Oecetis kateae, Wells, 2006

Wells, Alice, 2006, A review of Australian long-horned caddisflies in the Oecetis pechana-group (Trichoptera: Leptoceridae), with descriptions of thirteen new species, Memoirs of Museum Victoria 63 (2), pp. 107-128 : 116-117

publication ID	https://doi.org/ 10.24199/j.mmv.2006.63.13
DOI	https://doi.org/10.5281/zenodo.8067249
persistent identifier	https://treatment.plazi.org/id/03E88783-2806-4F47-FCCD-FBE2FDA7FD9C
treatment provided by	Felipe
scientific name	Oecetis kateae
status	sp. nov.

Treatment

Oecetis kateae sp. nov.

Figures 21–24, 63

Material examined. Holotype. Male, NT, 12°40'S, 132°53'E, Jabiru , Town Lake, 16 Feb 1991, Wells ( ANIC). GoogleMaps

Paratypes. NT: 2 males, 14 females, same data as for holotype ( NTM, ANIC) GoogleMaps ; 22 males, 38 females, 12°42'S, 130°58'E, Berry Springs , 9 Apr 1991, A. Wells and M. Horak ( NTM, NMV) GoogleMaps ; 14 males, 23 females, 13°03'S, 130°47'E, Litchfield National Park , Florence Falls, 6 Jun 1991, Wells and Webber ( ANIC) GoogleMaps .

Other material. Ninety-seven samples from NT, Qld, NW WA and NE NSW.

Diagnosis. Recognised by inferior appendages more slender and smoothly curved than those of O. pechana and O. walpolica , and by the ventrally arched paramere of the phallus.

Description. Male. Wings with short hair, darkly pigmented hair and membrane at anastomoses of veins and crossveins; forewing with a single large patch of scales. Forewing length, 5.1–5.9 mm. Abdominal tergites II–IV darkly sclerotised, segment IX narrow, almost a regular annulus, dorsally slightly pointed apico-mesially, segment X narrow, tapered towards apex. Genitalia, see figs 21–24. Pre-anal appendages short, wider than long. Inferior appendages stouter basally than distally but almost C-shaped in ventral view, in lateral view broad-based, slender, upturned distally, basi-dorsal pouch present. Phallus about length of 3 abdominal segments, membranous ventral phallotheca small, not down-turned, paramere arched ventrally.

Distribution. A widely distributed species that is often abundant in light trap samples from the Kimberley of WA, through the north of the NT to northern Qld, and south east to the border of Qld and NSW.

Remarks. Superficially males of this species resemble those of O. walpolica save that the inferior appendages are distally more slender, but close examination of the male genitalia confirms the unique state of the paramere of the phallus, arching in the opposite direction from that of O. walpolica , and far less strongly curved.

Etymology. Named for Kate Humphrey.