''Phyllalia flavicostata'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family

Eupterotidae Eupterotidae is a family of insects in the order Lepidoptera with more than 300 described species. Diversity The family consists of four subfamilies and the unplaced ''Ganissa group''. The subfamily Eupterotinae consists of about 11 genera, the ...

. It was described by

James Farish Malcolm Fawcett James Farish Malcolm Fawcett (born 1856) was an English cavalry officer of the 5th Lancers. He was also an entomologist who specialised in Lepidoptera. Life The son of James Fawcett of Edinburgh, who was resident at Scaleby Castle in 1847, he was ...

in 1903. It is found in

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

. The wings are a pale cream colour, with a fulvous fascia on the costa, clothed with thick fulvous hairs, broad at the base, narrowing to a point at the apex. There is a thin marginal fulvous line. The larvae feed on ''

Ehrharta calycina ''Ehrharta calycina'' is a species of grass known by the common names perennial veldtgrass and purple veldtgrass. Distribution It is native to southern Africa; from South Africa (within the Cape Provinces, Free State and KwaZulu-Natal), Lesotho ...

''. They have a velvety black body, with subdorsal, lateral, and spiracular greyish-white tubercles, bearing tufts of thick fulvous hairs of moderate length with a few longer hairs among them. The head is red.Fawcett, J. M. (1903)
"Notes on the Transformations of some South-African Lepidoptera"
''Transactions of the Zoological Society of London''. 17 (2): 173–174.

References

Endemic moths of South Africa Moths described in 1903 Eupterotinae {{Bombycoidea-stub