Table 2.

Captured insects in four types of baited traps aimed to capture Vespa velutina. Reported numbers correspond to the Mean of individuals captured per sampling per trap ± standard deviation. Non-target/V. velutina = mean number of individuals of non-target species captured per each V. velutina captured. The overall proportion represents the number of individuals of non-target species captured per each V. velutina trapped throughout the study (calculated as the sum of all non-target individuals/sum of all V. velutina individuals for each type of trap). The tested traps were abbreviated as VespaCatch® trap (V), Econex® trap (X), Eva® trap (E) and prototype (R).

	Trap
Captured Insects	R	E	V	X
All insects	81.62 ± 80.28	136.81 ± 147.47	1501.86 ± 1352.99	1643.58 ± 2326.26
Non-target insects	76.89 ± 80.06	118.86 ± 132.81	1485.83 ± 1350.86	1612.11 ± 2309.68
Non-target/ V. velutina	80.15 ± 80.38	9.98 ± 11.78	97.31 ± 112.69	64.61 ± 63.32
Vespidae
Vespa velutina	0.21 ± 0.48	17.94 ± 19.80	32.06 ± 24.41	31.47 ± 24.55
Vespa crabro	0	0.19 ± 0.40	1.74 ± 2.39	0.97 ± 1.79
Other vespids	0	4.36 ± 6.29	16.83 ± 20.11	9.00 ± 10.65
Diptera	49.77 ± 63.37	91.06 ± 117.96	1273.64 ± 1314.54	1350.64 ± 2267.52
Formicidae	26.27 ± 137.31	12.75 ± 39.46	137.31 ± 260.41	156.56 ± 444.07
Coleoptera	5.26 ± 7.37	5.67 ± 15.72	18.31 ± 31.40	42.47 ± 36.91
Lepidoptera	0.03 ± 0.17	4.67 ± 5.79	19.72 ± 22.13	46.08 ± 36.42
Anthophila	0	0.14 ± 0.35	0.39 ± 0.60	0.80 ± 2.01
Other groups	0.09 ± 0.52	0.03 ± 0.17	1.92 ± 5.45	4.86 ± 16.96
Overall	395.4	6.6	45.9	51.2