Adrian Hardy Haworth (19 April 1767, Hull – 24 August 1833, Chelsea) was an English entomologist, botanist and carcinologist.
He was the son of Benjamin Haworth of Haworth Hall. He was educated by tutors and steered towards a career in law, but had little interest in the profession and after inheriting the estate of his parents, devoted all his time to natural history.
In 1792 he settled in Little Chelsea, London, where he met William Jones (1750–1818) who was to have a great influence on him. He became a Fellow of the Linnean Society of London in 1798. His research work was aided by his use of the library and herbarium of his friend Sir Joseph Banks (1743–1820) and regular visits to the Royal Botanic Gardens, Kew.
He was the author of Lepidoptera Britannica (1803–1828), the most authoritative work on British butterflies and moths until Henry Tibbats Stainton's Manual in 1857. He was also a carcinologist, specialising in shrimp. He is responsible for the names of several taxa, including:Order Mysida Haworth, 1825
Family Mysidae Haworth, 1825
Superfamily Pandaloidea Haworth, 1825
Family Pandalidae Haworth, 1825
Superfamily Crangonoidea Haworth, 1825
Family Crangonidae Haworth, 1825
Family Porcellanidae Haworth, 1825
and named 22 new genera of moths
The plant genus Haworthia is named after Adrian Hardy Haworth. This botanist is denoted by the author abbreviation Haw. when citing a botanical name.
The British entomologist John Curtis named a moth of the Noctuidae family 1829 in honour of Adrian Hardy Haworth Celaena haworthii.
In 1812 he wrote the first paper in Volume 1 of the Transactions of the Entomological Society of London, a review of previous work on British insects. In 1833, he lent support to the founding of what became the Royal Entomological Society of London having been President of its predecessor. He was a Fellow of the Horticultural Society and a Fellow of the Linnean Society.Synopsis Plantarum Succulentarum (London, 1812)
Saxifragearum enumeratio (London, 1821)
Lepidoptera Britannica (1803-1828)
Observations on the Genus Mesembryanthemum (London, 1794)