Ecnomidae

Cartwright, David I., 2010, Descriptions of 2 new genera and 13 new species of caddisflies from Australia (Trichoptera: Ecnomidae), Zootaxa 2415, pp. 1-21 : 3

Key to Australian (and southwest Pacific) genera of Ecnomidae

(after Flint 1973, Li and Morse 1997, Cartwright 2008, 2009)

1 Forewing fork 1 present ( Cartwright 1990: fig.9) ...................................................................... Ecnomus ( Australia) .

- Forewing fork 1 absent (Figs 1, 7)................................................................................................................................ 2

2 Hind wing with fork 3 absent (Fig. 1) ......................................................................................................................... 3

- Hind wing with fork 3 present ( Fig. 7 ) ......................................................................................................................... 4

3 Forewing fork 2 with short footstalk, footstalk about same length as crossvein r -m; fork 3 sessile ( Ward and Schefter 2000, fig. 4); head dorsally with posterior occipital warts positioned longitudinally ( Ward and Schefter 2000, fig. 1) ............................................................................................................................................. Agmina ( New Caledonia).

- Forewing fork 2 with a long footstalk, footstalk about 4 times length of crossvein r -m; fork 3 with long footstalk (Fig. 1); head dorsally with posterior occipital warts positioned transversly (Fig. 2). Absensomina (NE-Queensland).

4 Forewing with both forks 2 and 3 relatively short and with long footstalks, and hind wing with fork 3 shorter than footstalk ( Fig. 7 ; Ward and Schefter 2000, fig. 59) ..................................................................................................... 5

- Forewing with both forks 2 and 3 relatively long and with short footstalks, and hind wing with fork 3 longer than footstalk ( Cartwright 2008, figs 1, 3, 5; Cartwright 2009, figs 4, 14) ......................................................................... 6

5 Hind wing fork 2 relatively short with long footstalk, footstalk about 3 times length of crossvein r -m; humeral lobe present ( Fig. 7 ) ..................................................................................................................... Wellsomina (N-Australia).

- Hind wing fork 2 relatively long with short footstalk, footstalk about as long as crossvein r -m; humeral lobe absent ( Ward and Schefter 2000, fig. 59)........................................................................ Ecnomina kavinia ( New Caledonia).

6 Female with single elongate lobe or process on sternite VIII ( Cartwright 2008, figs 173–195; Neboiss 2003, fig. 16A); head with occipital warts aligned transversely ( Cartwright 2008, figs 4, 6); forewing fork 2 usually without nygma ( Cartwright 2008, figs 3, 5); larva with head and notal sclerotisation not uniformly pigmented ( Cartwright 1997, fig. 1.4) ............................................................................................... Ecnomina ( Australia and New Zealand).

- Female with pair of relatively large lobes on sternite VIII ( Cartwright 2008, figs 55–62; Cartwright 2009, figs 37– 40; Neboiss 2003, fig. 16E); head with occipital warts aligned longitudinally ( Cartwright 2008, fig. 2; Cartwright 2009, fig. 15); larva with head and notal sclerotisation uniformly pigmented ( Cartwright 1997, figs 1.1, 1.3) ........... ...................................................................................................................................................................................... 7

7 Forewing with cross veins r -m and m contiguous at fork 3 ( Cartwright 2009, figs 4, 14); female usually with pair of large irregular-shaped lobes or processes on sternite VIII ( Cartwright 2009, figs 37–40); Fore- and hind wings with fork 2 usually with footstalk, rarely sessile, forewing fork 2 without nygma ( Cartwright 2009, figs 4, 14); scutellum with oval scutal wart ( Cartwright 2009, fig. 15); larva with head and notal sclerotisation uniformly dark (orangebrown), head angular laterally ( Cartwright 1997, Fig. 1.1) ............................................ Austrotinodes (E. Australia) .

- Forewing with cross veins r -m and m not contiguous at fork 3 ( Cartwright 2008, fig. 1); female with pair of large rounded or ‘tongue-shaped’ lobes on sternite VIII ( Cartwright 2008, figs 55–62; Neboiss 2003, fig. 16E); fore- and hind wings with fork 2 usually sessile, rarely with short footstalk, forewing fork 2 usually with nygma ( Cartwright 2008, fig. 1); scutellum with heart-shaped scutal wart ( Cartwright 2008, fig. 2); larva with head and notal sclerotisation uniformly pale (light yellow), head rounded laterally ( Cartwright 1997, fig. 1.3).................................................. ................................................................................................................................ Daternomina (S and E. Australia).

Figures

FIGURES 7 – 11. Wellsomina spp. 7 – 8: Wellsomina stuarti sp. nov. 7: Forewing and hind wing. 8: Head and thorax, dorsal view. 9 – 11: Wellsomina baru sp. nov. male genitalia in left lateral, ventral and dorsal views.