Wellsomina naumanni, 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 : 10-11

publication ID	https://doi.org/ 10.5281/zenodo.194387
DOI	https://doi.org/10.5281/zenodo.6202152
persistent identifier	https://treatment.plazi.org/id/AA598020-1864-FF9D-9DE8-3C83FC7E1943
treatment provided by	Plazi
scientific name	Wellsomina naumanni
status	sp. nov.

Treatment

Wellsomina naumanni sp. nov.

Figs 18–20 View FIGURES 12 – 20

Diagnosis. Wellsomina naumanni can be distinguished from other Wellsomina species by the combination of 2 features: superior appendages with a dorsomesal process and inferior appendages fused in the basal 2/3rds and with sides parallel.

Description. Head, body and wings light brown; wings similar to those of W. stuarti ( Fig. 7 View FIGURES 7 – 11 ), length of forewing: male 2.5–2.6 mm. Wing venation: forewing length about 3.6 times width, each with forks 2, 3, 4 and 5 present; fork 2 relatively short, fork 2 footstalk relatively long, length about 2.2 times length of crossvein r -m, length of fork 2 about 1.8–2.0 times length of fork 3; fork 3 very short, length of fork 3 about 0.6 times length of footstalk, footstalk fork 3 very long, length about 4.2 times length of cross-vein m. Hind wing length about 4.5 times width, each with forks 2, 3 and 5 present, all short; fork 2 footstalk relatively long, length about 3.9–4.2 times length of cross-vein r -m.

Male. Tergum X membranous with small mesal split ( Fig. 20 View FIGURES 12 – 20 ). Superior appendages complex, slightly laterally compressed, with spine-like setae distally, and each having truncate mesal process with apical spines ( Figs 18–20 View FIGURES 12 – 20 ). Phallus simple, tube-like with single, long slender spine situated dorsally ( Figs 18, 20 View FIGURES 12 – 20 ). Inferior appendages depressed, in ventral view fused in basal 2/3rds, sides straight, distally with pair of widely separated robust digitiform processes ( Fig. 19 View FIGURES 12 – 20 ); in lateral view slender, tapered slightly and upturned distally ( Fig. 18 View FIGURES 12 – 20 ).

Female. Unknown.

Holotype male: Western Australia, 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).

Paratypes: Western Australia. 17 males (specimen CT-485 figured), collected with holotype ( ANIC).

Etymology. Naumanni - named after Dr Ian Naumann (collector).

Remarks. This species is known from a total of 18 male specimens from the type locality only in the Kimberley Region of northern Western Australia (latitude 16°22'S).