New Australian species of Oecetis allied to O. complexa Kimmins (Trichoptera: Leptoceridae)

Abstract

Seven new species of long-horned caddisfly together with Oecetis complexa Kimmins form a discrete set in the Australian Oecetis fauna, here called the complexa-group, based on wings with a long footstalk on Fork 1, male inferior appendages four-lobed, and phallus with paired spiny parameres. Characteristics of this group appear to conflict with the placement of Oecetis complexa in the most recent subgeneric and species group classification of world Oecetis.

The long-horned caddisfly genus Oecetis (Trichoptera: Leptoceridae) in Australia: two new species groups and 17 new species

“…Members of the laustra-group occur in all Australian states and territories, and tend to be more or less peripherally distributed on the mainland; several species are found in Tasmania and one is described from Lord Howe Island. Some species appear to be localised, and others to have disjunct distributions (see Table 1); similar patterns were reported for complexa-group species (Wells, 2000). Fifteen laustra-group species are known only from northern Australia, and the richest diversity -16 species -is recorded for Queensland (see Table 1), with most records being from along the eastern seaboard; four of these species have been collected from northern Queensland only, and one is known from Queensland and New Guinea.…”

“…Males of the reticulata-group (Neboiss, 1989), have an amour-like, sculptured dorsal plate formed by the extension of abdominal tergite VIII over the terminal segments of the abdomen. In the complexa-group (Wells, 2000), males are characterised by external spiny processes or parameres associated with the phallus, and forewing fork 1 with a footstalk. Here, two further groups are recognised, the laustra-and longitergagroups.…”

A review of Australian long-horned caddisflies in the Oecetis pechana-group (Trichoptera: Leptoceridae), with descriptions of thirteen new species

“…Species of Oecetis in the fauna of New Zealand, New Guinea and Java also share the synapomorphies of these pechanagroup members. This is the fi nal work in a series of papers (Neboiss, 1989;Wells, 2000Wells, , 2004 revising Australian species of Oecetis, and raises to 74 the number of species recorded in this genus in Australia. The key provided by Wells, 2004 to distinguish males of the fi ve Oecetis groups recognised for Australia is reproduced here with slight modifi cations, and a key to males of pechana-group species is given.…”

Three new species and new distributional records of Oecetis McLachlan 1877 (Trichoptera: Leptoceridae: Leptocerinae) from Brazil

“…In the Neotropical Region, 34 species occur throughout the Brazilian subregion, but it has not been recorded from the Chilean subregion (Flint et al 1999;Rueda Martín et al 2011). Wells (2000Wells ( , 2004Wells ( , 2006 provided comprehensive studies of the Australian Oecetis species. More recently, Rueda Martín et al (2011) reviewed the Oecetis fauna of Bolivia and northwestern Argentina and included an identification key for Neotropical species.…”