Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 776. Orthocladiinae 188

776a. Tergites VI/VII-VIII with a median more or less circular patch of spinules best developed on segment VIII. (Teeth of the posterior transverse row elongate and separate from each other.)

Step 777. Orthocladiinae 189 Thienemannia

776b. Tergites VI-VIII without a median circular patch of spinules.

Step 779. Orthocladiinae 191 Parachaetocladius
Decision path