Neboissomina jardinei, 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 : 22

Neboissomina jardinei sp. nov.

Figs 1, 2, 12–14, 26

Diagnosis. Neboissomina jardinei is similar to N. kuranya and 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 ventral view with a small central notch distally, and in lateral view sub quadrate, truncate distally.

Description. Head, body, and wings light brown, abdomen paler ventrally; wings typical for the genus (Fig. 2), length of each forewing: male 2.3–2.5 mm, female 2.4–2.8 mm; length 2.9–3.1 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 long, sessile, length 1.5–1.7 times length of fork 3; fork 3 with long footstalk, fork 3 length 1.6–1.7 times length of footstalk, length of footstalk 2.3–2.6 times length of cross-vein m, cross-veins r-m and m nearly contiguous at fork 3, r-m and m separated by 0.0–0.2 times length of cross-vein m; fork 5 long, length about 1.7 times length of fork 4. Hind wings each with forks 2, 3 and fork 5 present; fork 2 with short footstalk, length of footstalk 0.4–1.3 times length of cross-vein r-m, fork 2 length 1.2–1.6 times length of fork 3.

Male. Tergum X membranous, with 1 pair of long, slender dorsal processes, widely separated at base, converging near middle, and diverging slightly distally (Fig. 14). Superior appendages short and robust, in lateral view length about twice width (Fig. 12), in dorsal view length about twice width, slightly dilated distally (Fig. 14); pair of long, dorso-ventrally flattened (depressed) processes (mesal processes of tergum X) ventro-basal of superior appendages. Phallus simple, tube-like; with pair of long, slender processes (phallic guides) arising from near base of inferior appendages (Fig. 12). Inferior appendages longer than superior appendages, fused, in ventral view large, sub-rectangular shield, truncate distally, length about 1.4 times width (Fig. 13), in lateral view sub-rectangular, length about 3 times width, truncate distally (Fig. 12).

Female. Genitalia with pair of robust obliquely truncate lobes on sternite VIII; segment X robust (Fig. 26).

Holotype male: Queensland, Canal Ck u/s jn Eliot Ck, 11°23'S, 142°25'E, 6 Feb 1992, Cartwright and Wells ( NMV, T- 21020).

Paratypes: Queensland. 20 males (specimen CT-424 figured), 20 females (specimen CT-425 figured), collected with holotype ( NMV).

Other material examined: Queensland. 8 males, 40 females, collected with holotype; 41 males, 25 females, Eliot Ck u/s jn Canal Ck, 11°23'S, 142°25'E, 6 Feb 1992, Cartwright and Wells; 5 males, 21 females, Dulhunty R., Telegraph Crossing, 11°50'S, 142°30'E, 8–9 Feb 1992, Cartwright and Wells; 2 males, 20 females, same loc. and coll., 10 Feb 1992 ( NMV).

Etymology. Jardinei - named after Douglas Jardine (North Queensland explorer).

Remarks. Many specimens of Neboissomina jardinei have been collected from 3 localities on Cape York Peninsula, northern Queensland (latitudinal range 11°23'– 11°50'S).