From: Vector competence of pre-alpine Culicoides (Diptera: Ceratopogonidae) for bluetongue virus serotypes 1, 4 and 8
Ratio
No. of Culicoides exposed to blood/engorged (%)
Mean feeding rate (%)
1:1a
69/9 (13)
14
120/8 (7)
80/14 (18)
2:1ab
86/6 (7)
19
104/26 (25)
82/17 (21)
9:1b
84/12 (14)
28
32/15 (47)
33/14 (42)