Silver Wisp (Agriocnemis argentea)

Silver Wisp (Agriocnemis argentea)

Inhabits still and flowing waters and temporary ponds

© 2011 DECCW, NSW and DragonflyPix.com

• Coenagrionidae: Key couplet 1 of 54

• 
• ● Arculus in hindwing situated beyond distal antenodal crossvein by at least the length of subcostal part of antenodal
  ○ Very small damselflies, hindwing shorter than 14 mm
  
  ⇒ genus: Agriocnemis

• Coenagrionidae: Key couplet 3 of 54

• 
  
  
  
• ● Inferior anal appendages almost the same length as, or shorter than, superiors

• Coenagrionidae: Key couplet 4 of 54

• 
• ● Tips of superior appendages not converging

• Coenagrionidae: Key couplet 6 of 54

• 
• ● Small black spot at upper end of metapleural suture

• Coenagrionidae: Key couplet 7 of 54

• 
• ● Upper surface of superior appendage ending in short, stout tooth
  ○ Mature males covered in white pruinescence
  
  ⇒ species: Silver Wisp (Agriocnemis argentea)

• Coenagrionidae: Key couplet 8 of 54

• 
• ● Posterior lobe of pronotum well developed

• Coenagrionidae: Key couplet 9 of 54

• 
  
  
• ● Central part of posterior lobe of pronotum, if differentiated from rest, a single, upright flap, or depressed

• Coenagrionidae: Key couplet 10 of 54

• 
• ● Central part of superior lobe of pronotum, if differentiated, a simple or trilobed flap, usually highest in midline

• Coenagrionidae: Key couplet 12 of 54

• 
• ● Margins of central and lateral portions of posterior lobe of pronotum discontinuous, central portion ending behind lateral portion
  ○ From north-western Australia
  
  ⇒ species: Silver Wisp (Agriocnemis argentea)

• Coenagrionidae: Key couplet 12 of 54

• 
• ● Margins of central and lateral portions of posterior lobe of pronotum continuous
  ○ From eastern and northern Australia

• Coenagrionidae: Key couplet 13 of 54

• 
• ● Central portion of posterior lobe scarcely differentiated from lateral portions
  
  ⇒ species: Silver Wisp (Agriocnemis argentea)