Table 2. Variation in Simulium ochraceum females captured by traps at three sampling times (1100 h, 1400 h, 1700h) in Chiapas, Mexico.

	Flies per collection period
Trap	1100 h	1400 h	1700 h	F	P
Esperanza window trap (both sides)	19.25	21.50	14.75	0.59	0.5577
Human silhouette (BG-lure)	0.50	0.58	0.42	0.06	0.9379
BG- Sentinel (BG-lure)	3.58	5.42	2.00	3.1	0.0585
BG- Sentinel (octenol lure)	1.33	1.92	1.67	0.27	0.7661
Bellec plaque horizontal	0.75	1.17	0.42	0.54	0.5857
Bellec plaque vertical	0.92	0.50	0.17	1.41	0.2578
Clear window trap	0.00	0.00	0.00	nd	nd