Key: Step 280. Chironomini 177 Stictochironomus

280a. Cephalic tubercles somewhat truncate apically bearing a long apical seta, longer than the tubercle (117g.jpg).

Stictochironomus pictulus

280b. Cephalic tubercles tapering to a pointed apex, the frontal seta short, the same length as, or shorter than, the tubercle (117e.jpg).

Stictochironomus maculipennis
Decision path