Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 85. Tanypodinae 71

85a. Atrium of thoracic horn narrow and with exceedingly thickened wall, joined to the plastron plate by a twisted neck (022f.jpg). (Rim absent. Thorax smooth.)

Step 86. Tanypodinae 72 Xenopelopia

85b. Atrium of thoracic horn thin-walled, joined to the plastron plate by a short straight neck.

Step 87. Tanypodinae 73 Schineriella
Decision path