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Table 2.
Eye and numeric variations of bristles on some structures of Tunga species.
| Species of Tunga | Eye: pigmentation/measurements (µm)/presence or absence of recess into its internal margin | Number of bristles on the |
|||
|---|---|---|---|---|---|
| Postantennal region | Posterior region to the frontal tubercle | Antennal segment II | Base of the maxilla | ||
| T. penetrans | Pigmented, 61.2 × 44.3, without recess | 12–14 | 8 | 4 | 6 |
| T. caecata | Unpigmented, 24.6 × 17.2, without recess | 12–15 | 8 | 1 | 1 |
| T. travassosi | Unpigmented, 35.1 × 27.1, with recess | 10 | 9 | 2 | 1 |
| T. terasma | Pigmented, 62.5 × 49.2, with recess | 20 | 6 | 2 | 3 |
| T. bondari | Pigmented, 52.5 × 27.1, with recess | 10 | 8 | 1 | 3 |
| T. caecigena | Absent | 8–10 | 1 | 1 | |
| T. callida | Absent | 3–5 | 6 | 2 (?) | |
| T. libis | Pigmented, without recess | 12 | 8 | 1 | 1 |
| T. monositus | Unpigmented, without recess, narrow and inconspicuous | 10 | 8 | 1 | 0 |
| T. trimamillata | Pigmented, 59.0 × 46.8, with recess | 17–19 | 8 | 4 | 6–7 |
| T. bossii | Unpigmented, 36.9 × 22.1, without recess | 10 | 6 | 1 | 2 |
| T. bonneti | Pigmented, with recess | 1 | |||
| T. hexalobulata | Pigmented, 63.4 × 55.3, without recess | 9 | 8 | 3 | 6 |
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