Key: Step 520. Tanytarsini 161 Micropsectra

520a. Segment IV with 3 lateral taeniae. Shagreen of tergite III absent from between the spine bands (146j.jpg).

Micropsectra recurvata

520b. Segment IV with only 2 lateral taeniae. Shagreen of tergite III also present anteriorly between the spine bands.

Step 523. Tanytarsini 164 Micropsectra
Decision path