Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 657. Orthocladiinae 69 Paratrissocladius

657a. Tergites III-VI with extensive shagreen (042f.jpg). Hook row II absent, its position occupied by a transverse band of anteriorly directed spinules, which may, however, be folded under the posterior edge of the tergite. (Pedes spurii B present on segment II.) 042-1.jpg species overview

Paratrissocladius excerptus

657b. If tergites III-VI have extensive shagreen, segment II has a postero-median pad of strong hooks.

Step 658. Orthocladiinae 70
Decision path