Platynectes dissimilis ( Sharp, 1873 )

Platynectes dissimilis ( Sharp, 1873) View in CoL View at ENA

( Figs 2C–D View FIGURE 2 , 3A View FIGURE 3 , 6E–I View FIGURE 6 , 8B–C View FIGURE 8 , 10B View FIGURE 10 )

Agabus dissimilis Sharp, 1873: 50 (orig. descr.).

Platynectes dissimilis ( Sharp, 1873) View in CoL : Sharp 1882: 543 (n. comb.), Régimbart 1899: 288 (descr.), Guéorguiev 1972: 46 (descr.), Brancucci 1979: 202 (fauna), Satô 1982: 2 ( syntype illustrated), Nilsson 1995: 56 (fauna), Šťastný 2003: 231 (descr.). Platynectes dissimilis dissimilis ( Sharp, 1873) View in CoL : Nilsson 1998: 111 (descr.).

Type locality. “ Japan ” (possibly mislabelled as never confirmed to occur in Japan).

Type material. Syntype, deposited in BMNH.

Material examined. CHINA: Guangdong: 4 ♂, 1 ♀, Zhaoqing, Dinghu , 19.vi.1958, C. Li leg. ( SYSU) ; 7 ♂, 12 ♀, Dinghushan Mt. , 23.vii.1964, T. Peng leg. ( SYSU) ; 4 ♂, 4 ♀, Danxiashan Mt. , 23.v.2008, F. Jia leg. ( SYSU) ; 3 ♂, 4 ♀, Danxiashan Mt., Zhanglaofeng , 10.vi.2011, F. Jia leg. ( SYSU) ; 1 ♀, Danxiashan Mt., Yangyuanshan , 10.vi.2011, F. Jia leg. ( SYSU) ; 7 ♂, 11 ♀, Danxiashan Mt., Jinshi , puddle under rock wall, 11.vi.2011, F. Jia leg. ( SYSU) ; 1 ♂, 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Feishuitan , 23.1754N, 112.5415E, 100 m, 2.iv.2021, Z. Jiang leg. ( SYSU) GoogleMaps ; 4 ♂, 5 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Feiqianqiao , 23.1748N, 112.5385E, 195 m, 3.iv.2021, Z. Jiang leg. ( SYSU) GoogleMaps ; 2 ♂, 2 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Dizhi management station, 23.1609N, 112.5323E, 90 m, 11.vii.2021, Z. Jiang, Z. Mai & Z. Liang leg. ( SYSU) GoogleMaps ; 2 ♂, 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Qingyunsi management station, 23.1736N, 112.5361E, 250 m, 12.vii.2021, Z. Jiang, Z. Mai & Z. Liang leg. ( SYSU) GoogleMaps ; 1 ♂, Zhaoqing, Dinghu distr., Dinghushan Mt. , Qingyunsi management station, 23.1732N, 112.5354E, 260 m, 17.x.2021, Z. Jiang, Z. Mai & W. Xie leg. ( SYSU) GoogleMaps ; 3 ♂, 2 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Feiqianqiao-Qingyunsi , 23.1748N, 112.5385E, 195 m, 15.iii.2022, Z. Jiang & Z. Mai leg. ( SYSU) GoogleMaps ; 2 ♂, Zhaoqing, Dinghu distr., Dinghushan Mt. , Qingyunsi management station, 23.1732N, 112.5354E, 260 m, 15.iii.2022, Z. Jiang & Z. Mai leg. ( SYSU) GoogleMaps ; 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt. , Tingquan Stone Carving, 23.1730N, 112.5434E, 60 m, 15.iii.2022, Z. Jiang & Z. Mai leg. ( SYSU) GoogleMaps ; Guangxi: 3 ♂, 5 ♀, Guilin, Longsheng County, Huaping Nature Reserve , 25.6239N, 109.9196E, 820 m, 22.viii.2020, day, Z. Jiang leg. ( SYSU) GoogleMaps ; 1 ♂, Guilin, Ziyuan County, Maoershan Mt. , Huilong Tmple , 25.9125N, 110.4656E, 1560 m, 30.viii.2020, day, Z. Jiang leg. ( SYSU) GoogleMaps ; 7 ♂, 3 ♀, Guilin, Xingan County, Maoershan Mt. , Huilong Tmple , 25°54′27″N, 110°28′3″E, 1070 m, 2.ix.2020, Z. Yang leg. ( SYSU) GoogleMaps ; Hunan: 3 ♂, 1 ♀, Yongzhou, Jiangyong County, Dupangling , Shangmuyuan , 25.3850N, 111.2932E, 320 m, 2.ix.2020, night & light trap, Z. Jiang leg. ( SYSU) GoogleMaps ; 3 ♂, Yiyang, Anhua County, Meicheng Town , Yunhe Village , 28.ii.2022, H. Mao leg. ( SYSU) ; Jiangxi: 3 ♂, 3 ♀, Sanqingshan Mt. , 15.viii.2006, F. Jia & H. Chen leg. ( SYSU) ; 4 ♂, 8 ♀, Jinggangshan Mt., Dabali , 28. iv.2011, S. Zhao leg. ( SYSU) ; Shaanxi: 1 ♂, 1 ♀, Huashan Mt. , 24.viii.1984, Z. Huang leg. ( SYSU) ; Zhejiang: 1 ♂, Quzhou, Qujiang distr., Caojiang Line (near Mingguo Temple ), 29.1725N, 118.9054E, 240 m, 14.iii.2020, Z. Jiang leg. ( SYSU) GoogleMaps ; 7 ♂, 4 ♀, Quzhou, Jiangshan, Jinjia , 28.8734N, 118.6985E, 180 m, 20.iv.2020, Z. Jiang leg. ( SYSU) GoogleMaps ; 5 ♂, 6 ♀, Quzhou, Qujiang distr., Chacao , 29.2158N, 118.8261E, 455 m, 29.iv.2020, Z. Jiang leg. ( SYSU) GoogleMaps ; 3 ♂, 10 ♀, Quzhou, Qujiang distr., Liuchun Lake , Taoyuanjian , 28.7425N, 119.0389E, 780 m, 3.v.2020, Z. Jiang & X. Ye leg. ( SYSU) GoogleMaps ; 4 ♂, 4 ♀, Quzhou, Changshan County, Tianpu Village , 29.0727N, 118.6930E, 760 m, 24.vi.2020, Z. Jiang & X. Ye leg. ( SYSU) GoogleMaps ; 1 ♂, 1 ♀, Quzhou, Kaihua County, Gutianshan Nature Reserve , 29.2499N, 118.1402E, 695 m, 20.ii.2021, Z. Jiang & X. Ye leg. ( SYSU) GoogleMaps ; 2 ♂, 1 ♀, Quzhou, Qujiang distr., Yaowangshan Mt. , Shennong Waterfall , 28.7632N, 118.9731E, 340 m, 24.viii.2021, Z. Jiang & X. Ye leg. ( SYSU) GoogleMaps .

Notes. Habitus and male genitalia are given in Figs 2C–D View FIGURE 2 , 3A View FIGURE 3 and 6E–I View FIGURE 6 .

Collection details. In Zhejiang, the specimens were collected together with P. gemellatus among decaying leaves in a stream within the Gutianshan Nature Reserve ( Fig. 8B View FIGURE 8 ) and in a puddle at the bottom of a rock wall covered with a film of seeping water, near Tianpu Village ( Fig. 8C View FIGURE 8 ).

Distribution. Central and southeastern China ( Anhui, Fujian, Guangdong, Guizhou, Guangxi, Hunan, Jiangxi, Shaanxi, Shanxi, Zhejiang) ( Fig. 10B View FIGURE 10 ). First record from Guangxi Zhuang Autonomous Region.

Notes. Platynectes dissimilis exhibits highly variable elytral pattern. Examined specimens of P. dissimilis from Zhejiang and Sanqingshan Mt. ( Jiangxi) had the elytral yellow vittae absent from the basal third of the elytra ( Fig. 3A View FIGURE 3 ), two specimens from Shaanxi and a single specimen from Anhua County ( Hunan) had the elytral yellow vittae indistinct only basally ( Fig. 2D View FIGURE 2 ), whereas other specimens examined from south China were fully coloured ( Fig. 2C View FIGURE 2 ). Since specimens we checked from southern areas ( Guangdong, Guangxi and south Hunan) are more fully coloured, this variation might be related to temperature .