Orthocladiinae, Lenz, 1921

Cranston, Peter S., 2019, Identification guide to genera of aquatic larval Chironomidae (Diptera) of Australia and New Zealand, Zootaxa 4706 (1), pp. 71-102 : 85

Key to Orthocladiinae : Genera

1. Procercus apically bearing procercal setae (Fig. 10A); parapods distinct, with claws (Fig. 10A), may be fused at base...... 2

1' Procercus absent, parapods may be reduced, absent or fused (Fig. 10B), claws often absent.......................... 31

2(1) Ventromental plate well developed, extending beyond lateral margin of outermost tooth of mentum (Fig. 10C)........... 3

2’ Ventromental plate weaker to indistinguishable, not extending beyond lateral margin of outermost mental tooth (Fig. 10D) (however, may extend posterolateral to darkened base of outermost tooth)....................................... 11