Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 629. Orthocladiinae 41 Euryhapsis

629a. Lateral setae of segments II-VI longer, over 100µm long. Apical toothed bands present on segments II-IV. (Thoracic horn coarsely toothed marginally and armed between, not conspicuously curved at apex. Anal macrosetae displaced forwards on the anal lobes.)

Euryhapsis pe3

629b. Lateral setae of segments II-VI small, 50-80µm long. Apical point bands present only on tergite II. (Thorax with a weak tubercular mound mid-dorsally close to suture. Frontal setae absent. All 4 dorsocentral setae closely approximated. Anal macrosetae displaced forwards on the anal lobes.)

Step 630. Orthocladiinae 42 Euryhapsis
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