Diplacodes haematodes

Scarlet Percher (Diplacodes haematodes)

Inhabits streams and rivers as well as still waters

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

• Libellulidae: Key couplet 1 of 67

• 
• ● Distal antenodal of forewing incomplete, only the costal section present

• Libellulidae: Key couplet 35 of 67

• 
• ● Hindwing triangle free

• Libellulidae: Key couplet 39 of 67

• ○ Not as above

• Libellulidae: Key couplet 40 of 67

• 
• ● Base of hindwing triangle at or slightly proximal to arculus

• Libellulidae: Key couplet 41 of 67

• 
• ● Tip of anal loop closed, the bounding veins meeting midvein one row of cells away from wing margin

• Libellulidae: Key couplet 45 of 67

• 
• ● Subtriangle of forewing with one to three cells, its basal side well-defined

• Libellulidae: Key couplet 46 of 67

• ○ Smaller dragonflies, hindwing shorter than 38 mm

• Libellulidae: Key couplet 47 of 67

• 
• ● Discoidal field of forewing, between triangle and level of origin of IR3, starting with two or three rows of cells, followed by two rows

• Libellulidae: Key couplet 49 of 67

• ○ Hindwing shorter than 30 mm

• Libellulidae: Key couplet 51 of 67

• 
• ● Hind margin of eye uniformly curved
  
  ⇒ genus: Diplacodes

• Libellulidae: Key couplet 52 of 67

• 
• ● Subtriangle of forewing subdivided into two or three cells
  ○ Wings hyaline, or yellow to yellowish brown at base or tips

• Libellulidae: Key couplet 53 of 67

• ○ Abdomen yellowish-brown to bright red, with or without black markings

• Libellulidae: Key couplet 54 of 67

• 
• ● A small dark brown to black spot on intersegmental suture just above level of metastigma

• Libellulidae: Key couplet 55 of 67

• 
  
• ● Male abdomen lacking lateral black markings
  ● Female abdominal segments 4-7 with poorly-defined brownish-red mid-dorsal line of similar shape, sometimes absent
  ○ Base of male hindwing yellow to level of triangle, tip of female wings commonly brownish-yellow
  
  ⇒ species: Scarlet Percher (Diplacodes haematodes)