Ecnomina scutica, 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: 34-35

publication ID

http://doi.org/ 10.11646/zootaxa.1774.1.1

DOI

http://doi.org/10.5281/zenodo.5124153

persistent identifier

http://treatment.plazi.org/id/0749822F-FFCA-601B-6AE7-CBBACB06AF3A

treatment provided by

Felipe

scientific name

Ecnomina scutica
status

sp. nov.

Ecnomina scutica   sp. nov.

Figs 4, 5 View FIGURES 1–6 , 63–65 View FIGURES 63–68 , 173 View FIGURES 168–174

Diagnosis. Ecnomina scutica   can be separated from all other species in the genus by the distinctive long whiplike structure distally on segment IX.

Description. Head, body and wings dark brown; wings partly drawn ( Fig. 5 View FIGURES 1–6 ), similar to E. legula   ( Fig. 3 View FIGURES 1–6 ). Forewing length about 3 times width: male 5.0– 5.8 mm, female 5.6–6.7 mm. Forewing fork 2 relatively long, sessile or with short footstalk, footstalk length up to 0.4 times length cross-vein m, nygma present, length fork 2 about 1.2–1.3 times length of fork 3; fork 3 relatively long, sessile or with short footstalk, length fork 3 at least ten times length footstalk, footstalk length 0–0.3 times length cross-vein m; r-m and m not contiguous at fork 3 by about 1.7 times length cross-vein m; fork 4 slightly shorter than fork 3; fork 5 long, length about 1.8 times length of fork 4. Hindwing length about 2.7 times width, fork 2 sessile or with short footstalk, length footstalk up to 0.7 times length cross-vein m, fork 2 about 1.2–1.3 times length of fork 3.

Male. Segment IX with robust lateral extension with very long and slender whip-like process dorso-distally. Tergum X membranous, with two relatively long and slender diverging processes ( Figs 63, 65 View FIGURES 63–68 ). Superior appendages reduced, slightly dorso-ventrally compressed; in lateral view, slender, length about 6 times width ( Fig. 63 View FIGURES 63–68 ); in dorsal view, length about 3.5 times width, bifid distally ( Fig. 65 View FIGURES 63–68 ). Phallus generally tube-like, slightly compressed distally; with a single, robust, strongly down curved or hooked process (phallic guide) arising from near the base of the inferior appendages ( Fig. 63 View FIGURES 63–68 ). Inferior appendages in ventral view, fused basally, with wing-like extensions disto-laterally ( Fig. 64 View FIGURES 63–68 ); in lateral view, ovoid, dilated distally ( Fig. 63 View FIGURES 63–68 ).

Female. Genitalia with a single elongate and relatively slender mesal process on sternite VIII; segment IX relatively long, tapered slightly distally; segment X relatively short and segments IX and X relatively slender, with a few pairs of hairs on segment X ( Fig. 173 View FIGURES 168–174 ).

Holotype male: Victoria, Bells Clearing , 6 km S of Aberfeldy (about 37°44'S, 146°22'E), 9 Feb 1977, A.A. Calder ( NMV, T-19648). GoogleMaps  

Paratypes: Victoria. 2 males (specimen PT-1082 figured), collected with holotype GoogleMaps   ; 15 females (specimen PT-1081 figured), same loc. and collector, 8 Feb 1977; 2 males, Latrobe R. at Willow Grove, 24 Jan 1979, LTCS   ; 1 male, Thomson R., Knappings Clearing, 11 Feb 1980, Wells and McNamara   .

Other material examined: Victoria. 1 female, Yarra R., Hazelwood Rd , 20 Feb 1980   , J. Dean and D. Cartwright   ; 1 male, 1 female, Yarra R., Warburton East , 17 Feb 1975   , A.N.; 6 males, 2 females, Yarra R., OShannassy R. jn, 22 Feb 1976   , J. Dean and D. Cartwright   ; 1 male, Yea R. nr Glenburn , 8 Jan 1957   , A.N.; 1 female, Merrijig, 23 Jan 1956, A.N.; 1 female, Latrobe R. on Moe-Erica Rd, 38°8.8'S, 145°15'E, 28 Feb 1980 GoogleMaps   , Latrobe C Study   ; 1 female, Latrobe R., 4.8 km W of Noojee , 37°53.4'S, 145°54'E, 21 Jan 1979 GoogleMaps   , Latrobe C Survey   ; 1 female, Tanjil R., 4 km N of Moe , 18 Feb 1973   , collector?; 1 male, Myrtleford, 11 Jan 1955, A.N.; 1 male, Mitta Mitta, 4 Feb 1961, E. Matheson; 1 female, Mitta Mitta R. at Mitta Mitta , 17 Jan 1973   , Neboiss and Malcolm; 1 male, 1 female, Gibbo R., Morass Ck jn, 1 Feb 1974   , A.N.; 1 male, nr Nariel, 26 Mar 1963, E.M.; 1 female, Cobungra, 30 Jan 1959, A.N.; 1 female, Licola, 14 Nov 1965, A.N.; 1 female, Macallister-Barkly jn, Lyndon Flat , 6 Dec 1977   , GRES, NMV Survey Dept   ; 3 males, 4 females, Bonang , 9 Jan 1955   , J.E.W.; 1 female, Brodribb R., Sardine Ck track, 10 Feb 1980   , Wells and McNamara; 1 male, 2 females, Reedy Ck, East Gippsland , 6 Feb 1961   , N.D.; 1 male, 7 females, Wingan R., 8 km S of Princes Hwy , 30 Jan 1975   , A.N.

Etymology. Scutica - Latin word for whip (very long and slender whip-like processes on segment IX).

Remarks. Ecnomina scutica   is a very distinctive species which has been collected widely through central and eastern Victoria (latitudinal range 36°26'- 38°8.8'S).

NMV

Museum Victoria

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Trichoptera

Family

Ecnomidae

Genus

Ecnomina