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Tau Emerald (Hemicordulia tau)

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PhotoID: AusDr012. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

1 / 20; PhotoID: AusDr012 01/12/2006 11:55 F6.3 1/200 180mm ISO200 Canon30D -Crop -Flash MF
Belair NP, Belair, SA
PhotoID: AusDr013. Tau Emerald (Hemicordulia tau) - copula
Tau Emerald (Hemicordulia tau) ⚤

2 / 20; PhotoID: AusDr013 20/02/2024 18:23 F7.1 1/800 500mm ISO1600 CanonR7 -Crop -Flash MF
Beachside vegetation, Cheynes Beach, WA [-34.880410°; 118.407975°]
PhotoID: AusDr015. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

3 / 20; PhotoID: AusDr015 21/02/2024 06:48 F8 1/400 180mm ISO400 Canon90D -Crop -Flash MF
Roadside vegetation, Cheynes Beach, WA [-34.881489°; 118.408566°]
PhotoID: AusDr038. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

4 / 20; PhotoID: AusDr038 02/12/2008 10:10 F5.6 1/180 180mm ISO200 Canon50D -Crop -Flash MF
Wollomombi Falls, Oxley Wild Rivers NP, NSW [-30.531941°; 152.033318°]
PhotoID: AusDr039. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

5 / 20; PhotoID: AusDr039 21/02/2024 07:09 F8 1/500 180mm ISO400 Canon90D -Crop -Flash MF
Roadside vegetation, Cheynes Beach, WA [-34.881489°; 118.408566°]
PhotoID: AusDr064. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

6 / 20; PhotoID: AusDr064 15/12/2008 18:16 F5.6 1/1000 180mm ISO400 Canon50D -Crop -Flash MF
Umberumberka Reservoir, near Silverton, NSW [-31.815067°; 141.210383°]
PhotoID: AusDr113. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

7 / 20; PhotoID: AusDr113 21/02/2024 07:29 F8 1/640 180mm ISO400 Canon90D -Crop -Flash MF
Roadside vegetation, Cheynes Beach, WA [-34.881489°; 118.408566°]
PhotoID: AusDr114. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

8 / 20; PhotoID: AusDr114 03/03/2024 10:26 F7.1 1/800 363mm ISO320 CanonR7 -Crop -Flash MF
Hills Homestead walk, Flinders Ranges NP, SA [-31.544302°; 138.591435°]
PhotoID: AusDr150. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

9 / 20; PhotoID: AusDr150 01/01/2009 13:56 F5.6 1/90 180mm ISO200 Canon50D -Crop -Flash MF
Barren Grounds Nature Reserve, NSW [-34.669300°; 150.710883°]
PhotoID: AusDr151. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

10 / 20; PhotoID: AusDr151 01/01/2009 13:57 F5.6 1/125 180mm ISO400 Canon50D -Crop -Flash MF
Barren Grounds Nature Reserve, NSW [-34.669300°; 150.710883°]
PhotoID: AusDr197. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

11 / 20; PhotoID: AusDr197 28/10/2011 14:26 F8 1/320 180mm ISO400 Canon7D -Crop -Flash MF
Flat Rock Gully, Willoughby, NSW [-33.815400°; 151.208050°]
PhotoID: AusDr545. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

12 / 20; PhotoID: AusDr545 08/12/2016 08:09 F8 1/400 180mm ISO400 Canon7D2 -Crop -Flash MF
Lefroy Brook, Pemberton, WA [-34.443111°; 116.025806°]
PhotoID: AusDr546. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

13 / 20; PhotoID: AusDr546 03/03/2024 10:29 F7.1 1/800 500mm ISO250 CanonR7 -Crop -Flash MF
Hills Homestead walk, Flinders Ranges NP, SA [-31.544302°; 138.591435°]
PhotoID: AusDr547. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

14 / 20; PhotoID: AusDr547 08/12/2016 08:13 F8 1/320 180mm ISO200 Canon7D2 -Crop -Flash MF
Lefroy Brook, Pemberton, WA [-34.443111°; 116.025806°]
PhotoID: AusDr548. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

15 / 20; PhotoID: AusDr548 08/12/2016 08:25 F8 1/320 180mm ISO200 Canon7D2 -Crop -Flash MF
Lefroy Brook, Pemberton, WA [-34.443111°; 116.025806°]
PhotoID: AusDr552. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

16 / 20; PhotoID: AusDr552 08/12/2016 11:18 F8 1/400 180mm ISO200 Canon7D2 -Crop -Flash MF
Lefroy Brook, Pemberton, WA [-34.443111°; 116.025806°]
PhotoID: AusDr553. Tau Emerald (Hemicordulia tau) - male
Tau Emerald (Hemicordulia tau) ♂

17 / 20; PhotoID: AusDr553 08/12/2016 11:20 F8 1/640 180mm ISO200 Canon7D2 -Crop -Flash MF
Lefroy Brook, Pemberton, WA [-34.443111°; 116.025806°]
PhotoID: AusDr716. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

18 / 20; PhotoID: AusDr716 29/11/2018 14:27 F8 1/800 180mm ISO400 Canon7D2 -Crop -Flash MF
Big Waterhouse Lake, Waterhouse Conservation Area, TAS [-40.891847°; 147.616200°]
PhotoID: AusDr717. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

19 / 20; PhotoID: AusDr717 29/11/2018 14:28 F8 1/1250 180mm ISO400 Canon7D2 -Crop -Flash MF
Big Waterhouse Lake, Waterhouse Conservation Area, TAS [-40.891847°; 147.616200°]
PhotoID: AusDr718. Tau Emerald (Hemicordulia tau) - female
Tau Emerald (Hemicordulia tau) ♀

20 / 20; PhotoID: AusDr718 29/11/2018 14:28 F8 1/800 180mm ISO200 Canon7D2 -Crop -Flash MF
Big Waterhouse Lake, Waterhouse Conservation Area, TAS [-40.891847°; 147.616200°]

Tau Emerald (Hemicordulia tau)

Australian distribution of Hemicordulia tau

Inhabits riverine pools, lakes, ponds (including temporary ponds), swamps; occasionally streams and rivers

© 2011 DECCW, NSW; 2021 Ian Endersby and DragonflyPix.com

  • Corduliidae: Key couplet 1 of 11

  • couplet drawing
  • ● Hypertriangles generally free
b ↑

  • Corduliidae: Key couplet 2 of 11

  • couplet drawingcouplet drawing
    couplet drawing
  • ● Three crossveins between sectors of arculus basal to fork of Rs in hindwing
    ● Bridge crossvein at subnodus
    ● Ovipositor short, less than half length of tergum 9

    ⇒ genus: Hemicordulia and Procordulia
b ↑

  • Corduliidae: Key couplet 3 of 11

  • couplet drawing
  • ● Top of frons yellow with dark T-mark, or black with pair of yellow spots
b ↑

  • Corduliidae: Key couplet 8 of 11

  • couplet drawing
  • ● Abdominal tergum 7 extensively black above, yellowish at sides

    ⇒ species: Tau Emerald (Hemicordulia tau)
a ↑