| african horse sickness and the overwintering of culicoides spp. in the iberian peninsula. | the presence at different latitudes and the seasonal distribution of two known or potential vectors of african horse sickness (ahs) virus--culicoides imicola and c. obsoletus--were investigated in the iberian peninsula using light trap collections. culicoides imicola was present as far north as 41 degrees n but not at 43 degrees n (asturias, spain), whereas c. obsoletus was found at all latitudes. in the northern part of the distribution of c. imicola, adults of this species were present for onl ... | 1994 | 7949350 |