## 2 Results and Discussion
### Analysis of Picked Flowering Plant VOCs
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{_O. sphegeodes_ subb. _spheodes_} & _O. bertolui_ subb. _bencensis_ & \multicolumn{2}{c}{_N. tridentata_} \\ \hline
**Compounds** & **RT \({}^{*}\)** & **Mean (\(n=3\))\({}^{h}\)** & **SD \({}^{*}\)** & **Mean (\(n=3\))** & **SD** & **Mean (\(n=3\))** & **SD** \\ \hline
2-nonanal & 24.13 & 5.39\({}^{1}\) & 0.98 & 2.88 & 1.59 & ND & - \\ undecanal & 25.86 & 0.16 & 0.08 & 0.28 & 0.00 & ND & - \\ benzene acetaldehyde & 26.42 & 0.08 & 0.02 & 2.37 & 1.06 & 0.35 & 0.07 \\ dodecanal & 27.98 & 0.37 & 0.11 & ND & - & ND & - \\ 2-ethylbenzaldehyde & 28.33 & ND & - & 0.09 & 0.02 & ND & - \\ \hline
**Total** & & **7.41** & & **18.79** & & **24.04** & \\ \hline _Esters_ & & & & & & & \\ ethyl acetate & 3.04 & ND & - & ND & - & 0.13 & 0.04 \\
3-hexen-1-ol-acetate & 18.99 & ND & - & ND & - & 0.09 & 0.02 \\ dodecanoic acid. methyl ester & 29.70 & ND & - & ND & - & ND & - \\ geranyl acetate & 30.64 & 0.08 & 0.02 & 0.05 & 0.01 & ND & **-** \\ \hline
**Total** & & **0.08** & & **0.05** & & **0.21** & \\ \hline _Ketones_ & & & & & & & \\
2-heptanone & 13.51 & 1.75 & 0.56 & 1.90 & 0.24 & 3.45 & 1.83 \\
2-nonnon-4-one & 15.90 & ND & - & ND & - & 0.12 & 0.00 \\
2-methyl-6-heptanone & 16.21 & 0.44 & 0.33 & 0.31 & 0.03 & 0.42 & 0.02 \\
3-octanone & 16.77 & ND & - & ND & - & 0.11 & 0.00 \\ acetoin & 17.60 & 0.19 & 0.01 & 7.12\({}^{2}\) & 0.13 & 6.81 & 1.87 \\
2-octanone & 17.87 & ND & - & ND & - & 1.13 & 1.18 \\ pentoic lactone & 24.39 & 0.95 & 0.03 & 0.20 & 0.10 & 0.07 & 0.02 \\ \hline
**Total** & & **3.33** & & **9.52** & & **12.1** & \\ \hline _Phenols_ & & & & & & & \\ anisole & 19.5 & ND & - & 0.31 & 0.15 & 0.17 & 0.01 \\
4-methyl anisole & 22.01 & 3.53 & 1.01 & 0.15 & 0.01 & 2.40 & 0.18 \\ phenol & 31.58 & 0.15 & 0.02 & ND & - & ND & - \\
4-methylphenol & 33.27 & 0.23 & 0.01 & 13.25\({}^{1}\) & 1.30 & 11.28\({}^{2}\) & 1.23 \\ \hline
**Total** & & **3.91** & & **13.7** & & **13.84** & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._ \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{_O. sphegeodes_ subsp. sphegeodes_} & _O. bertolomil_ subsp. _bencassis_ & & _N. tridentata_ & \\ \hline
**Compounds** & **RT \({}^{*}\)** & **Mean (\(n=3\))\({}^{*}\)** & **SD \({}^{*}\)** & **Mean (\(n=3\))** & **SD** & **Mean (\(n=3\))** & **SD** \\ \hline _Alcohols_ & & & & & & & \\ ethanol & 3.82 & ND & - & 3.11 & 0.61 & 3.28 & 0.56 \\
2-methyl-3-buten-2-ol & 7.38 & 1.20 & 0.09 & ND & - & ND & - \\ isobutanol & 10.39 & ND & - & 0.64 & 0.31 & 0.12 & 0.00 \\
1-butanol & 12.71 & ND & - & 0.05 & 0.00 & 0.09 & 0.03 \\
1-penten-3-ol & 13.00 & ND & - & ND & - & 6.37 & 0.11 \\ isosamylalcohol & 15.47 & 0.10 & 0.00 & 13.03\({}^{2}\) & 1.22 & 0.88 & 0.89 \\
1-pentanol & 16.98 & ND & - & 2.92 & 0.38 & 3.58 & 1.24 \\ eptanol & 19.20 & 0.52 & 0.12 & 0.27 & 0.02 & 0.47 & 0.18 \\
3-hexen-1-ol & 20.81 & ND & - & 0.14 & 0.02 & 8.52\({}^{3}\) & 1.56 \\
2-nonanol & 20.87 & 2.60 & 0.67 & 0.46 & 0.10 & ND & - \\
1-octet-3-ol & 22.55 & ND & - & 1.39 & 0.46 & 0.32 & 0.19 \\
1-octonel & 24.93 & 0.08 & 0.05 & ND & - & ND & - \\
1-nonanol & 27.07 & ND & - & 1.18 & 0.09 & ND & - \\
3-decen-1-ol & 29.61 & ND & - & ND & - & 0.11 & 0.06 \\ benzyl alcohol & 30.91 & ND & - & 0.32 & 0.01 & ND & - \\ \hline
**Total** & & **4.5** & & **23.5** & & **23.74** & \\ \hline _Furans_ & & & & & & & \\
2-methylfuran & 3.15 & 0.62 & 0.07 & ND & - & ND & - \\
4-ethylfuran & 4.21 & ND & - & ND & - & 5.22 & 1.43 \\ \hline
**Total** & & **0.62** & & **ND** & & **5.22** & \\ \hline _Tergenes_ & & & & & & & \\ \(\alpha\)-pinene & 6.03 & 47.95\({}^{1}\) & 2.30 & 6.47\({}^{8}\) & 0.04 & 6.23\({}^{3}\) & 0.73 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._