About Caladenia atrovespa (D.L.Jones) G.N.Backh.
Caladenia atrovespa, commonly known as the thin-clubbed mantis orchid, is a terrestrial, perennial, deciduous herb in the orchid family Orchidaceae. This species is endemic to New South Wales. It has an underground tuber and a single hairy leaf. It is similar to Caladenia tentaculata, but differs by having smaller flowers, sepals with narrower glandular tips, straight lateral sepals, and a narrower labellum. The species was first formally described by David Jones, who named it Arachnorchis atrovespa. The description was published in The Orchadian, from a specimen collected on Black Mountain in the Australian Capital Territory. In 2010, Gary Backhouse transferred the species to the genus Caladenia, renaming it Caladenia atrovespa. Its specific epithet atrovespa comes from the Latin words atra meaning 'black' and vespa meaning 'wasp', a reference to the large black thynnid wasp that pollinates this orchid. This orchid grows on slopes and ridges in drier forests in southern New South Wales and the Australian Capital Territory.
