Ecnomina thinotes Neboiss

Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), Zootaxa 1774 (1), pp. 1-76 : 62

publication ID	https://doi.org/ 10.11646/zootaxa.1774.1.1
DOI	https://doi.org/10.5281/zenodo.5124231
persistent identifier	https://treatment.plazi.org/id/0749822F-FFD6-6007-6AE7-CA72C8F3AADA
treatment provided by	Felipe
scientific name	Ecnomina thinotes Neboiss
status

Treatment

Ecnomina thinotes Neboiss View in CoL

Figs 141–143 View FIGURES 138–143 , 189 View FIGURES 184–195

Ecnomina thinotes Neboiss, 1978: 827 View in CoL , figs 1–3. — Neboiss 1986: 154.

Diagnosis. Ecnomina thinotes is distinguished from others in the genus by the superior appendages, which have a pair of short, robust mesal processes near the middle and the pair of relatively robust dorsal processes on tergum X.

Description. Head, body and wings brown, abdomen paler ventrally; wings similar to E. legula ( Fig. 3 View FIGURES 1–6 ). Forewing length about 2.9–3.2 times width: male 3.1–4.2 mm, female 3.8–4.6 mm. Forewing fork 2 relatively long, sessile or with short footstalk, footstalk length up to 0.7 times length cross-vein r-m, length fork about 1.1–1.5 times length of fork 3; fork 3 relatively long, with short footstalk, fork ranges between 3–9 times length footstalk, footstalk length between 0.7–1.7 times length cross-vein m, r-m and m nearly contiguous at fork 3, r-m and m separated by about 0.3–0.7 times length of cross-vein m; fork 4 shorter than fork 3; fork 5 long, length about 1.8 times length of fork 4. Hindwing length about 3.3 times width, fork 2 sessile, length about 1.2–1.6 times length of fork 3.

Male. (Revised after Neboiss 1978). Tergum X membranous, fused basally, with one pair of relatively robust dorsal processes ( Fig. 143 View FIGURES 138–143 ). Superior appendages in lateral view, sub-rectangular, length about 4 times width ( Fig. 141 View FIGURES 138–143 ); in dorsal view, length about 6 times width, with a group of relatively long spines distally and with a pair of short, robust mesal processes near middle ( Fig. 143 View FIGURES 138–143 ). Phallus simple, tube-like ( Fig. 141 View FIGURES 138–143 ). Inferior appendages short, fused; in ventral view, length about same as width, rounded laterally, with slightly crenulated margin ( Fig. 142 View FIGURES 138–143 ); in lateral view, robust, length about twice width ( Fig. 141 View FIGURES 138–143 ).

Female. Genitalia with a single mesal process on sternite VIII, broad based, narrowed in distal half; segment IX relatively long and slender, tapered slightly distally, segment X relatively short ( Fig. 189 View FIGURES 184–195 ).

Material examined: Queensland. Holotype male. Fraser Island, Lake Wabby , 7 May 1975 , H. Burton ( NMV, T-5699). Paratypes. Queensland. 2 females (specimen PT-554 figured), collected with holotype ( NMV); 1 male, L. Wabby, south end, Fraser Is. , 14 Dec 1975 , H. Burton; 5 males (specimen PT-546 figured), 1 female, E of L. Bowarrady, Fraser Is. , 2-3 Dec 1975 , A. Slater and G. Thompson; 1 male, Fraser Is., Yidney scrub, 3-4 Dec 1975 , A. Slater and G. Thompson. Other material. Queensland. 1 female, Coombroo Lake, Fraser Isl. , at light, 21 Mar 1979 , K.J. Lambkin; 1 female, nr Wabby Lake, Fraser Isl. , 25 Nov 1976 , at light, G. Thompson, P. Webb and M. R. Rice; 1 male (genitalia missing?), Blue Lake, North Stradbroke Is. , 11 Nov 1973 , coll.?; 2 males, 26 females, Coondoo Ck, 30 km NE of Gympie, Toolara State Forest , MV lt, 28 Oct 1980 , A.N.; 1 male, Seary’s Ck, Cooloola N.P, Rainbow Beach , 25°58'S, 153°04'E, 9 Feb 1987 GoogleMaps , G. Theischinger. New South Wales. 1 male, Kangaroo Valley , 22 Mar 1961 , E.F. Riek ( ANIC). Victoria. 2 males, L. Barracoota, 28 Jan 1975 , A.N.; 1 male, 2 females, Five Mile Rd swamp, Wilsons Promontory , 9 Dec 1986 , A.N.; 10 males, 3 females, Miranda Ck, Wilsons Promontory , 38°56'S, 146°28'E, 6 Jan 1986 GoogleMaps , A.N.; 8 males, 11 females, same loc. and coll., 19 Jan 1987. South Australia. 2 males, 3 females, Rocky R., deep lagoon, Kangaroo Is., 19 Dec 1980 , A.W.; 1 male, Rocky R. at bridge, 20 Dec 1980 , A.W.

Remarks. Ecnomina thinotes appears to have a widespread but patchy distribution. It has been collected from coastal south-eastern Queensland including several islands, one site in south-eastern New South Wales, three sites in eastern and southern Victoria and from Kangaroo Island off southern South Australia (latitudinal range 25°10'- 38°56'S). Neboiss’s (1978) figures have been redrawn to allow direct comparisons and to accompany the description that is revised in light of new interpretations of Ecnomina genitalic and wing structures.