Ecnomina volcella, 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 : 60-62

publication ID	https://doi.org/ 10.11646/zootaxa.1774.1.1
DOI	https://doi.org/10.5281/zenodo.5125045
persistent identifier	https://treatment.plazi.org/id/0749822F-FFD0-6004-6AE7-CEA0C954AB02
treatment provided by	Felipe
scientific name	Ecnomina volcella
status	sp. nov.

Treatment

Ecnomina volcella sp. nov.

Figs 138–140 View FIGURES 138–143 , 188 View FIGURES 184–195

Diagnosis. Ecnomina volcella can be distinguished from all other species in the genus by the very long and slender, pincer-like inferior appendages, which are separated basally and discrete.

Description. Head, body and wings brown; wings similar to E. legula ( Fig. 3 View FIGURES 1–6 ). Forewing length about 2.8– 3.0 times width: male 3.6–3.7 mm, female 3.4–3.6 mm. Forewing fork 2 relatively long, sessile, length about 1.2–1.4 times length of fork 3; fork 3 relatively long, with short footstalk, fork between 3.2–6.6 times length footstalk, footstalk length between 0.8–1.6 times length cross-vein m, r-m and m not contiguous at fork 3 by about 0.2–0.6 times length of cross-vein m; fork 4 shorter than fork 3; fork 5 long, length about 1.8 times length of fork 4. Hindwing length about 3.3 times width, fork 2 sessile or with very short footstalk, footstalk length between 0–0.9 times length cross-vein r-m, fork length about 1.4–1.5 times length of fork 3.

Male. Tergum X membranous, with one pair of broadbased, relatively long and slender dorsal processes ( Fig. 140 View FIGURES 138–143 ). Superior appendages in lateral view sub-rectangular, length about 35 times width ( Fig. 138 View FIGURES 138–143 ); in dorsal view, length about 4 times width, with a group of relatively long spines distally ( Fig. 140 View FIGURES 138–143 ). Phallus simple, tube-like with a small apical process ( Fig. 138 View FIGURES 138–143 ). Inferior appendages paired, discrete, slightly longer than superior appendages, broadbased, tapered distally, long and slender like a pair of pincers, with a pair of processes dorso-basally ( Figs 138, 139 View FIGURES 138–143 ).

Female. Genitalia with a single mesal process on sternite VIII, relatively elongate and slender with straight sides; segment IX relatively long and slender, tapered slightly distally, segment X relatively short ( Fig. 188 View FIGURES 184–195 ).

Holotype male: Queensland, Birthday Ck , 3.5 km WNW Paluma, 18°57'S, 146°10'E, at lt, 7 Apr 1990, R. St Clair ( NMV, T-19748). GoogleMaps

Paratypes: Queensland. 1 male (specimen CT-464 figured), collected with holotype GoogleMaps ; 1 male, 1 female (specimen CT-504 figured), Camp Ck proper, Mt Spec St. For. , 18°57'S, 146°10'E, 750m, lt tr., 17 Jan 1994, A.L. Sheldon GoogleMaps ; 2 males, 2 females, Camp Ck trib., Mt Spec St. For. , 18°57'S, 146°10'E, 750m, lt tr., 1 Jan 1994, A.L. Sheldon ( NMV) GoogleMaps .

Other material examined: Queensland. 1 male, Yuccabine Ck, Kirrama State Forest , 18°12'S, 145°54'E, Feb 1986, R GoogleMaps . Pearson and L. Benson ( NMV) .

Etymology. Volcella- Latin word for pair of pincers (inferior appendages).

Remarks. Ecnomina volcella is recorded from four sites in north-eastern Queensland (latitudinal range 18°12'S - 18°57'S).