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1(0). Postantennal organ absent..................................... 2
Postantennal organ rudimentary (fig.1)........................ 6
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Fig.1. |
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2(1). Head with 2 + 2 or fewer eyes................................. 3
Head with 7 + 7 or more eyes.................................. 4
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3(2). Mucro with strong anteapical tooth (fig.2b)........ Neorchesella
Mucro with very weak anteapical tooth (fig.2a)...... Bessoniella
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Fig.2. |
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4(2). Second antennal segment not subsegmented (fig.3b&c)........... 5
Second antennal segment subsegmented (fig.3a)........ Orchesella
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Fig.3. |
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5(4). First antennal segment not subdivided (fig.3c)...... Corynothrix
First antennal segment subdivided (fig.3b)........ Orchesellides
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6(1). Mucro bidentate (fig.4b)........................ Australotomurus
Mucro falcate (fig.4a)................................ Nothobrya
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Fig.4. |
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