Key: Step 650. Orthocladiinae 62 Trissocladius

650a. Three anal macrosetae (042c.jpg). Thoracic horn broad, apically rounded (042b.jpg).

Trissocladius brevipalpis

650b. Four or more anal macrosetae. Thoracic horn narrowed apically to pointed tip (150t.jpg).

Trissocladius pe1
Decision path