| 1. | First instar larvae are heavily sclerotized, flattened, and spiny.
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| 2. | This may be because geophilomorphs have a more heavily sclerotized pleural membrane.
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| 3. | The spiracle plates and button are also not heavily sclerotized.
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| 4. | Pronotum is strongly sclerotized while meso-and metantoum are weakly sclerotized.
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| 5. | Pronotum is strongly sclerotized while meso-and metantoum are weakly sclerotized.
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| 6. | The latter larvae are sluggish, heavily sclerotized, and somewhat flattened.
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| 7. | The vagina includes a sclerotized part, which is a complex structure.
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| 8. | The head capsule is sclerotized anteriorly and deeply incised ventrally and often dorsolaterally.
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| 9. | The prothorax has sclerotized sternal spatula ( most ).
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| 10. | The anellus is small, flat, but notably sclerotized ( hardened ).
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