Chironomidae Exuviae: Dichotomous key: step 294: "Chironomini 191 Sergentia"

Key: Step 294. Chironomini 191 Sergentia

294a. Anal lobes with few taeniae (22-42, m=31.6, n=49), the median taeniae largest and more widely separated.

Sergentia pe1

294b. Anal lobes with taeniae all similar in size and more or less evenly spaced over the middle 2/3rds of the lobes.

Step 295. Chironomini 192 Sergentia

Decision path