Ecnomina viatica Neboiss
Creators: name: Cartwright, David I.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Ecnomidae
Ecnomina
Ecnomina viatica

description: Ecnomina viatica Neboiss   
Figs 99–101, 179  
 Ecnomina viatica Neboiss, 1982: 293, figs 32–34, 42, 43, 48. — Neboiss 1986: 153.   
 Diagnosis. Ecnomina viatica is distinguished by the dorso-lateral looped flange associated with the phallus.   
 Description. (Revised after Neboiss 1982). Head, body and wings light brown, abdomen paler ventrally; wings (fig. 48, Neboiss 1982) similar to E. legula (Fig. 3). Forewing length about 2.9–3.3 times width: male 3.2–3.6 mm, female 3.2–3.8 mm. Forewing fork 2 relatively long, sessile, length about 1.1–1.2 times length of fork 3; fork 3 relatively long, sessile or with short footstalk, length fork greater than 10 times length footstalk, footstalk length about 0–0.6 times length cross-vein m, r-m and m not contiguous at fork 3 by about 0.3 times length cross-vein m; fork 4 shorter than fork 3; fork 5 length about 1.3 times length of fork 4. Hindwing length about 3.3–3.6 times width, fork 2 sessile, length about 1.2–1.3 times length of fork 3.   
Male. Tergum X membranous, with pair of processes, hooked distally (Fig. 101). Superior appendages in lateral view, sub triangular, length about 2.5 times width, tapered in distal half, with a group of three stout spines baso-ventral to base of superior appendages (Fig. 99); in dorsal view, relatively robust, length about 2.5 times width, apices converging (Fig. 101). Phallus generally tube-like with associated distinctive dorso-lateral looped flange; with a single, small, down curved process (phallic guide) arising from near the base of the inferior appendages (Fig. 99). Inferior appendages in ventral view, fused, sub-rectangular, with pair of rounded disto-lateral lobes (Fig. 100); in lateral view, broad basally, tapered slightly distally (Fig. 99).  
Female. Genitalia with a single relatively elongate and robust mesal process on sternite VIII, process with a rounded apex; segment IX relatively long, tapered slightly distally, segment X relatively short and segments IX and X relatively slender and with several pairs of hairs (Fig. 179).  
 Material examined: Western Australia. Holotype male, Margaret River, Rapids crossing, 25 km S of Busselton, 22 Nov 1978, A.N. (NMV, T- 6363). Paratypes, 19 males (specimen PT-629 figured), 25 females (specimen PT-725 figured), collected with holotype (NMV). Other material. 50 males, 30 females, 24 km NW of Walpole, 15 Nov 1958, E. F. Riek (ANIC).   
 Remarks. Ecnomina viatica is recorded from two sites from south-western Australia (latitudinal range 33°58'S- 34°57'S). Neboiss’s (1982) 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.
description: Published as part of Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), pp. 1-76 in Zootaxa 1774 (1) on pages 47-48, DOI: 10.11646/zootaxa.1774.1.1, http://zenodo.org/record/5124133