DragonflyPix

Lilac Hunter (Zephyrogomphus lateralis)

The Lilac Hunter (Zephyrogomphus lateralis) is a dragonfly species of the family Gomphidae, which contains 35 species in Australia.

The identification key to the family Gomphidae consists of 47 couplets, 7 of which are pertinent to Zephyrogomphus lateralis. 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.
 GomphidaeLilac Hunter
(Zephyrogomphus lateralis)
  • Gomphidae: Key couplet 1 of 47

  • couplet drawingcouplet drawing
  • ● Generally no incomplete antenodal crossvein proximal to Ax1 in any wing
    ● End of abdomen not elongate, mid-dorsal length of abdominal tergum 9 less than 2.3 mm in male, 2.1 mm in female
  • b ↑
  • Gomphidae: Key couplet 10 of 47

  • couplet drawingcouplet drawing
  • ● Superior anal appendages parallel or divergent, not converging at tips, each bearing a long, curved ventrobasal branch
  • a ↑
  • Gomphidae: Key couplet 19 of 47

  • couplet drawing
    couplet drawing
    couplet drawing
  • ● Anterior of abdominal segments 3 and 4 with mid-dorsal yellow band, sometimes narrow, or entirely yellow
  • b ↑
  • Gomphidae: Key couplet 27 of 47

  • ○ Abdominal terga 9-10 usually marked with black or chocolate brown
    ○ If yellow or reddish, then tergum 8 substantially black
  • b ↑
  • Gomphidae: Key couplet 32 of 47

  • couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawing
  • ● Metanepisternum substantially pale
    ● Pterostigma yellow, brown or black, its length more than 3.3 times its maximum width
  • b ↑
  • Gomphidae: Key couplet 33 of 47

  • couplet drawingcouplet drawing
  • ● Brown and cream-coloured, with lilac colouration on side of synthorax, or brown and greenish yellow
    ● Lower half of metepimeron posteriorly margined with brown

    ⇒ genus: Zephyrogomphus
  • a ↑
  • Gomphidae: Key couplet 34 of 47

  • couplet drawing
  • ● Brown and cream coloured with lilac colouration on side of synthorax
    ○ From south-western Australia

    ⇒ species: Lilac Hunter (Zephyrogomphus lateralis)
  • a ↑
1  
  • Gomphidae: Key couplet 1 of 47

  • couplet drawingcouplet drawing
  • ● Incomplete (subcostal) antenodal crossvein proximal to Ax1 usually present in forewings, sometimes lacking in hindwings
    ● End of abdomen elongate, mid-dorsal length of abdominal tergum 9 more than 2.4 mm in male, 2.3 mm in female

    ⇒ genus: Antipodogomphus
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Generally no incomplete antenodal crossvein proximal to Ax1 in any wing
    ● End of abdomen not elongate, mid-dorsal length of abdominal tergum 9 less than 2.3 mm in male, 2.1 mm in female

2 Male only
  • Gomphidae: Key couplet 10 of 47

  • couplet drawingcouplet drawing
  • ● Superior anal appendages parallel or divergent, not converging at tips, each bearing a long, curved ventrobasal branch
a ↑
b ↓
  • couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
  • ● Superior anal appendages converging at tips, bearing basal, ventral to lateral spine or toothed spur

3 Female only
  • Gomphidae: Key couplet 19 of 47

  • couplet drawing
  • ● Anterior part of abdominal segments 3 and 4, in front of supplementary transverse carina, with broad, mid-dorsal black patch or band
a ↑
b ↓
  • couplet drawing
    couplet drawing
    couplet drawing
  • ● Anterior of abdominal segments 3 and 4 with mid-dorsal yellow band, sometimes narrow, or entirely yellow

4  
  • Gomphidae: Key couplet 27 of 47

  • ○ Abdominal terga 9-10 yellow or pale reddish brown
    ○ Tergum 8 similar or with dark reddish brown to black distal half
a ↑
b ↓
  • ○ Abdominal terga 9-10 usually marked with black or chocolate brown
    ○ If yellow or reddish, then tergum 8 substantially black

5  
  • Gomphidae: Key couplet 32 of 47

  • couplet drawingcouplet drawing
  • ● Metanepisternum black, with small yellow dorsal spot
    ● Pterostigma black, swollen, its length less than 3.3 times its maximum width

    ⇒ species: Twinspot Hunter (Austroepigomphus praeruptus)
a ↑
b ↓
  • couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawing
  • ● Metanepisternum substantially pale
    ● Pterostigma yellow, brown or black, its length more than 3.3 times its maximum width

6  
  • Gomphidae: Key couplet 33 of 47

  • couplet drawingcouplet drawing
  • ● Brown and cream-coloured, with lilac colouration on side of synthorax, or brown and greenish yellow
    ● Lower half of metepimeron posteriorly margined with brown

    ⇒ genus: Zephyrogomphus
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Black and yellow or greenish-yellow, lacking lilac colouration
    ● Metepimeron posteriorly not margined with brown

7  
  • Gomphidae: Key couplet 34 of 47

  • couplet drawing
  • ● Brown and cream coloured with lilac colouration on side of synthorax
    ○ From south-western Australia

    ⇒ species: Lilac Hunter (Zephyrogomphus lateralis)
a ↑
b ↓
  • couplet drawing
  • ● Dark brown, marked with brownish and greenish yellow

    ⇒ species: Rainforest Hunter (Zephyrogomphus longipositor)

Australian distribution