Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 753. Orthocladiinae 165 Limnophyes

753a. Segment VIII with 4 or 5 long lateral setae, fourth seta longer than 50µm, OR longest posterior spines of tergites IV-VI longer than 60µm.

Step 754. Orthocladiinae 166 Limnophyes

753b. If segment VIII with 5 lateral setae, fourth seta shorter than 50µm AND posterior spines shorter than 60µm.

Step 764. Orthocladiinae 176 Limnophyes
Decision path