DragonflyPix

Spotted Grasshawk (Neurothemis oligoneura)

The Spotted Grasshawk (Neurothemis oligoneura) is a dragonfly species of the family Libellulidae, which contains 56 species in Australia.

The identification key to the family Libellulidae consists of 67 couplets, 5 of which are pertinent to Neurothemis oligoneura. 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.
 LibellulidaeSpotted Grasshawk
(Neurothemis oligoneura)
  • Libellulidae: Key couplet 1 of 67

  • couplet drawing
  • ● Distal antenodal of forewing incomplete, only the costal section present
  • b ↑
  • Libellulidae: Key couplet 35 of 67

  • couplet drawing
  • ● Hindwing triangle crossed
  • a ↑
  • Libellulidae: Key couplet 36 of 67

  • ○ Smaller dragonflies, hindwing markedly shorter than 45 mm
  • b ↑
  • Libellulidae: Key couplet 37 of 67

  • couplet drawing
    couplet drawing
  • ● Hypertriangle of forewing traversed by one or more crossveins
    ● Wings usually patterned with dark brown, reddish-brown or orange markings, sometimes only at base, but sometimes hyaline
    ● Generally five or more, rarely four, cells along 'sole' of stocking-shaped anal loop, including cell at 'heel'

    ⇒ genus: Neurothemis
  • b ↑
  • Libellulidae: Key couplet 38 of 67

  • ○ Wing markings, if present, extending only to level of forewing triangle, when fully developed almost black

    ⇒ species: Spotted Grasshawk (Neurothemis oligoneura)
  • a ↑
1  
  • Libellulidae: Key couplet 1 of 67

  • couplet drawing
  • ● Distal antenodal of forewing complete, both costal and subcostal sections present
a ↑
b ↓
  • couplet drawing
  • ● Distal antenodal of forewing incomplete, only the costal section present

2  
  • Libellulidae: Key couplet 35 of 67

  • couplet drawing
  • ● Hindwing triangle crossed
a ↑
b ↓
  • couplet drawing
  • ● Hindwing triangle free

3  
  • Libellulidae: Key couplet 36 of 67

  • ○ Large dragonflies, hindwing longer than 45 mm

    ⇒ species: Black Knight (Camacinia othello) (part)
a ↑
b ↓
  • ○ Smaller dragonflies, hindwing markedly shorter than 45 mm

4  
  • Libellulidae: Key couplet 37 of 67

  • couplet drawing
    couplet drawing
  • ● Hypertriangle generally free
    ● Wings hyaline
    ● Commonly three, sometimes four cells along 'sole' of stocking-shaped anal loop, including cell at 'heel'

    ⇒ species: Swampwatcher (Potamarcha congener)
a ↑
b ↓
  • couplet drawing
    couplet drawing
  • ● Hypertriangle of forewing traversed by one or more crossveins
    ● Wings usually patterned with dark brown, reddish-brown or orange markings, sometimes only at base, but sometimes hyaline
    ● Generally five or more, rarely four, cells along 'sole' of stocking-shaped anal loop, including cell at 'heel'

    ⇒ genus: Neurothemis

5  
  • Libellulidae: Key couplet 38 of 67

  • ○ Wing markings, if present, extending only to level of forewing triangle, when fully developed almost black

    ⇒ species: Spotted Grasshawk (Neurothemis oligoneura)
a ↑
b ↓
  • ○ Wing markings extending to beyond nodus, and at wing tip in females, reddish-brown

    ⇒ species: Painted Grasshawk (Neurothemis stigmatizans)

Australian distribution