Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 212. Chironomini 109 Chironomus

212a. Two dorsal taeniae on each anal lobe (the anterior may be more setaceous than taeniate). On tergite IV seta D3 lies above or internal to seta D4 (102c.jpg). Sternite VI with the anterior shagreen points in distinct rows which are arranged in a reticulate pattern (102d.jpg).

Chironomus lacunarius

212b. One dorsal taenia on each anal lobe. On tergite IV seta D3 lies external to seta D4 (102a.jpg). Sternite VI with anterior shagreen rather disorganized, not forming a distinct pattern (102b.jpg).

Chironomus commutatus
Decision path