Ecnomina cohibilis Neboiss

Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), Zootaxa 1774 (1), pp. 1-76 : 52-53

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5124217

persistent identifier

https://treatment.plazi.org/id/0749822F-FFD8-600D-6AE7-CF7FC8F3ADE9

treatment provided by

Felipe

scientific name

Ecnomina cohibilis Neboiss
status

 

Ecnomina cohibilis Neboiss View in CoL

Figures 114–116 View FIGURES 114–122 , 183 View FIGURES 175–183

Ecnomina cohibilis Neboiss, 1982: 290 View in CoL , 26–28, 38, 39, 46. — Neboiss 1986: 154.

Diagnosis. Ecnomina cohibilis resembles E. chorisis in possessing broad, fused, inferior appendages, with entire margin, not incised meso-distally, but it is distinguished by inferior appendages with length less than width.

Description. (Revised after Neboiss 1982). Head, body and wings fawn, abdomen paler ventrally; wings (fig. 46, Neboiss 1982) similar to E. legula ( Fig. 3 View FIGURES 1–6 ). Forewing length about 3.2 times width: male 3.3–3.8 mm, female 3.3–4.1 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, length fork greater than 8 times length footstalk, footstalk length about 0.1–0.6 times length cross-vein m, r-m and m not contiguous at fork 3 by about 1.0–1.4 times length of crossvein m; fork 4 shorter than fork 3; fork 5 long, length about 1.9 times length of fork 4. Hindwing length about 3.2–3.4 times width, fork 2 sessile, length about 1.5–1.6 times length of fork 3.

Male Tergum X membranous with a small mesal lobe ( Fig. 116 View FIGURES 114–122 ). Superior appendages in lateral view, sub-rectangular, length about 2.5 times width, with a robust, hooked ventro-distal projection ventro-basally ( Fig. 114 View FIGURES 114–122 ); in dorsal view, length about 4 times width, with two pairs of small meso-subapical teeth ( Fig. 116 View FIGURES 114–122 ). Phallus generally tube-like, a single spine apically, with a pair of elongate parameres dorso-laterally ( Fig. 114 View FIGURES 114–122 ). Inferior appendages fused, dorso-ventrally flattened, up curved laterally; in ventral view, large, broad, length about 0.6 times width, truncate, entire margin distally, with small pair of processes disto-laterally ( Fig. 115 View FIGURES 114–122 ); in lateral view, length about 2.5 times width, broad near middle, tapered distally ( Fig. 114 View FIGURES 114–122 ).

Female. Genitalia with a single relatively short and broadbased mesal process on sternite VIII, tapered distally to a rounded point; segment IX relatively long, tapered slightly distally, segment X relatively short and segments IX and X relatively slender ( Fig. 183 View FIGURES 175–183 ).

Material examined: Western Australia. Holotype male, Jandakot, Banganup Lake, 8 Nov 1971, J.C. Taylor. ( NMV, T- 6408). Paratypes, 15 males (specimen PT-632 figured), 15 females (specimen figured), collected with holotype ( NMV). Other Western Australian records refer to Neboiss (1982) .

Remarks. Ecnomina cohibilis is relatively abundant but restricted to the type locality in south Western Australia (latitude 32°07'S). Neboiss’s (1982) figures have been redrawn to allow direct comparisons and to accompany the description that is revised in light of new interpretations of Ecnomina genitalic and wing structures.

NMV

Museum Victoria

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Trichoptera

Family

Ecnomidae

Genus

Ecnomina

Loc

Ecnomina cohibilis Neboiss

Cartwright, David I. 2008
2008
Loc

Ecnomina cohibilis

Neboiss, A. 1986: 154
Neboiss, A. 1982: 290
1982
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