DragonflyPix

Tasmanian Swamp Tigertail (Synthemis tasmanica)

The Tasmanian Swamp Tigertail (Synthemis tasmanica) is a dragonfly species of the family Synthemistidae, which contains 26 species in Australia.

The identification key to the family Synthemistidae consists of 26 couplets, 4 of which are pertinent to Synthemis tasmanica. Click on the numbers on the right to display the corresponding couplets. Or click on the ALLin1 button to see all the relevant couplets together in a single, scrollable window.

#FamilySpeciesCouplet No.
 SynthemistidaeTasmanian Swamp Tigertail
(Synthemis tasmanica)
  • Synthemistidae: Key couplet 1 of 26

  • ○ Dark markings, if present, confined to basal parts of wings
  • b ↑
  • Synthemistidae: Key couplet 2 of 26

  • couplet drawing
  • ● Generally two to five crossveins in median space of all wings
  • b ↑
  • Synthemistidae: Key couplet 9 of 26

  • couplet drawing
    couplet drawingcouplet drawing
  • ● No accessory thick antenodal in forewing, only the two primaries present
    ● Male tergum 10 with posteriorly directed pale mid-dorsal cone
    ● Ovipositor reaching beyond segment 9

    ⇒ genus: Synthemis
  • a ↑
  • Synthemistidae: Key couplet 10 of 26

  • couplet drawingcouplet drawing
  • ● At most, small pale line on supplementary transverse carina on each side of male abdominal tergum 2, larger oval mark in female

    ⇒ species: Tasmanian Swamp Tigertail (Synthemis tasmanica)
  • b ↑
1  
  • Synthemistidae: Key couplet 1 of 26

  • ○ Wings with dark brown spots at nodus

    ⇒ species: Tasmanian Spotwing (Synthemiopsis gomphomacromioides)
a ↑
b ↓
  • ○ Dark markings, if present, confined to basal parts of wings

2  
  • Synthemistidae: Key couplet 2 of 26

  • couplet drawing
  • ● Generally one crossvein in median space, sometimes two in one or two wings
a ↑
b ↓
  • couplet drawing
  • ● Generally two to five crossveins in median space of all wings

3  
  • Synthemistidae: Key couplet 9 of 26

  • couplet drawing
    couplet drawingcouplet drawing
  • ● No accessory thick antenodal in forewing, only the two primaries present
    ● Male tergum 10 with posteriorly directed pale mid-dorsal cone
    ● Ovipositor reaching beyond segment 9

    ⇒ genus: Synthemis
a ↑
b ↓
  • couplet drawing
  • ● An accessory thick antenodal in forewing in addition to the two primaries; this and the two previous alternating with thin antenodals
    ○ Male tergum 10 without pale dorsal cone
    ○ Ovipositor, if developed, not reaching beyond segment 9

4  
  • Synthemistidae: Key couplet 10 of 26

  • couplet drawingcouplet drawing
  • ● Large pale spot on supplementary transverse carina on each side of abdominal tergum 2, smaller in male than in female

    ⇒ species: Swamp Tigertail (Synthemis eustalacta)
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● At most, small pale line on supplementary transverse carina on each side of male abdominal tergum 2, larger oval mark in female

    ⇒ species: Tasmanian Swamp Tigertail (Synthemis tasmanica)

Australian distribution