''Caliagrion'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

damselflies Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Epiprocta) but are usually smaller and have slimmer bodies. Most species fold the win ...

belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Coenagrionidae Coenagrionidae is a family of damselflies, also known as pond damselflies, in the order Odonata and the suborder Zygoptera. The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. More than 1,300 spec ...

. The single species of this genus, ''Caliagrion billinghursti'', is commonly known as a large riverdamsel, and is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to south-eastern Australia, where it inhabits slow-flowing rivers and ponds. ''Caliagrion billinghursti'' is a large damselfly; the male is coloured bright blue with black, while the female is yellow and black.

Gallery

Caliagrion billinghursti female wings (34664833312).jpg , Female ''Caliagrion billinghursti'' wings Caliagrion billinghursti male wings (34664840382).jpg , Male ''Caliagrion billinghursti'' wings

References

{{Taxonbar, from1=Q9184263, from2=Q2300407 Coenagrionidae Zygoptera genera Monotypic Odonata genera Odonata of Australia Endemic fauna of Australia Taxa named by Robert John Tillyard Insects described in 1913 Damselflies