Table 1. Morphometric data (mean ± SE) for various sensilla of adult P. sibiricus except for peg-like sensilla basiconica IV.
| Distribution | Length (μm) | Basal diameter (μm) | N | |
|---|---|---|---|---|
| St I | Lm, Lb-sg1, sg2, sg3, sg4 | 47.36 ± 6.63 | 2.92 ± 0.40 | 20 |
| St II | Lb-sg1 | 49.23 ± 9.4 | 3.24 ± 0.53 | 20 |
| St III | Lb-sg4 | 94.39 ± 11.06 | 3.46 ± 0.39 | 20 |
| Sb I | Lb-sg2, sg4 | 20.91 ± 5.59 | 3.79 ± 0.52 | 15 |
| Sb I | Lb-sg2 | 7.21 ± 0.59 | 1.87 ± 0.22 | 15 |
| Sb III | Lb-sg3 | 12.85 ± 2.48 | 1.97 ± 0.18 | 13 |
| Sca | Lb-sg2 | - | 10.71 ± 2.32 | 18 |
| Spl | Lb-sg4 | - | 3.58 ± 0.66 | 5 |
| Tcp | Lm | 1.01 ± 0.16 | 0.99 ± 0.14 | 4 |
| Cpo | Lm, Lb-sg1 | - | 1.38 ± 0.33 | 20 |
N = sample size; Lm, labrum; Lb-sg1, the first segment of labium; Lb-sg2, the second segment of labium; Lb-sg3, the third segment of labium; Lb-sg4, the fourth segment of labium; St I, sensilla trichodea I; St II, sensilla trichodea II; St III, sensilla trichodea III; Sb I, sensilla basiconica I; Sb II, sensilla basiconica II; Sb III, sensilla basiconica III; Sca, sensilla campaniformia; Spl, sensilla placodea; Tcp, triquetrous triangular cuticular processes; Cpo, cuticular pores.