Table 1.

Rhodnius pallescens palm infestation rates, abundance, density, and population characteristics, Panama^*

Variable	Contiguous	Peridomicile	Early secondary	Mid-secondary	Pasture	Total
% Palms infested with Rhodnius†	57.1 (20/35)	77.1 (27/35)	85.7 (30/35)	91.4 (32/35)	88.6 (31/35)	80 (140/175)
No. bugs captured	73	201	299	346	267	1,186
Mean no. bugs captured/site (95% CI)‡	10.4 (8.2–13.1)	28.7 (24.9–33.0)	42.7 (38.0–47.9)	49.4 (44.3–55.0)	38.1 (37.7–43.0)	33.8 (32.0–35.9)
Overall density of bugs per habitat type§	2.06	5.74	8.54	9.86	7.63	6.78
Mean density of bugs per infested palm¶ (95% CI)	3.65 (2.9–4.6)	7.44 (6.5–8.6)	9.97 (8.9–11.2)	10.81 (9.7–12.0)	8.61 (7.6–9.7)	8.47 (8.0–9.0)
No. of bugs/trap night (no. trap nights)	0.56 (104)#	1.91 (105)	2.85 (105)	3.29 (105)	2.53 (105)	2.3 (524)
No. adults captured	12	48	65	68	35	228
No. nymphs captured	46	153	234	277	232	942
Total nymph:adult ratio	3.83	3.19	3.62	4.07	6.63	4.12
Colonization index**	0.85	0.93	0.90	0.94	1.00	0.93
Mean ± SD weight/length ratio (mg/mm) of N4, N5, and adults	5.10 ± 2.32	2.77 ± 0.42	3.91 ± 2.24	3.64 ± 2.45	4.08 ± 1.56	3.97 ± 2.2

^*CI = confidence interval.

^†No. palms with bugs/total no. palms examined.

^‡Seven sites per habitat type.

^§No. bugs captured/no. palms, sampled per site.

^¶Mean no. of bugs captured per infested palm.

^#One trap predated.

^**No. palms with nymphs/no. palms with triatomines.