Table 3. Piecewise cubic Hermite interpolating polynomial parameters for the mean lifespan of Culicoides according to temperature values from −6°C to 42°C, see Eq (12).

θ range (°C)	a0 (days)	a1 (days/°C)	a2 (days/°C2)	a3 (days/°C3)	b (°C)
-6 ≤ θ ≤ -4	1/12	3.69⋅10−1	1.48⋅10−2	1.49⋅10−2	-6
-4 ≤ θ ≤ 15	1	6.07⋅10−1	1.56⋅10−1	-6.04⋅10−3	-4
15 ≤ θ ≤ 20	27.5	0	-7.77⋅10−1	8.59⋅10−2	15
20 ≤ θ ≤ 25	18.8	-1.33	4.58⋅10−2	9.40⋅10−4	20
25 ≤ θ ≤ 30	13.4	-8.04⋅10−1	8.55⋅10−2	-1.05⋅10−2	25
30 ≤ θ ≤ 40.5	10.2	-7.40⋅10−1	-6.91⋅10−2	5.11⋅10−3	30
40.5 ≤ θ ≤ 42	1	-5.89⋅10−1	7.30⋅10−2	-9.06⋅10−3	40.5