Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 529. Diamesinae 5 Sympotthastia

529a. 2nd dorsocentral seta much closer to the 1st than to the 3rd: distance between 1st and 2nd setae less than 1/2 the distance between the 2nd and 3rd setae; the 1st and 2nd setae about the same length. Small points of tergite II extensive, usually spreading from the anterior margin as far as the posterior transverse band.
026-1.jpg species overview

Sympotthastia zavreli

529b. Dorsocentral setae nearly equidistant: distance between the 1st and 2nd setae over 3/4ths the distance between the 2nd and 3rd; 2nd seta less than half the length of the 1st. Small points of tergite II much less extensive, spreading at most to the posterior adhesion marks.

Step 530. Diamesinae 6 Sympotthastia
Decision path