Table 3.

CDL of field-collected populations when reared under three different temperature treatments

Temperature	Collection site	CDL (in h)	±95% CI
25°C	Original*	15.13	15.06–15.23
	LWY	15.13	15.07–15.21a
	LNV	14.94	14.89–14.98a
	PCO	14.88	14.80–14.95b
	ANM	14.67	14.60–14.75b
30–20°C	Original	na	na
	LWY	15.00	14.96–15.04a
	LNV	14.69	14.62–14.75b
	PCO	14.85	14.75–15.03b
	ANM	14.51	14.45–14.57c
35–15°C	Original†	14.88	14.78–15.01
	LWY	14.71	14.64–14.78
	LNV	14.16	14.08–14.24
	PCO	14.48	14.42–14.53
	ANM	13.96	13.90–14.03

ANM, Artesia New Mexico; LNV, Lovelock, Nevada; LWY, Lovell, Wyoming; PCO, Pueblo, Colorado.

^*Original refers to the laboratory colony derived from field-collected insects that came from three locations in western Nevada and eastern California as previously described (Bean et al. 2007a).

^†Original determination was made using a thermoperiod with 18°C amplitude, 34–16°C, with a 25°C average (Bean et al. 2007a).

Superscript alphabets indicate significant differences between CDLs within temperature treatments (P < 0.04).