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

description: <i>Ecnomina concava</i> sp. nov. Figs 159–161, 192 Diagnosis. <i>Ecnomina concava</i> closely resembles other species in the group and it is distinguished by tergum X with a pair of processes which are sub triangular, reaching half the length of the superior appendages and the inferior appendages with slightly elongate meso-distal excision. Description. Head, body and wings light brown to fawn, abdomen paler ventrally; wings similar to <i>E. merki</i> (Fig. 172). Forewing length about 2.9–3.1 times width: male 2.6–2.8 mm, female 2.7 mm. Forewing fork 2 relatively long, with short footstalk, length footstalk about 0.2–0.8 times length cross-vein r-m, length fork about 1.3–1.7 times length of fork 3; fork 3 relatively short, with long footstalk, length fork about 1.6–2.4 times length footstalk, footstalk length about 1.9–2.2 times length cross-vein m, r-m and m nearly contiguous at footstalk fork 3, r-m and m separated by about 0–1.0 times length of cross-vein m; fork 4 slightly shorter than fork 3; fork 5 long, length about twice length of fork 4. Hindwing length about 2.9 times width, fork 2 with short footstalk, length footstalk about 0.6–0.7 times length cross-vein r-m, fork length about 1.4–1.6 times length of fork 3. Male Tergum X membranous, with one pair of relatively long, sub triangular, robust dorsal processes, narrowly separated, slightly crenulated meso-distally (Fig. 161). Superior appendages in lateral view, length about 3.5 times width (Fig. 159); in dorsal view, length about 3 times width, dilated slightly and with several spines distally (Fig. 161). Phallus simple, tube-like, slender (Fig. 159). Inferior appendages short; in ventral view, fused in basal third, dilated and truncated distally, with elongate ovoid excision meso-distally, length about two thirds width (Fig. 160); in lateral view, dilated slightly distally, length about 2.5 times width (Fig. 159). Female. Genitalia with a single short, broadbased, slender digitiform mesal process on sternite VIII; segment IX relatively long, tapered slightly distally, segment X relatively short and segments IX and X relatively slender (Fig. 192). <b>Holotype male</b>: Northern Territory, SAR, Rock Hole Ck (about 13°29'S, 132°30'E), lt tr., Nov 1988, P. Dostine (NMV, T-19865). <b>Paratypes</b>: Northern Territory. 3 males (specimen CT-513 figured), collected with holotype; 1 female (specimen CT-517 figured), ARRS Radon Springs, 12°45'S, 132°55'E, 2 V lt tr., 13–14 Apr 1989, P. Suter and A.W. (NMV). Etymology. <i>Concava</i> - Latin word for hollow, concave (inferior appendages). Remarks. Four males of <i>Ecnomina concava</i> have been collected from the two localities in the South Alligator River Region of the Northern Territory (latitudinal range 12°45' - 13°29'S).
description: Published as part of <i>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)</i> on page 68, DOI: 10.11646/zootaxa.1774.1.1, http://zenodo.org/record/5124133