Coenagrion johanssoni ( Wallengren, 1894 )

Yu, Xin & Bu, Wenjun, 2011, Chinese damselflies of the genus Coenagrion (Zygoptera: Coenagrionidae), Zootaxa 2808, pp. 31-40 : 37

Coenagrion johanssoni ( Wallengren, 1894)

Agrion johanssoni Wallengren, 1894: 267 .

Agrion concinnum Belyshev, 1963: 3 , fig. 9(c).

Coenagrion concinnum: Wallengren, 1894: 267 ; Haritonov, 1986: 151 –153, figs. 68(5), 69(3), 70(7–8, 21–22); Yang, 1998: 60. Coenagrion convalescens: Needham, 1930: 267 ; Sui & Sun, 1986: 255 –256, fig. 169. Coenagrion johanssoni: Longfield, 1954:145 ; Askew, 2004: 77 –79, figs. 80, 92, 117–118. Coenagrion bifurcatum Zhu and Ou-yan, 2000: 365–368, figs 1–10. Syn. nov.

Material. 1 ɗ, Heilongjiang, Sunwu, Yaotun, 10-VII-1971, Xuezhong Zang leg., IOZ(E)617246 ( IZAS); 2 ɗ, 1 Ψ, Heilongjiang, Mudanjiang, 27-VII-2007, Haomiao Zhang leg., ( NKUM); 1 ɗ, 1 Ψ, Heilongjiang, Jingbo lake, 15- VII-1999 [paratypes of C. bifurcatum ] ( NKUM); 3 ɗ, Sweden, Ore, Nãset, 10-VII-2003, T. Kronestedt leg. ( NKUM).

Remarks. After comparing Heilongjiang specimens with those from Sweden, we found no significant differences in body markings, genital ligulae, and caudal appendages ( Fig. 2 ), except for a slightly smaller body size for European specimens. Examination of paratypes of C. bifurcatum showed them to be identical to C. johanssoni . Consequently we consider C. bifurcatum a junior synonym of C. johanssoni .

Distribution. In China this species appears in Heilongjiang. It also occurs in Belarus, Estonia, Finland, South Korea, Lithuania, Latvia, Mongolia, Norway, Korea, Russia and Sweden.

Figures

FIGURES 1 – 11. SEM photos for male caudal appendages: (1) C. aculeatum; (2) C. bifurcatum; (3) C. ecornutum; (4) C. glaciale; (5) C. hastulatum; (6) C. holdereri; (7) C. hylas; (8) C. johanssoni; (9) C. lanceolatum; (10) C. lunulatum; (11) C. tengchongensis.