''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 "unisp ...

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 dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threate ...

in the family

Aeshnidae Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies, found nearly worldwide, with more than 50 genera and over 450 species. The family includes some of the largest dragonflies. Description Common worldwide or nearl ...

. '' Adversaeschna brevistyla'' 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: *'' Adversaeschna brevistyla''

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 dragonfly, 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 drag ...

'' 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 the ...

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