Chemicals, commercial sources, purity, release rates, and dispensers used in laboratory and field studies of the physiology and behavior of the checkered beetle, Thanasimus formicarius.

a)1: Aldrich, USA; 2: Borregaard, Norway; 3: Acros, USA; 4: Pherotech, CAN; 5: Bedoukian Research INC, USA. 6: SciTech, CZ; 7: C. Roth, Germany.b)Release rates were estimated by following the retreat of the meniscus over time for capillaries; and measured by weight loss for PE-vials at 20–21°C in lab.c)Neat compounds evaporating from Microcaps® with one end sealed by dental wax.d)3 ml-hard polyethylene vial (Kartell, Italy) with 13-mm-diam., 24 mm inner height.e)Polyethylene vial (Kartell, Italy) with 20-mm-diam., 29 mm inner height.f)Polyethylene vial (Kartell, Italy) with 6-mm-diam., 29 mm inner height.