Wellsomina jalgoodoo, Cartwright, David I., 2010

Cartwright, David I., 2010, Descriptions of 2 new genera and 13 new species of caddisflies from Australia (Trichoptera: Ecnomidae), Zootaxa 2415, pp. 1-21 : 16-17

Wellsomina jalgoodoo sp. nov.

Figs 36 –38, 51

Diagnosis. This species can be identified by the superior appendages with mesally pointed apices and each with 3 or 4 long spiny setae subapically.

Description. Head, body and wings light brown; wings similar to those of W. stuarti ( Fig. 7), length of forewing: male 2.7–3.1 mm, female 3.0– 3.1 mm. Wing venation: forewing length about 3.5–4 times width, each with forks 2, 3, 4 and 5 present; fork 2 relatively short, fork 2 footstalk relatively long, length about 2.4 – 3.0 times length of cross-vein r -m, length of fork 2 about 1.3–1.6 times length of fork 3; fork 3 very short, length of fork 3 about 0.7 –1.0 times length of footstalk, footstalk of fork 3 very long, length about 3.9–4.8 times length of cross-vein m. Hind wing length about 4.5 times width, each with forks 2, 3 and fork 5 present, all short; fork 2 footstalk relatively long, length about 3.0–4.0 times length of cross-vein r -m.

Male. Tergum X membranous with 2 rounded lobes. Superior appendages laterally compressed, in dorsal view each with mesally pointed apex and 3 or 4 mesally directed, long, spiny setae subapically ( Fig. 38); in lateral view robust, broad basally, tapered distally. Phallus simple, tube-like ( Fig. 36). Inferior appendages depressed, in ventral view fused in basal 2 / 3 rds, pair of digitiform processes distally separated by V-shape notch ( Fig. 37); in lateral view slender, narrowed slightly in the distal 1 / 4 th ( Fig. 36).

Female. Genitalia with abdominal sternite VIII relatively broad, basally with slender digitiform mesal process; segment IX relatively short, broad-based, tapered slightly in distal 1 / 4 th, segment X relatively long, slender with 1 pair of small cerci ( Fig. 51).

Holotype male: Western Australia, Barnett R. Gorge, Barnett Stn (about 16 ° 31 'S, 126 °08'E), 1 Oct 1979, JB ( NMV, T- 20833).

Paratypes: Western Australia, 1 male (specimen CT- 472 figured), collected with holotype; 1 male, 1 female (specimen CT- 518 figured), Chamberlain Pool, El Quaestro Stn, 15 ° 58 'S, 127 ° 56 'E, 26 Aug 1996, I. Edwards; 2 males, Morgan R., Theda H.S., Kimberley, 28 Sep 1979, JB; 1 male, King Edward R., 14 ° 52 ' 57 ''S, 126 ° 12 '08''E, 4-5 May 1992, P.S. Cranston ( ANIC); 1 male, Lone Dingo Ck, trib. of Mitchell R., Mitchell Plateau, 12 Feb 1979, JEB.; 2 males, 1 female, Drysdale R., headwaters, 30 km NW Mt Elizabeth H.S., 30 Sep 1979, JB (all NMV); 7 males, Charnley R., 2 km SW Rolly Hill, CALM site 25 /2, 16° 22 'S, 125 ° 12 'E, 16– 20 Jun 1988, I.D. Naumann ( ANIC).

Other material examined: Western Australia. 6 females, Chamberlain Pool, El Quaestro Stn, 15 ° 58 'S, 127 ° 56 'E, 26 Aug 1996, I. Edwards.

Etymology. Jalgoodoo - Northwestern Australian Aboriginal word for sharp point(s) (long spines on superior appendages).

Remarks. This species has been collected from 7 fairly widespread sites in the Kimberley Region of northern Western Australia (latitudinal range 14 ° 48 '– 16 ° 31 'S).