Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 851. Orthocladiinae 262 Orthocladius

851a. Thoracic horn leaf-like, with a serrated edge (075f.jpg). (Tergites III-VII with a median transverse pair of more or less circular point patches, sometimes indicated on VIII, set in a field of shagreen that extends laterally to the tergite margins and posteriorly to the posterior transverse point bands (075g.jpg). Note Or262)
075-2.jpg species overview

Orthocladius consobrinus

851b. Thoracic horn elongate oval, smooth or nearly so. (Median point patches transverse, present on tergites II/III-VI/VII. Shagreen limited in distribution on abdominal tergites.)

Step 852. Orthocladiinae 263 Orthocladius
Decision path