Table 2.
Morphological characteristics of each type of sensilla in the antennae of A. mali
| Type | Length (μm) | Diameter (μm) | Wall | Tip | Socket |
|---|---|---|---|---|---|
| Sc.1 F | 38.4 ± 2.4 | 2.86 ± 0.2* | Grooved | Sharp | Wide |
| M | 32.7 ± 5.8 | 2.26 ± 0.1 | |||
| Sc.2 F | 63.9 ± 2.3 | 3.20 ± 0.8 | Grooved | Sharp | Tight |
| M | 65.8 ± 2.6 | 3.53 ± 0.2 | |||
| Sc.3 F | 53.5 ± 2.0 | 3.0 ± 0.2 | Grooved | Sharp | Tight |
| M | 48. 2 ± 2.5 | 2.6 ± 0.1 | |||
| Sc.4 F | 55.1 ± 2.2 | 2.2 ± 0.1 | Grooved | Sharp | Wide, porous |
| M | 56.3 ± 2.2 | 2.0 ± 0.1 | |||
| Tr.1 F | 18.7 ± 0.5 | 1.9 ± 0.1 | Smooth, porous | Branches | Tight |
| M | 24.8 ± 3.0 | 2.4 ± 0.2 | |||
| Tr.2 F | 17.2 ± 0.9 | 1.8 ± 0.1 | Smooth, porous | Branches | Tight |
| M | 15.5 ± 1.5 | 1.8 ± 0.1 | |||
| Tr.3 F | 21.8 ± 0.0 | 1.8 ± 0.1 | Smooth, porous | Sharp | Tight |
| M | – | – | |||
| Ba.1 F | 8.9 ± 0.3 | 2.9 ± 0.1* | Smooth, porous | Blunt | – |
| M | 9.1 ± 0.3 | 2.4 ± 0.1 | |||
| Ba.2 F | 11.5 ± 0.3 | 1.4 ± 0.3* | Smooth, porous | Sharp | – |
| M | 10.8 ± 0.3 | 3.0 ± 0.3 | |||
| Ba.3 F | 11.1 ± 0.2 | 2.8 ± 0.1 | Smooth, porous | Sharp | – |
| M | 11.7 ± 0.4 | 2.9 ± 0.1 | |||
| Ba.4 F | 19.3 ± 0.5 | 2.3 ± 0.1 | Grooved | Blunt, papillae | Tight |
| M | 19.3 ± 0.9 | 2.2 ± 0.1 | |||
| MPG F | 4.7 ± 0.1 | 3.3 ± 0.1 | Smooth | Irregular | – |
| M | 7.7 ± 2.5 | 5.3 ± 2.0 | |||
| BB.1 F | 7.0 ± 0.4 | 1. 6 ± 0.4 | Smooth | Blunt | Tight |
| M | 6.4 ± 0.4 | 1. 4 ± 0.8 | |||
| BB.2 F | 7.2 ± 0.1 | 1.4 ± 0.1 | Smooth | Blunt | Tight |
| M | – | – |
Notes: *indicates significant differences between males and females (t-test, P < 0.05) (highlighted in bold); Tr.3 and BB.2 only found in females; F, females; M, males.