Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 797. Orthocladiinae 209 Chaetocladius

797a. The 2nd lateral seta of segment IV over half the width of the 1st and 3rd, and about 1/3rd the length of the segment.

Chaetocladius suecicus

797b. The 2nd lateral seta of segment IV much narrower than the 1st and 3rd, and only about 1/5th the length of the segment.

Step 798. Orthocladiinae 210 Chaetocladius
Decision path