Lionel Dietrichsen

alt=Two small lorikeets, each with a dark purple crown and a yellow-orange forehead and ear-coverts (akin to the location of cheeks on a person). One is inside a birdhouse, only its neck, head, and feet visible. The other is perched at the entrance. Starting behind the purple crown, its feathers are a gradient of green to yellow down the nape to the mantle, or upper back. Its chin, chest and belly are light blue, and its thighs and under-tail feathers are yellowish-green. Its green tail has some orange-red coloration at the bases of the lateral feathers. A pair of purple-crowned lorikeets (Parvipsitta porphyrocephala), which Dietrichsen described in 1837.

Lionel Lorenzo Dietrichsen (1806–1846) was an English ornithologist who operated as a merchant at Oxford Street. He collected bird skins and described the species Parvipsitta porphyrocephala, which is known as Dietrichsen's lory, in 1832. He died, unmarried, reportedly by nearly severing his own head.