narrow longitudinal fulvous spot in the posterior quarter of the fourth interstriae of the elytron and more-or-less conspicuous fulvous integument under the anterior chalky spots, while the males from Hainan have completely black elytra ( Figs 2A View Fig and 3A View Fig ).

- the females are completely black but have different

shaped chalky spots in the anterior third of the elytron

( Figs 2H View Fig and 3D View Fig ). The females inhabiting the continent

show a constant chalky pattern on the elytron, but it

may be yellowish or whitish.

The above reported morphological/chromatic differences among the insular (Hainan) and continental (N Vietnam) populations of Paratrichius marmoreus suggest that their level of genetic differentiation (if any) should be estimated by molecular methods as soon as possible.

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

Paratrichius

Loc

Paratrichius marmoreus (Moser, 1902)

Ricchiardi, Enrico, Lu, Yuanyuan, Li, Sha & Ming, Bai 2022
2022
Loc

Paratrichius papilionaceus

Ma 1990
1990
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