Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 656. Orthocladiinae 68

656a. Tergites without point patches medially, OR, if median patches are present on segments III-V, then the anterior anal macroseta is situated in the anterior half of the anal lobes.

Step 657. Orthocladiinae 69 Paratrissocladius

656b. Tergites with median point patches, single or paired. The 3 anal macrosetae situated apically on the anal lobes.

Step 663. Orthocladiinae 75
Decision path