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| Ruttner No. | Character |
| A. Hair |
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| 1 | Length of cover hair on tergite 5 |
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| 2 | Width of the tomentum band on the side of tergite 4 |
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| 3 | Width of the dark stripe between the tomentum and the posterior rim of the tergite |
| B. Size |
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| 5 | Femur, length |
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| 6 | Tibia, length |
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| 7 | Metatarsus, length |
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| 8 | Metatarsus, width |
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| 9 | Tergite 3, longitudinal diameter |
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| 10 | Tergite 4, longitudinal diameter |
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| 11 | Sternite 3, longitudinal diameter |
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| 12 | Wax plate(mirror) of sternite 3, longitudinal diameter |
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| 13 | Wax plate of sternite 3, transversal diameter |
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| 14 | Distance between wax plates of sternite 3 |
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| 15 | Sternite 6, longitudinal diameter |
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| 16 | Sternite 6, transversal diameter |
| C. Fore-wing |
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| 17 | Fore-wing, length |
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| 18 | Fore-wing, width |
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| 19 | Cubital vein, distance a |
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| 20 | Cubital vein, distance b |
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| 21-31 | 11 angles of wing venation |
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| (No. 21 = A4, 22 = B4, 23 = D7, 24 = E19, 25 = G18, 26 = J10, 27 = J16, 28 = K19, 29 = L13, 30 = N23, 31 = O26) |
| D. Colour |
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| 32 | Pigmentation of tergite 2 |
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| 33 | Pigmentation of tergite 3 |
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| 34 | Pigmentation of tergite 4 |
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| 35 | Pigmentation of scutellum (Sc) |
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| 36 | Pigmentation of plates of scutellum (B, K) |