Limnobaris tibialis (Voss, 1953) Voss, 1953

Prena, Jens, Korotyaev, Boris, Wang, Zhiliang, Ren, Li, Liu, Ning & Zhang, Runzhi, 2014, A taxonomic revision of Limnobaris Bedel in the strict sense (Coleoptera, Curculionidae, Baridinae), with particular emphasis on the species found in China, ZooKeys 416, pp. 41-66 : 52-53

Taxon classification Animalia Coleoptera Curculionidae

Limnobaris tibialis (Voss, 1953) comb. n.

Pertorcus tibialis Voss, 1953: 75. Holotype male, Kuatun [Guadun], Fujian, China (AKMB).

Pertorcus tibialis pilifer Voss, 1958: 76. Holotype male, Kuatun [Guadun], Fujian, China (AKMB). syn. n.

Diagnosis.

Limnobaris tibialis is a small species (2.1-3.1 mm) with sparse ventrolateral vestiture and erect setae on the elytron. Males have a sharply pointed, anteriorly directed process on the ventral edge of the protibia, which is located more basally than the blunt tooth of other species (Fig. 5). Limnobaris albosparsa , the only other species with a sharply pointed process, has a slightly wider penis basally, appressed rather than erect setae on the elytron and is allopatric. The number and width of white setae on the elytral interstriae vary considerably even in series taken at the same locality. Females may be confused with sympatrically occurring Limnobaris basalis , but the latter species has white setae crowded at the elytral base and is slightly less elongate. Most female Limnobaris tibialis can be distinguished by more basally inserted antennae.

Notes.

Voss (1958) distinguished a pilose “form” with slightly different protibial process. Even though the size of setae can differ noticeably between individual specimens, transitional forms occur even in the same series. Pertocus tibialis pilifer is a new junior synonym of the nominal species.

Distribution.

The species is known from Southeast China (Anhui, Fujian, Guizhou, Jiangxi, Zhejiang) (Fig. 13).

Biology.

In Northern Fujian, we found this species on several, ca. 20-30 cm tall Carex species. The larva develops in the basal, ca. 2 mm wide section of the culm. Pupation starts in July and newly eclosed adults appear in the same month.

Material examined.

CHINA. Anhui: Taipingshien, x.1932 (MCZ 30+). Fujian: Guadun, Wuyi Mts., 3.iv.1938 (PT of P. t. pilifer), 5.iv.1938 (HT + 2 PT of P. t. tibialis + 1), 8.iv.1938 (4x), 18.iv.1938 (1 PT of P. t. tibialis + 1 PT of P. t. pilifer), 20.iv.1938 (HT of P. t. pilifer), 5.v.1938 (2x), 26.v.1938 (PT of P. t. pilifer) (AKMB 15); ditto, 3.iii.1938 10.iv.1938 (PT of P. t. tibialis), 10.iv.1938 (PT of P. t. tibialis) (ZIUH 2); ditto, 7.iv.1938, 18.iv.1938 (2x) (CWOB 3); Changting, Hotien, 15.iv.1941 (BPBM 1), Changteh, Talungchan, 15.iv.1941 (BPBM 1); Daanyuan, Wuyi Mts., 24.-27.iv.2013 (BMNH 4, IZCAS 21, JPPC 12, ZIN 4), 16.-19.vii.2013 [larvae, pupae] (JPPC); 将乐龙栖山余家坪 [Yujiaping, Longxi Mts., Jiangle], 11.iv.1991 (IZCAS 2); 将乐龙栖山里山 [Lishan, Longxi Mts., Jiangle], 22. iv.1991 (IZCAS 1); 建阳黄坑桂林 [Guilin, Huangkeng, Jianyang], 11.iv.1960 (IZCAS 1); 建阳 [Jianyang], 10.v.1965 (IZCAS 1); 邵武铁洋 [Tieyang, Shaowu], 9.vi.1965, 28.vi.1965 (IZCAS 2); Shaowu, Wuyi Mts., 30.iv.1943 (BPBM 1). Guizhou: 遵义市绥阳县宽阔水自然保护区香广山村 [Xiangguangshan village, Kuan Kuoshui Natural Reserve, Suiyang, Zunyi], 4.vi.2010 (IZCAS 1). Jiangxi: 九连山保护区 [Jiu Lianshan Natural Reserve], 29/30.ix.1979 (IZCAS 2). Zhejiang: 临安市西天目山禅院寺 [Chanyuan Temple, West Tianmu Mts., Lin’an], 22.viii.2009 (IZCAS 2); 景宁 [Jingning], 28.vii.2010 (ZAFU 1); 庆元百山祖 [Baishanzu, Qingyuan], 16.v.1994 (IZCAS 2).