Brachydiplax denticauda

Brachydiplax denticauda is a species of dragonfly in the family Libellulidae known commonly as the palemouth. It is native to Australia, Indonesia, Papua New Guinea, and the Solomon Islands. It lives in habitat with still and slow-moving waters.

Males of this species are typical in colour for the genus, being bright powder blue on both the thorax and abdomen. The labrum is pale cream, thus giving the species its common name of palemouth. In northern Australia, it is found coastal and adjacent inland in an arc from the southern Queensland border to Broome, Western Australia.

Brief Description

This species is small in size with a wingspan of 40 to 60 millimeters. Brachydiplax denticauda usually has six antenodal crossveins in the fore-wing and five in the hind-wing whereas the very similar Brachydiplax duivenbodei has seven antenodal crossveins in the fore-wing and six in the hind-wing. Though brightly coloured, the males often go unnoticed by an observer once they land on a lily pad or similar place.

• Female
  Female
• Mature male
  Mature male
• An adult male Palemouth has a pale blue tail with a black tip
  An adult male Palemouth has a pale blue tail with a black tip
• Male puts his tail in the air in an obelisk position that is not vertical
  Male puts his tail in the air in an obelisk position that is not vertical
• Male from behind showing a creamy yellow mark on the outside of his eye rim
  Male from behind showing a creamy yellow mark on the outside of his eye rim
• Close-up of head highlighting the pale mouth
  Close-up of head highlighting the pale mouth
• Male
  Male
• Female wings
  Female wings
• Male wings
  Male wings