Siricidae (Hymenoptera: Symphyta: Siricoidea) of the Western Hemisphere
Nathan M. Schiff, Henri Goulet, David R. Smith, Caroline Boudreault, A. Dan Wilson, and Brian E. Scheffler
Appendix 1: Statistical Data
| Species (source) |
Number of specimens |
Length of annulus 10 relative to diameter of ovipositor at annulus 10 |
| Mean |
St. Dev. |
+2 S.D. |
-2 S.D. |
Min. |
Max. |
| S. nitidus (QC) |
32 |
1.54 |
0.13 |
1.81 |
1.29 |
1.27 |
1.85 |
| S. nitidus (AK) |
30 |
1.65 |
0.12 |
1.87 |
1.39 |
1.43 |
1.76 |
| S. cyaneus (NB) |
40 |
1.57 |
0.12 |
1.82 |
1.33 |
1.30 |
1.77 |
| S. abietinus (BC) |
26 |
2.06 |
0.15 |
2.37 |
1.75 |
1.85 |
2.05 |
Table 1. Mean, standard deviation (values for 1, +2 and -2) and range for the proportion of the length of annulus 10 between pits 9 and 10 relative to the diameter of the ovipositor at annulus 10.
| Species |
Number of specimens |
Length of basal relative to apical sheath sections |
| Mean |
St. Dev. |
+2 S.D. |
-2 S.D. |
Min. |
Max. |
| Sirex longicauda |
17 |
0.51 |
0.05 |
0.61 |
0.41 |
0.41 |
0.57 |
| Sirex areolatus |
28 |
0.66 |
0.07 |
0.79 |
0.53 |
0.49 |
0.75 |
| Sirex behrensii |
25 |
1.05 |
0.06 |
1.18 |
0.93 |
0.87 |
1.20 |
| Sirex nigricornis |
30 |
1.26 |
0.09 |
1.45 |
1.07 |
1.07 |
1.44 |
| Sirex noctilio |
30 |
1.17 |
0.06 |
1.28 |
1.05 |
1.06 |
1.31 |
| Sirex californicus |
30 |
1.17 |
0.07 |
1.32 |
1.03 |
1.06 |
1.35 |
| Sirex varipes |
53 |
0.98 |
0.03 |
1.05 |
0.91 |
0.87 |
1.09 |
| Sirex nitidus |
30 |
1.04 |
0.06 |
1.17 |
0.91 |
0.89 |
1.21 |
| Sirex cyaneus |
30 |
1.00 |
0.06 |
1.12 |
0.87 |
0.83 |
1.10 |
| Sirex abietinus |
28 |
0.87 |
0.06 |
1.00 |
0.74 |
0.73 |
0.97 |
Table 2. Mean, standard deviation (values for 1, +2 and -2) and range for the proportion of the length of the basal sheath section relative to the apical sheath section.
| Species |
Number of specimens |
Length of sheath relative to length of fore wing |
| Mean |
St. Dev. |
+2 S.D. |
-2 S.D. |
Min. |
Max. |
| Sirex longicauda |
17 |
1.10 |
0.08 |
1.41 |
1.25 |
1.16 |
1.39 |
| Sirex areolatus |
28 |
0.84 |
0.09 |
1.21 |
1.03 |
0.82 |
1.23 |
| Sirex behrensii |
25 |
0.68 |
0.04 |
0.82 |
0.75 |
0.69 |
0.85 |
| Sirex nigricornis |
30 |
0.57 |
0.03 |
0.69 |
0.63 |
0.59 |
0.73 |
| Sirex noctilio |
30 |
0.61 |
0.03 |
0.74 |
0.67 |
0.60 |
0.74 |
| Sirex californicus |
30 |
0.58 |
0.05 |
0.79 |
0.69 |
0.55 |
0.78 |
| Sirex varipes |
53 |
0.70 |
0.03 |
0.83 |
0.77 |
0.68 |
0.90 |
| Sirex nitidus |
30 |
0.66 |
0.03 |
0.80 |
0.73 |
0.64 |
0.78 |
| Sirex cyaneus |
30 |
0.71 |
0.04 |
0.86 |
0.79 |
0.71 |
0.88 |
| Sirex abietinus |
28 |
0.65 |
0.07 |
0.95 |
0.80 |
0.63 |
0.97 |
Table 3. Mean, standard deviation (values for 1, +2 and -2) and range for the proportion of the length of the sheath relative to the length of the fore wing.
| Species |
Number of specimens |
Length of apical relative to basal sheath sections |
| Mean |
St. Dev. |
+2 S.D. |
-2 S.D. |
Min. |
Max. |
| U. gigas |
9 |
1.40 |
0.02 |
1.48 |
1.31 |
1.34 |
1.45 |
| U. flavicornis |
20 |
1.32 |
0.10 |
1.51 |
1.12 |
1.16 |
1.46 |
Table 4. Mean, standard deviation (values for 1, +2 and -2) and range for the proportion of the length of apical section of the sheath relative to that of the basal section of the sheath.
| Species |
Number of specimens |
Length of metatarsomere 2 relative to maximum height of metatarsomere 2 |
| Mean |
St. Dev. |
+2 S.D. |
-2 S.D. |
Min. |
Max. |
| U. flavicornis |
30 |
6.80 |
0.60 |
8.00 |
5.54 |
5.58 |
8.25 |
| U. albicornis |
30 |
4.61 |
0.30 |
5.21 |
4.00 |
4.00 |
5.11 |
| U. gigas |
21 |
5.38 |
0.45 |
6.27 |
4.50 |
4.50 |
6.27 |
Table 5. Mean, standard deviation (values for 1, +2 and -2) and range for the proportion of the length of the metatarsomere 2 relative to the maximum height of the metatarsomere 2.
