''Adversaeschna'' 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 "unispec ...

genus of large

dragonflies A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threa ...

in the family

Aeshnidae The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The family includes the largest dragonflies found in North America and Europe Europe is a large peninsula conventionally considered a continent in its o ...

. ''

Adversaeschna brevistyla The blue-spotted hawker (''Adversaeschna brevistyla'') is the only known species of dragonfly of the genus ''Adversaeschna'' in the family Aeshnidae The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The fam ...

'' is the only known species of this genus which is found in Australia, New Zealand, Norfolk Island and some Pacific Islands.

Species

The genus ''Adversaeschna'' includes only one species: *''

Etymology

The word ''Adversaeschna'' is a combination of two Latin words: ''adversus'', meaning opposite in physical position; and ''aeschna'', derived from the genus ''

Aeshna ''Aeshna'', or the mosaic darners, is a genus of dragonflies from the family Aeshnidae. Species within this genus are generally known as "hawkers" (Old World) or "darners" (New World). Description These are relatively large dragonflies. T ...

'' named by Danish entomologist

Johan Fabricius Johan Johannes Fabricius (24 August 1899 – 21 June 1981), who published in English as Johan Wigmore Fabricius, was a Dutch writer, journalist and adventurer. Fabricius was born in Bandung, Java. He wrote approximately 60 books, among them ...

in 1775. ''Adversaeschna brevistyla'' was described by

Tony Watson Anthony Michael Watson (born May 30, 1985) is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the Pittsburgh Pirates, Los Angeles Dodgers, San Francisco Giants and Los Angeles Angels. Watson attend ...

in 1992 as being taxonomically isolated from other dragonflies in the genus ''Aeshna''.

References

{{Taxonbar, from=Q2677563 Aeshnidae Anisoptera genera Monotypic Odonata genera Odonata of Oceania Taxa named by J.A.L. (Tony) Watson Insects described in 1992