A review of Australian long-horned caddisflies in the Oecetis pechana-group (Trichoptera: Leptoceridae), with descriptions of thirteen new species Author Wells, Alice text Memoirs of Museum Victoria 2006 2006-12-31 63 2 107 128 https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-63-issue-2-2006/pages-107-128/ journal article 53804 10.24199/j.mmv.2006.63.13 62340dea-37ea-4baf-8d2e-d253a9020018 1447-2554 8064969 Key to males of Oecetis species groups in Australia [Modified from Wells, 2004 ] 1. Abdominal tergite VIII sculptured, expanded and extended distally, forming shield over terminal abdominal segments and genitalia reticulata -group (see Neboiss, 1989: fig. 2) — Abdominal tergite VIII unmodified 2 2. Wings with veins strongly pronounced, fork 1 without a footstalk (sessile) longiterga -group (see Wells, 2004 : figs 91, 94) — Wings with veins not strongly pronounced, fork 1 with or without footstalk 3 3. Phallus simple, lacking parameres laustra -group (see Wells, 2004 : figs 18, 46, 59) — Phallus with 1 or more internal or external parameres or spines 4 4. Forewingfork 1 sessile, winglaminaoftenbearingpatches of scales (androconia) (fig. 1); phallus usually with a single internal paramere or spine, never with more than 1 spine associated with the phallus (e.g. figs 3 8) pechana -group (see below) — Forewing fork 1 stalked, wing never bearing patches of scales; phallus with 1 or more external parameres (spines of the phallotheca) complexa -group (see Wells, 2000 : figs 25, 26–33)