Neboissomina philsuteri, Cartwright, David I., 2011

Cartwright, David I., 2011, Descriptions of Neboissomina, new genus and 6 new species of Ecnomidae from Australia (Trichoptera), Zootaxa 2736, pp. 17-30 : 24-29

Neboissomina philsuteri sp. nov.

Figs 21–23

Diagnosis. Neboissomina philsuteri is most similar to N. riyala in possessing inferior appendages which are fused to form a single large sub-rectangular plate, but it is distinguished by small differences in the inferior appendages, in lateral view not narrowed subapically, with a pair of small disto-lateral projections, in ventral view narrowed in basal 1/3.

Description. Head, body, and wings light brown, abdomen paler ventrally; wings similar to those of N. jardinei (Fig. 2), length of each forewing: male 3.0 mm, about 3.0 times width; length of each hind wing 3.2–3.3 times width. Wing venation: Each forewing with forks 2, 3, 4 and 5 present; fork 2 sessile, length 1.3–1.4 times length of fork 3; fork 3 with short footstalk, length of fork about 3.8 times length of footstalk, length of footstalk of fork 3 about same length as cross-vein m, cross-veins r-m and m nearly contiguous at fork 3, r-m and m separated by 0.4– 0.6 times length of cross-vein m; length of fork 5 about 1.7 times length of fork 4. Hind wings each with forks 2, 3 and 5 present; fork 2 sessile or with very short footstalk, when present footstalk of fork 2 about 0.2 times length of cross-vein r-m, fork 2 length 1.3–1.4 times length of fork 3.

Male. Tergum X membranous, with pair of long, slender dorsal processes, narrowly separated (Fig. 23). Superior appendages short and robust, in lateral view broad-based, slightly tapered distally, each with length about twice width (Fig. 21), in dorsal view, length about twice width, slightly dilated distally (Fig. 23); pair of long, slender processes (mesal processes of tergum X) ventro-basal of superior appendages. Phallus simple, tube-like, robust (Fig. 21). Inferior appendages slightly longer than superior appendages, fused, in ventral view large, sub-rectangular shield, truncate with shallow central notch distally, length about 1.5 times width, narrowed slightly in basal 1/ 3rd (Fig. 22), in lateral view length about 3.7 times width, with pair of small disto-lateral projections (Fig. 21).

Female. Unknown.

Holotype male (specimen CT-519 figured): Western Australia, Camp Ck, Mitchell Plateau, 14°50'S, 125°50'E, 13 Jul 1978, P. Suter ( NMV, T- 21077).

Etymology. Philsuteri - named for the collector, Dr Phil Suter.

Remarks. Only 1 specimen of Neboissomina philsuteri has been collected from the type locality in northern Western Australia (latitude 14°50'S).

FIGURES 1–5. Neboissomina spp. 1–2, Neboissomina jardinei , new species: 1, head and thorax, dorsal view; 2, right forewing and hind wing, dorsal view. 3–5, Neboissomina persona , new species, male genitalia: 3: left lateral view; 4, ventral view; 5, dorsal view. i.a. = inferior appendages; pha. = phallus; pro. X = mesal processes of tergum X; s.a. = superior appendages.

FIGURES 6–11. Neboissomina spp. male genitalia. 6–8, Neboissomina krokale (Neboiss) : 6, left lateral view; 7, ventral view; 8, dorsal view. 9–11, Neboissomina mida , new species: 9, left lateral view; 10, ventral view; 11, dorsal view.

FIGURES 12–17. Neboissomina spp. male genitalia. 12–14, Neboissomina jardinei , new species: 12, left lateral view; 13, ventral view; 14, dorsal view. 15–17, Neboissomina kuranya , new species: 15, left lateral view; 16, ventral view; 17, dorsal view.

FIGURES 18–26. Neboissomina spp. male genitalia. 18–20, Neboissomina riyala , new species: 18, left lateral view; 19, ventral view; 20, dorsal view. 21–23, Neboissomina philsuteri , new species: 21, left lateral view; 22, ventral view; 23, dorsal view.

FIGURES 24–28. Neboissomina spp. female genitalia in ventral view. 24, Neboissomina persona , new species. 25, Neboissomina mida , new species. 26, Neboissomina jardinei , new species. 27, Neboissomina kuranya , new species. 28, Neboissomina riyala , new species. s.viii = sternite viii.