Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 853. Orthocladiinae 264 Orthocladius

853a. Lateral points of the posterior transverse bands of tergites II and III obviously longer than the median (074c.jpg). Posterior transverse point bands present on tergites II-VII, absent on VIII. Thoracic horn 170-225µm long (074b.jpg). All three apical setae of the anal lobes of similar length and thickness (074d.jpg).
074-1.jpg species overview

Orthocladius fuscimanus

853b. All points in the posterior transverse bands of tergites II and III similar in size (074f.jpg). Posterior transverse band of tergite VIII usually present. Thoracic horn 85-135µm long. One of the apical setae of the anal lobes shorter and thinner than the other two (074g.jpg).

Step 854. Orthocladiinae 265 Orthocladius
Decision path