Planaeschna viridis Karube, 2004

Kompier, Tom, Karube, Haruki, Futahashi, Ryo & Phan, Quoc Toan, 2021, The genus Planaeschna McLachlan, 1895 and its subgroupings in Vietnam, with descriptions of three new species (Odonata: Aeshnidae), Zootaxa 5027 (1), pp. 1-35 : 13

4. Planaeschna viridis Karube, 2004

( Fig. 6 )

Planaeschna viridis: Karube (2004) pp. 5–8, Figs 10–20 (description of male and female).

Material examined. 1 ♂, Bach Ma NP, Thua Thien-Hue Prov., Vietnam, 7-VIII-2016, TK leg .

Notes. Karube (2004) described P. viridis from Bach Ma NP. The species takes its name from the green maculation on its thorax and abdomen. This coloration is remarkable because, as Karube (2004: p. 8) states, “usually species have a greenish mark on the pterothorax but it is tinted with yellow.” Likewise, the lateral markings on S1–3 are yellowish in most species, not green. The description also notes the “parrot green” colour of the face. The male specimen collected on 7 August 2016 did not have a green facial pattern, although in all other aspects it fitted the description ( Fig. 6A ). For differences with similar P. samurai and P. tomokunii see under those species.

Ecology. Based on earlier records the flight period extends from at least May to September. The examined specimen was caught at 1000 m asl., hawking over a stream at dusk, rapidly flying at 4–5 m height.

Distribution. Endemic to Vietnam (Thua Thien-Hue Prov.)

Figures

FIGURE 6. Planaeschna viridis male, Bach Ma NP. Thus Thien-Hue Prov., 7-VIII-2016. (A) lateral habitus alive, including face, [B–C] anal appendages in lateral (B) and dorsal (C) view, (D) dorsal pattern of S2.

FIGURE 10. Planaeschna crux sp. nov. alive in hand [A–C] lateral habitus, [D–F] face. (A, D) male, Pia Oac NP, Cao Bang Prov., 3-X-2015, (B, E), immature male, Tu Le, Yen Bai Prov., 30-VI-2015, (C) female, Tu Le, Yen Bai Prov., 15-V-2015, (F) female, Pia Oac NP, Cao Bang Prov., 3-X-2015.

FIGURE 11. Comparison of details of Planaeschna crux sp. nov. and P. cucphuongensis [A–B, H–I] dorsal pattern of S2, [C, J] dorsal view of thorax showing antealar sinus, [D, F] male anal appendages in dorsal view, [E, G] male anal appendages in lateral view. (A, C–E) holotype P. crux, (B) paratype female P. crux used for description, (F–H, J) male P. cucphuongensis, Xuan Son NP, Phu Tho Prov., 22-X-2016, (I) female P. cucphuongensis, Cuc Phuong NP, Ninh Binh Prov., 16-VI-2015.

FIGURE 12. Planaeschna cucphuongensis alive in hand [A–B] lateral habitus, [C–D] face, and detail of P. chiengmaiensis [E] dorsal pattern pterothorax and S1–2. (A, C) male, Xuan Son NP, Phu Tho Prov., 22-X-2016, (B, D) female, Cuc Phuong NP, Ninh Binh Prov., 16-VI-2015, (E) male, Chiang Khong, Chiang Rai Prov., Thailand, 30-IV-2001, courtesy of Mr. A. Sugitani.

FIGURE 13. Planaeschna tamdaoensis [A, D] face alive, [B–C, E] lateral habitus alive, [F–H] scans of dorsal habitus. (A-B) male, Pia Oac NP, Cao Bang Prov., 4-X-2014, (C, G) immature male, same location, 31-V-2015, (D) female, Mau Son, Lang Son Prov., 7-VI-2014, (E, H) female, Pia Oac NP, Cao Bang Prov., 12-IX-2015, (F) male, same location, 27-VI-2015.

FIGURE 14. Apical segment of vesica spermalis in ventral view [A] fresh specimen, [B–D] after Karube (2002a), [E–H] after dry preservation. (A) P. tamdaoensis, Mau Son, Lang Son Prov., 7-VI-2014, (B) P. gressitti (Karube 2002a: p. 2, Fig. 7), (C) P. suichangensis (Karube 2002a: p. 4, Fig. 17); (D) P. tamdaoensis (Karube 2002a: p2, Fig. 8), (E) P. tamdaoensis Tam Dao, Vinh Phuc Prov., 27-VIII-2016, (F) idem different specimen, (G) P. tamdaoensis Pia Oac NP, Cao Bang Prov., 3-X-2015, (H) idem, 4-X-2014.

FIGURE 15. Anal appendages of male Planaeschna in lateral view (left) and dorsal view (right). P. suichangensis: (A) Wilson (2005: p. 127, Fig. 11c–d), (B) Zhang (2019: p. 198), (C) Karube (2002a: p. 4, Fig. 14–15), P. tamdaoensis: (D) Tam Dao NP, Vinh Phuc Prov., 27-VIII-2016, (E) Mau Son, Lang Son Prov., 16-VIII-2014, (H) Mau Son, Lang Son Prov., 7-VI-2014, P. gressitti: (F) Karube (2002a: p. 2, Fig. 4–5), (G) Zhang (2019: p. 198),

FIGURE 16. Planaeschna ishigakiana guentherpetersi [A, C] face alive, [B, D] lateral habitus alive, [E–F] scan of dorsal habitus, [G–H] anal appendages in lateral (G) and dorsal (H) view. Note that epiproct actually reaches halfway length of cerci. (A–B, E, G–H) male, Xuan Son NP, Phu Tho Prov., 26-X-2014, (C–D, F) female, same location, 23-XI-2014.

FIGURE 17. Planaeschna ishigakiana spp. anal appendages. [A–C] after Asahina (1988), lateral view (top) and dorsal view (bottom), [D] Xuan Son NP, Phu Tho Prov., 26-X-2014 (same as in Fig. 7). (A) P. i. ishigakiana, Ishigakijima (1988: p. 28, Figs 2–3), (B) P. i. nagaminei, Amami Oshima (1988: p. 29, Figs 13–14), (C) P. i. ishigakiana, Iriomote Island (1988: p. 28, Figs 4–5), (D) P. i. guentherpetersi stat. nov.

FIGURE 18. Planaeschna sp. 2. [A–B] female lateral habitus including face, alive, [C–D] dorsolateral habitus. (A) Huu Lien NR, Lang Son Prov., 1-XII-2013, (B–C) Xuan Son NP, Phu Tho Prov., 20-X-2013, (D) probable male, Huu Lien NR, Lang Son Prov., 11-X-2015.

FIGURE 19. Planaeschna sp. 1, all female [A–B] lateral habitus including face, alive, [C–D] scans of dorsal habitus. (A, D) Xuan Son NP, Phu Tho Prov., 26-X-2014, (B) same location, 29-XI-2014, (C) same location, 22-X-2016.

FIGURE 20. Distribution by province of Planaeschna species recordedfrom Vietnam.(A) tomokunii-groupspecies, ishigakiana- group species, and P. owadai, (B) tamdaoensis-group species, P. bachmaensis and P. sp. 1.