''Acanthosphinx'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

genus in the family

Sphingidae The Sphingidae are a family of moths commonly called sphinx moths, also colloquially known as hawk moths, with many of their caterpillars known as hornworms. It includes about 1,450 species. It is best represented in the tropics, but species ar ...

erected by

Per Olof Christopher Aurivillius Per Olof Christopher Aurivillius (15 January 1843 – 20 July 1928) was a Swedish entomologist. Life Christopher Aurivillius was born at Forsa, Sweden. He was the director of the Natural History Museum in Stockholm and he specialised in Col ...

in 1891. Its only species, ''Acanthosphinx guessfeldti'', the widow sphinx, was first described by

Hermann Dewitz Hermann Dewitz (5 November 1848, Obelischken, Insterburg – 15 May 1890 Berlin) was a German entomologist who specialized in Lepidoptera. He was "Custos" or curator of the Department of Entomology at the Museum für Naturkunde in Berlin. Dewitz ...

in 1879. It is known from forests from

Sierra Leone Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is . It has a tropical climate and envi ...

to the Congo,

Angola Angola, officially the Republic of Angola, is a country on the west-Central Africa, central coast of Southern Africa. It is the second-largest Portuguese-speaking world, Portuguese-speaking (Lusophone) country in both total area and List of c ...

Zambia Zambia, officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa. It is typically referred to being in South-Central Africa or Southern Africa. It is bor ...

Malawi Malawi, officially the Republic of Malawi, is a landlocked country in Southeastern Africa. It is bordered by Zambia to the west, Tanzania to the north and northeast, and Mozambique to the east, south, and southwest. Malawi spans over and ...

Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...

and

Uganda Uganda, officially the Republic of Uganda, is a landlocked country in East Africa. It is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the ...

. The length of each forewing is 57–70 mm. The larvae feed on ''

Bridelia micrantha ''Bridelia micrantha'', the mitzeeri or the coastal golden-leaf, is a tree in the family Phyllanthaceae and is native to tropical and southern Africa as well as to the island of Réunion in the Indian Ocean. Description A medium to tall tree (u ...

''.

References

Smerinthini Monotypic moth genera Moths of Africa Lepidoptera of Cameroon Lepidoptera of Uganda Lepidoptera of Malawi Lepidoptera of Tanzania Lepidoptera of Angola Insects of the Central African Republic Lepidoptera of West Africa Lepidoptera of Zambia Taxa named by Per Olof Christopher Aurivillius Sphingidae genera {{Smerinthini-stub