Abstract
Eubenangee virus multiplied to a high titre in bothCulicoides variipennis andC. nubeculosus after intrathoracic inoculation but only inC. variipennis after oral ingestion. 7.9 per cent of the orally infectedC. variipennis supported virus replication and transmission of virus was demonstrated after 15 days' incubation at 26° C. The significance of low infection rates when assessing vector potential in the laboratory and the relevance of these infection rates to the field situation are also discussed.