Ecnomina kepin, Cartwright, 2008

Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), Zootaxa 1774 (1), pp. 1-76 : 54-55

Ecnomina kepin sp. nov.

Figs 120–122

Diagnosis. Ecnomina kepin shares with E. manicula the character of two pairs of relatively slender dorsal processes on tergum X, but differs in that the margin of the fused inferior appendages is entire and without distolateral processes.

Description. Head and body brown, wings light brown, abdomen paler ventrally; wings similar to E. legula ( Fig. 3 ). Forewing length about 2.7–2.9 times width: male 4.3–4.4 mm. Forewing fork 2 relatively long, sessile, length about 1.1–1.2 times length of fork 3; fork 3 relatively long, with very short footstalk, fork between 0.2–0.4 times length footstalk, footstalk length greater than 10 times length cross-vein m, r-m and m not contiguous by about 0.5–0.6 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 times width, fork 2 sessile, length about 1.3–1.5 times length of fork 3.

Male. Tergum X membranous, short with two pairs of slender processes mesally ( Fig. 122 ). Superior appendages laterally compressed; in lateral view robust, length about 2.5 times width, narrowed in distal third ( Fig. 120 ); in dorsal view, relatively slender, length about 4.5 times width, slightly incurved distally, with a robust mesal spine subapically ( Fig. 122 ). Phallus simple, tube-like, relatively slender ( Fig. 120 ). Inferior appendages robust, strongly dorso-ventrally flattened; in ventral view fused to form a single broadly triangular plate, length about same as width ( Fig. 121 ); in lateral view, length about 3 times width ( Fig. 120 ).

Female. Unknown.

Holotype male: Victoria, Noorinbee (about 37°26'S, 149°13'E), 23 Nov 1965, A.N. ( NMV, T-19716).

Paratype: Victoria. 1 male (specimen CT-458 figured), Olive Ck, Lind Nat. Pk, 18 Dec 1976, A.N. ( NMV) .

Other material examined: New South Wales. 1 male, Brown Mt, 18 Jan 1961, E.F. Riek ( ANIC) .

Etymology. Kepin- Victorian Aboriginal word for one (fused inferior appendages).

Remarks. Ecnomina kepin is recorded from three sites in eastern Victoria and south-eastern New South Wales (latitudinal range 36°30' - 37°26'S).

Figures

FIGURES 114–122. Ecnomina spp. Male genitalia in lateral, ventral and dorsal views. 114–116: Ecnomina cohibilis Neboiss. 117–119: Ecnomina chorisis Neboiss. 120–122: Ecnomina kepin sp. nov.

FIGURES 1–6. 1–2. Daternomina irrorata (Kimmins). 1: Forewing and hindwing. 2: Head and thorax, dorsal view. 3– 6. Ecnomina spp. 3. Ecnomina legula Neboiss, forewing and hindwing. 4–5. Ecnomina scutica sp. nov. 4: Head and thorax, dorsal view. 5: Wings, section of forewing and hindwing. 6. Ecnomina spinosa Kimmins, head and thorax, dorsal view. n., nygma; o.w, occipital wart.