Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 751. Orthocladiinae 163

751a. Anal macrosetae of anal lobes long, thin and usually curved. Anal lobes smooth. Thoracic horn reduced to a small tubercle. (Thorax more or less smooth. Tergites generally covered with small points, larger anteriorly.)

Step 752. Orthocladiinae 164 Paralimnophyes

751b. Anal macrosetae short, thorn-like, branched, or reduced to strong points. Anal lobes armed with points. Thoracic horn absent.

Step 768. Orthocladiinae 180 Chaetocladius
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