Chironomidae Exuviae
MENU
Chironomidae Exuviae
Key: Step 366. Tanytarsini 9 Stempellina

366a. Segment VIII with 4 lateral taeniae. Thoracic horn with the extreme base swollen, thereafter long and narrow (129e.jpg). Thorax anteriorly thickly set with elongate spinous teeth.

Stempellina subglabripennis

366b. Segment VIII with 3 lateral taeniae. Thoracic horn broad at base then gradually tapered to tip (129f.jpg). Thorax anteriorly thickly set with short conical teeth.

Step 367. Tanytarsini 10 Stempellina
Decision path