Baris pilosa Roelofs

Prena, Jens, Yang, Jiani, Ren, Li, Wang, Zhiliang, Liu, Ning & Zhang, Runzhi, 2014, Nomenclatural changes, new country records and range extensions of Baridinae (Coleoptera, Curculionidae) from China, Zootaxa 3841 (3), pp. 339-363 : 344-345

Baris pilosa Roelofs

( Figs. 4 , 19 )

Baris pilosa Roelofs 1875: 182 .

Two syntypes from Japan without precise locality ( BMNH, RBINS); not examined.

Baris suvorovi Reitter 1910: 201 .

Two syntypes from Transbaikal ( HNHM); examined. Transferred with doubt to Pharcidobaris by Zherikhin (1997). New synonymy.

Baris pygidialis Voss 1937: 271 (not Hustache 1951).

Holotype, sex not determined, Yunling Mountains, Sichuan ( SFFM); examined. New synonymy.

Baris blennus Marshall 1948: 458 .

Sixteen syntypes from Kambaiti, Myanmar ( BMNH, NHRS); six examined. New synonymy.

Baris piliventris Zaslavskij 1956: 366 .

Holotype female, Kamen'-Rybolov, Khanka Lake, Primorsky Kraj, Russia ( ZIN); examined. Transferred to Pharcidobaris by Legalov (2010). New synonymy.

Diagnosis. Baris pilosa has a sexually dimorphic pygidium, a coarsely punctate pronotum and widely spaced squamiform setae on odd-numbered interstriae. Specimens with reduced vestiture, known under the names B. menthae in Japan and B. shaowuensis in China, are maintained here provisionally as distinct; the former with considerable doubt.

Notes. The species is widespread in E Asia. The nominal population from Japan appears indistinguishable from specimens of the Asian mainland except for subtle differences in vestiture. Reitter (1910), Voss (1937), Marshall (1948) and Zaslavskij (1956) named the species without adequate comparison to material from other regions. The name B. piliventris has been applied to small, slightly reddish individuals sporadically found in the northern range.

The generic placement of the Baris pilosa complex is unresolved. We do not recognize any closely related species in the Holarctic region, even though many occur there on the same plant family. Baris pilosa ranges into the Oriental region and more research is needed to determine whether its sister group occurs in the Palaeotropics or in the New World. The tentative transfer of Baris suvorovi to Pharcidobaris by Zherikhin (1997) is unconvincing and we maintain its senior synonym provisionally in Baris sensu lato. Species of Pharcidobaris are associated with Cucurbitaceae (J. Prena & Wang Z., unpubl. data) and appear more closely related to the “ Athesapeuta ” sculpticollis Voss complex than to “ Baris ” pilosa .

Distribution. The species is known from China (Beijing, Chongqing, Fujian, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Liaoning, Shandong, Shanxi, Sichuan, Tibet, Yunnan), Japan, Myanmar, North Korea, Russia, South Korea and Vietnam ( Fig. 19 ).

Biology. Baris pilosa and the nearly glabrous B. menthae are stem-borers of Mentha arvensis (Lamiaceae) in Japan ( Kôno 1937). Adult weevils have been collected also from Perilla frutescens (Lamiaceae) in Japan and South Korea ( Morimoto 1984; Hong et al. 2000, 2011). Host associations in China are unknown.

Material examined. CHINA. Beijing: Badaling, 20.vi.1963 ( IZCAS 1). Chongqing: Jinfo Mountain, Nanchuan, 13.vi.2010 ( IZCAS 1). Fujian: Chong'an Xincun, 25.vii.1945, 14.v.1960, 19.v.1960, 25.v.1960, 30.vi.1960, 18.vii.1960, 10.viii.1960 ( IZCAS 7). Guizhou: Leigong Mountain, Fangxiang Village, Leishan, 6.iv.2005 ( IZCAS 1). Hebei: Wulingshan, Xinglong, 5.vii.1963 ( IZCAS 3). Heilongjiang: Mao'er Mountain, 8.vi.1941 ( IZCAS 1); Yalujiang, 13.vii.1941 ( IZCAS 1) ; Yuquan, Acheng, 15.vi.1941 ( IZCAS 1). Henan: Little Wutai Mountain, Jingangtai, Shang City, 22.vii.2005 ( IZCAS 1) ; Little Wutai Mountain, Wangwushan, Jiyuan, 29.vii.2003 ( IZCAS 1) ; Sanhuang Stockaded Village, Dengfeng, 17.vii.2002 ( IZCAS 1) ; Shaolin Temple, Gao Village, 16.vii.2002 ( IZCAS 1) ; Wulin Mountain, Shaolin Temple, Dengfeng, 17.vii.2002 ( IZCAS 1). Hubei: Longmen River, Xing Mountain, 11.v.1994 ( IZCAS 1). Jiangxi: Little Wutai Mountain ( IZCAS 2). Liaoning: Anshan, Qiantou, 9.vi.1963 ( IZCAS 1) ; Changtu, Qiantou, 14.-15.vi.1963 ( IZCAS 4). Shandong: Yao Village, Taian, 7.vi.1979 ( IZCAS 1). Shanxi: Little Wutai Mountain, Linxian, 22.vii.2003 ( IZCAS 1). Sichuan: Yonghong Village, Mabian, 22.vii.2004 ( IZCAS 1) ; Yunling Mountains ( SFFM 1). Tibet: Mêdog, 22.viii.2006 ( IZCAS 1). Yunnan: Mao'er Mountain, Meng Hun, Xishuangbanna, 18.v.1958 ( IZCAS 1) ; Mao'er Mountain, Shibali, Lishadi Town, 8.–10.viii.2005 ( IZCAS 2) ; Tacheng, Diqing, 7.viii.2008 ( HBU 1). JAPAN. Ranzan Town, Sugaya, Saitama Pref., 10.vi.1997 ( JPPC 1). MYANMAR. Kachin: Kan Pai Ti, 15.–24.v.1934 ( BMNH 6). RUSSIA. Primorsky Kraj: Kamen'-Rybolov, 28.vi.1908 ( ZIN 1) ; Tumen River, 30.vii.1913 ( ZIN 1) ; Vladivostok ( SNSD 1). VIETNAM. Hoa Binh: Dabac, 18.x.1990 ( ZIN 1).

Figures

FIGURES 1 – 4. Dorsal and lateral habitus images. 1, Acythogaster babaulti, 4.1 mm, Medog (Tibet). 2, Athesapeuta albisquama, 3.9 mm, Beijing. 3, Baris artemisiae, 3.6 mm, Beijing. 4, Baris pilosa, 3.8 mm, Yalujiang (Heilongjiang).

FIGURES 19 – 20. Map of mainland China and surrounding countries showing distribution of Baris pilosa, Ulobaris loricata, Cosmobaris scolopacea and Pteridobaris maritima.