Table 1.
Morphological characteristics and distribution sensilla of G. italicum (N = 12).
| Type of Sensillum | Subtypes of Sensilla | Range of Length (µm) | Wall | Tip | Socket | Distribution |
|---|---|---|---|---|---|---|
| Basiconic sensilla | BS1 BS2 |
11.2–14.2 7.4–8.4 |
Groves and porous Deeply grooves and porous |
Rounded | Inflexible | Middle and distiflagellum |
| Trichoid sensilla | TRS1 TRS2 |
27.0–29.1 30.0–33.2 |
Porous Porous |
Acute | Inflexible | Middle and distiflagellum |
| Coeloconic sensilla | CoS1 CoS2 CoS3 |
- - - |
No porous No porous Groves and porous |
Blunted | Inflexible | Middle and distiflagellum |
| Chaetic sensilla | Ch1 Ch2 Ch3 Ch4 |
14.3–20.5 28.4–36.4 50.2–60.0 66.5–73.0 |
Groves and no porous |
Sharp | Flexible | On each antennomeres, but Ch3 and Ch4 are more numerous on the two last antennomeres |
| Campaniform sensillum | CaS | Molting pore | Cupola | Flexible | Several on each antennomeres | |
| Peg sensillum | PeS | No porous | Rounded | Flexible | Proximal edge of the pedicel |