Oecetis species

Wells, Alice, 2004, The long-horned caddisfly genus Oecetis (Trichoptera: Leptoceridae) in Australia: two new species groups and 17 new species, Memoirs of Museum Victoria 61 (1), pp. 85-110 : 87

Key to males of Oecetis species groups in Australia

1. Abdominal tergite VIII sculptured, expanded and extended distally, forming shield over terminal abdominal segments and genitalia......................................... reticulata -group (see Neboiss, 1989)

— Abdominal tergite VIII unmodified............... 2

2. Wings with veins strongly pronounced, fork 1 without a footstalk (sessile) (Figs 91, 94)....... longiterga -group

— Wings with veins normal, not particularly well pronounced, fork 1 with or without footstalk (Figs 1, 30, 53) .......................................... 3

3. Phallus simple, lacking parameres (Figs 3, 38, 72)............................. laustra -group (see below)

— Phallus with one or more internal or external parameres or spines..................................... 4

4. Forewing fork 1 sessile, wing lamina often bearing patches of scales (androconia); phallus usually with a single internal paramere or spine...... pechana -group

— Forewing fork 1 stalked, wing never bearing patches of scales; phallus with one or more external parameres..................... complexa -group (see Wells, 2001)