Diplectrona Neboiss

Wells, Alice & Contents, Arturs Neboiss Table Of, 2018, Australian Diplectroninae reviewed (Insecta: Trichoptera), with description of 21 new species, most referred to a new genus, Zootaxa 4415 (1), pp. 1-44 : 7

Key to adult males of Diplectrona Neboiss

1 Distal portion of phallic apparatus heavily sclerotised, ventrally presenting smoothly rounded shiny dark surface (grey area in Fig. 14 ; Fig. 45 ), produced apicodorsally into pair of spines ( Figs 14–15 , 46 )............... Diplectrona willandi sp. nov.

-. Distal portion of phallic apparatus membranous, with or without discrete sclerotised spines and/or spicules distally (e.g., Figs 3, 6 , 42)............................................................................................. 2

2(1) Coxopodites of gonopods each at least 4x length of its harpago ( Figs 32–33, 42–43 , Neboiss 2003: fig. 22D)............ 3

-. Coxopodites of gonopods not more than 3x as long as harpagones............................................... 5

3(2) Phallic apparatus bearing complex of sclerotised rods and spines ( Figs 32, 34 )............. Diplectrona castanea Kimmins

-. Phallic apparatus without complex of sclerotised rods and spines, bearing clusters of spicules distally................... 4

4(3) Lobes laterally on abdominal tergites IX/X not reaching apex of tergite X ( Neboiss 2003, fig. 23A)................................................................................................... Diplectrona serrula (Neboiss)

-. Lobes laterally on abdominal tergites IX/X projecting beyond apex of tergite X ( Fig. 43 ; Neboiss 2003, fig. 22D).................................................................................. Diplectrona tasmanica Jacquemart

5(2) In ventral view one pair of prominent, sclerotised phallic spines dorsolaterally, small stout spines at their bases, in lateral view longer spines strongly curved dorsad............................................... Diplectrona spinata (Banks) *

-. In ventral view one small median spine and 2 pairs subequal sclerotised spines, usually directed laterad................................................................................................ Diplectrona inermis (Banks)

Figures

FIGURES 10–16. Diplectrona Westwood 1839, diagnostic features. 10–12, D. spinata (Banks 1939; holotype), ♂ genitalia: 10, ventral; 11, left lateral; 12, dorsal. 13, D. inermis (NSW, Leura, ‘Bridle Vale’ [PT-1057]), ♀ terminal abdominal segments, left lateral. 14–16, D. willandi sp. nov. (holotype), ♂ genitalia: 14, ventral; 15, left lateral; 16, dorsal. Abbreviations: ph = phallic apparatus; VIII, IX, X = abdominal segments VIII, IX, X.

FIGURES 32–48. Diplectrona Westwood 1839 spp., genitalia diagnostic features. 32, D. castanea (Kimmins 1953), (Tas., Nelson River at base of Nelson Falls [TRI-15004]), ♂, ventral; 33–34, D. lyelli Neboiss 1977 (synonym of D. castanea; paratype; Tas., Hellyer River Gorge [PT-1043]), ♂ segments IX and X and gonopods: 33, left lateral, and 34, apex of phallic apparatus, left lateral. 35–37, D. inermis (Banks 1939), ♂: 35, holotype, ventral; 36, holotype, left lateral; 37, Vic., Wilson’s Promontory, Waterloo Bay[PT-1011], ventral. 38–41, D.spinata (Banks 1939), ♂: 38, NSW, BarringtonTops,Upper Williams R. [PT-1835], ventral; 39–40, Qld, Brisbane [TRI-39514]: 39, left lateral, and 40, ventral; 41, Qld, Springbrook [TRI-39496], ventral. 42–44, D. tasmanica Jacquemart 1965 (Tas., Pine River, Cradle Mountain Road; ANIC): 42–43, ♂ genitalia: 42, ventral, and 43, left lateral; 44, ♀, terminal abdominal segments, ventral. 45–46, D. willandi sp. nov. (Qld, Fishery Falls), ♂: 45, ventral;46, left lateral.47–48, D.spinata(Qld, Springbrook[TRI-39426]),♀ terminal abdominal segments:47, ventral;48, left lateral.

FIGURES 1–9. Diplectrona Westwood 1839, diagnostic features. 1–5, D. inermis (Banks 1939; (NSW, Leura, ‘Bridle Vale’ [PT-1032]), ♂: 1, right fore- and hind wings, dorsal; 2, maxillary palp; 3, genitalia, ventral; 4, apex of phallic apparatus, left lateral; 5, genitalia, left lateral. 6–7, D. inermis (NSW, Minnamurra Falls, W of Kiama [PT-1035]), ♂ genitalia: 6, ventral; 7, left lateral. 8–9, D. inermis (Vic., Wilson’s Promontory, Waterloo Bay [PT-1011]), ♂ genitalia: 8, ventral; 9, left lateral. Scale bar = 1mm.Abbreviations:ac= anal cell;alp = apicolateral process;A 1+2+3 =fused analveins A 1, A 2, A 3;dc = discoidalcell;cox = coxopodite; fI, fII,fIII,fIV,fV = forks I–V; mc = mediancell; har = harpago; ph= phallic apparatus; ph sp= spines of phallic apparatus; IX, X = abdominal segments IX, X.