Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 748. Orthocladiinae 160 Parakiefferiella

748a. Anterior transverse band weak, the points smaller than those of the central part of the median point patch, often medially interrupted to leave a U-shaped emargination (057h.jpg). Tergites IV and V with the anterior, median and posterior patches amalgamated to produce a nearly continuous covering of points. Tergite VII without trace of the posterior transverse band.

Parakiefferiella bathophila

748b. Anterior transverse band strong, on tergite III (and usually II as well) with points stronger than those of the median and posterior bands, on IV as strong as, or nearly as strong as, those of the central part of the median patch, usually separated from these latter points by smaller points or a narrow gap (058b.jpg). Tergite VII usually with a few strong points just posterior to setae D5, being the remnants of the posterior transverse band.

Parakiefferiella scandica
Decision path