Chironomidae Exuviae
MENU
Chironomidae Exuviae
Key: Step 524. Couplet 8 to Subfamilies

524a. Fore and mid leg sheaths with tarsal sections extended straight along mid-line between wing sheaths, hind legs recurved under wing sheaths.

Subfamily Diamesinae.

Step 525. Diamesinae 1

524b. Lateral fringe on anal lobes and large thoracic horn present. Spines on abdominal terga (except male tergum 9 in Odontomesa) absent. Macrosetae either absent and then 2 pairs of dorsal setae on anal lobes present, or 3 or 5 macrosetae on anal lobe and then 2 pairs of weak dorsal setae present, or 4-5 anal macrosetae present and then dorsal setae absent.

Subfamily Prodiamesinae.

Step 583. Prodiamesinae 1

524c. Forementioned combination of characters absent.

Subfamily Orthocladiinae.

Step 589. Orthocladiinae 1 Metriocnemus
Decision path