Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 722. Orthocladiinae 134 Eukiefferiella

722a. Apical filament of thoracic horn shorter than base, the distal half of the base with obvious short spinules (051d.jpg). Sternite VII without a posterior transverse row of hooks.

Eukiefferiella ilkleyensis

722b. Apical filament of thoracic horn about as long as base, base usually bare, occasionally with a few spinules seen only with difficulty; horn easily broken off, usually missing. Sternite VII at the posterior edge usually with a transverse row of hooks.

Eukiefferiella devonica
Decision path