Major Groups | Insecta (insects) | Hemiptera (bugs) | Gerridae Note: Key from Andersen & Weir 2004 |
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1. 1st abdominal sternum distinctly visible (M = metasternum); bucculae (B) distinctly produced anteriorly; male and female terminalia (T) greatly prolonged
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-1st abdominal sternum fused with metasternum (M1); bucculae not produced; male and female terminalia (T) not greatly prolonged
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