Host plants:
The larvae feed in the first place on acacias. I recorded larvae together with those of Azanus ubaldus on the neophytic Vachellia farnesiana on Gran Canaria.
Habitat:
Isturgia deerraria inhabits dry and warm, often semiarid places with acacias. I found the moths and larvae in a dry barranco ground in Gran Canaria.
Life cycle:
Isturgia deerraria is probably found year-round. I recorded moths and larvae of all instars in Gran Canaria (Arguineguin) in mid-December 2016. The larvae rest openly on twigs and feed especially on flowers and their buds. The moths are easily flushed and rest on stones or in the vegetation.
Remarks:
Isturgia deerraria occurs in Africa, in the Cape Verde Islands, in Malta, some Canarian Islands and sporadically in the (southern) Iberian Peninsula.
Isturgia deerraria has been listed as a subspecies of I. pulinda (S-Asia) so far.