Synthemistidae

The Synthemistidae are the family of dragonflies commonly known as tigertails, or sometimes called southern emeralds. This family is sometimes treated as a subfamily of Corduliidae. This is an ancient dragonfly family, with some species occurring in Australia and New Guinea. Most species are small in size and have narrow abdomens. Their nymphs are bottom dwellers, and resist droughts by burying themselves very deeply. Synthemistid dragonflies frequently prefer marshy areas, as well as fast-flowing streams. The family Synthemistidae is sometimes called Synthemidae.

Genera
The family Synthemistidae includes the following genera:
 * Apocordulia Watson, 1980
 * Archaeophya Fraser, 1959
 * Archaeosynthemis Carle, 1995
 * Austrocordulia Tillyard, 1909
 * Austrophya Tillyard, 1909
 * Austrosynthemis Carle, 1995
 * Choristhemis Tillyard, 1910
 * Cordulephya Selys, 1870
 * Eusynthemis Förster, 1903
 * Gomphomacromia Brauer, 1864
 * Hesperocordulia Tillyard, 1911
 * Idionyx Hagen, 1867
 * Idomacromia Karsch, 1896
 * Lathrocordulia Tillyard, 1911
 * Lauromacromia Geijskes, 1970
 * Macromidia Martin, 1907
 * Micromidia Fraser, 1959
 * Neocordulia Selys, 1882
 * Neophya Selys, 1881
 * Nesocordulia McLachlan, 1882
 * Oxygastra Selys, 1870
 * Pseudocordulia Tillyard, 1909
 * Syncordulia Selys, 1882
 * Parasynthemis Carle, 1995
 * Synthemiopsis Tillyard, 1917
 * Synthemis Selys, 1870
 * Tonyosynthemis Theischinger, 1998