Joy described a number of beetles as new to science. In chronological order these were: • the
hydraenid beetle Hydraena britteni in 1907 • the
rove beetle Astenus lyonessius in 1908 • the rove beetle
Thinobius bicolor in 1911 • the
ground beetle Bradycellus sharpi and the
rove beetle Bledius fergussoni in 1912 • the rove beetles
Gabrius suffragani,
G. subnigritulus,
G. toxotes,
Philhygra malleus,
P. obtusangula and
P. britteni in 1913 • the rove beetle
Atheta nannion in 1931 The
latridiid beetle Enicmus histrio and the rove beetle
Bisnius scoticus were described jointly with
John Tomlin in 1910 and 1913 respectively. In addition to his work on Coleoptera, Joy also discovered the Brown Ant
Lasius brunneus (then unknown in Britain) at
Theale in
Berkshire on 21 January 1923 (Donisthorpe 1927). The Berkshire Birds website credits him as discovering the ornithological potential of
Reading Sewage Farm. ==Sport==