Austropsyche victoriana Banks, 1939

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 : 21-22

Austropsyche victoriana Banks

( Figs 52–57 , 70, 76, 82 , 84–87, 98)

Austropsyche victoriana Banks 1939 , 496.

Diplectrona bispinosa Jacquemart 1965 ; Neboiss 1986, 218, as Au. bispinosa ; Neboiss 2003, 70, as Au. bispinosa . New synonym.

Material examined. Holotype Au. victoriana , ♂, Mt Donna Buang , Victoria, Harvard Australian Expedition, P.J . Darlington ( ANIC, ex MCZ 22086) . Holotype D. spinosa ♂, Sassafras (without indication of State ; confirmed as Victoria, not in Tasmania according to Neboiss 2003, 70) ( IRSNB) .

Other material, Victoria: 2♂ (1 dry) 1♀, Masons Falls, Kinglake , 15.ii.1953, A. Neboiss ; 1♂, Tarra Valley NP, 19.ii.1953, GW Douglas ; 2♂, Cement Creek, nr Warburton , 22.ii.1953, A. Neboiss ; 10♂ 2♀, Tarra Valley NP, 5.iii.1953, A Neboiss ; 1♂ 1♀, Vic, Tarra Valley Nat . Pk, Gippsland, 5.iii.1953, A. Neboiss [PT-1010 ♂, PT-1064 ♀]; 1♂, Cement Creek , 13.ii.1954, A. Neboiss ; 1♂ (dry), Masons Falls, Kinglake , 13.xii.1953, A. Neboiss ; 1♂ (dry), Cement Creek , 13.ii.1954, A. Neboiss ; 5♂ (dry), Millgrove , 27.iii.1954, A. Neboiss ; 2♂ (dry), Millgrove , 27.iii.1954, A. Neboiss ; 5♂, Mt Buffalo , 4,500ft, 13.i.1955, A. Neboiss ; 8♂, Cement Creek, nr Warburton , 5.ii.1955, A. Neboiss ; 1♂, Ladies Bath Falls, Porepunkah , 25.ii.1955, A. Neboiss ; 3♂ 1♀, Kinglake , 29.xi.1955. A. Neboiss ; 1♂, Cement Creek , 1.i.1957, A. Neboiss ; 2♂ Acheron Gap , 9.i.1957, A. Neboiss ; 3♂, Cement Creek, nr Warburton , 9.i.1957, A. Neboiss ; 1♂, Millgrove , 9.i.1957, A. Neboiss ; 6♂ 2♀, Porepunkah , 27.i.1957 ; 1♀, Porepunkah , 27.i.1957, A. Neboiss [PT-1065 ♀] ; 1♂, Millgrove , 16.iii.1958, A. Neboiss ; 3♂ 1♀, Falls Creek, Bogong High Plains , 26.i.1960, A. Neboiss ; 1♂, Mt Mackey , 26.i.1960, A. Neboiss ; 1♂, Cumberland Falls, SE Marysville , 16.xii.1960, A. Neboiss ; 1♂, Cement Creek, nr Warburton , 14.i.1961, A. Neboiss ; 1♂ 1♀, Cumberland Falls, SE Marysville , 17.i.1961, A. Neboiss ; 5♂, White Bridge, Mt Buller Road, 10.xii.1962, A. Neboiss; 1♂, Kalymna Falls, Williams Range, Grampians , 15.xii.1966, A Neboiss [PT-1009] ; 2♂, Kalymna Falls, Williams Range, Grampians , 14.iii.1974, A Neboiss ; 16♂, Cement Creek . 8.xii.1970, A. Neboiss [PT-1100] ; 46♂ 20♀ Cumberland Falls, SE Marysville , 7.i.1971, A. Neboiss [PT-1018, PT-1046] ; 1♂ 17 km SE Merrijig, 8 Mile Creek off Howqua River , 1.xii.1971, A. Neboiss ; 1♂, Cement Creek, nr Warburton , 27.iii.1972, A. Neboiss ; 4♂, Dandenong Mtns, Sassafras Creek , 18.xi.1972, P. Zwick ; 12♂, Yea River, 4 km NE of Toolangi , 17.xi.1973, A. Neboiss ; 11♂ 4♀, Sassafras Creek, 1 km N of Kallista , 30.x.1974, A. Neboiss [PT-1044] ; 1♂, Dee River, 2 km NW of Millgrove , 24.ii.1976, A. Neboiss ; 10♂, Dee River, 2 km NW of Millgrove , 24.ii.1976, A. Neboiss ; 1♂ 1♀, Yarra River, Millgrove , 24.ii.1976, A. Neboiss ; 1♂, Cement Creek, Mt Donna Buang , 12.i.1978, Cartwright & Dean ; 3♂ 1♀, Wilhelmina Falls, Falls Creek , trib. Murrindindi River, 12 km E of Glenburn , 6.xi.1979, A. Neboiss ; 2♂, Cement Creek , 7.xii.1979, Cartwright & Dean ; 11♂ 3♀, Cement Creek, Mt Donna Buang Rd , 7.xii.1979 [TRI- 16898] ; 3♂, Tooronga Falls, 7 km NE of Noojee , 27.xi.1981, Morse & Neboiss ; 13♂, Rum Creek, Erica-Thomson Road , 9.i.1985.

Diagnosis. Male similar to that of Austropsyche bifurcata in having 2 pairs of endothecal spines associated with the phallic apparatus, and only a very short sub-apical mesal spur on the coxopodite, but distinguished by the strongly ventrally directed spines subapically on the phallus; conical subapicomesal process on the coxopodite; in ventral view by the variably shaped basomesal lobes ventral to the phallic apparatus and dorsal to the gonopods (phallic guides of Ross & Morse unpublished MS), in lateral view visible as rather stout, tapered or rounded apicomesal lobes on abdominal sternite IX; without deep, elongate, sclerotised spines as seen in Au. ambigua and Au. acuta .

Description. Length of each forewing: ♂ 9.4–10.8 mm (n = 15), ♀ 13.1–14.1 mm (n = 7); venation as for Au. bifurcata ( Fig. 49 ).

Male. Abdomen ( Fig. 82 ) reticulate-walled internal sacs with pair on segment VI length of 2 segments, those on segment VII about 1.5x length of segment; lateral filaments on segment V elongate, almost length of segment. Genitalia ( Figs 52–56 , 84–87): In lateral view abdominal sternite IX with stout lobe protruding distally at each apicolateral angle, lobe conical, projected ventrad; tergite X short; gonopods each with coxopodite expanded towards apex, subapicomesally short conical process, harpago about half length of coxopodite, constricted in proximal third and distally curved mesad; phallic apparatus laterally with pair of short sclerotised spines subapically, without upper internal rods, phallotrema elongate, sclerotised dorsally.

Female ( Fig. 98 ). Abdominal sternite VIII in form of pair of subtriangular ventral plates, apicolateral angles very slightly produced distally; segment IX basally with transverse opening to sclerotic cavity.

Distribution. Widespread and quite commonly collected in Victoria from the Grampians to the central ranges.

Remarks. Considerable variation is seen in the male genitalia of this species. The apicolateral lobes on abdominal segment IX are variable in shape and length ( Figs 52, 55 , 84, 86), some in ventral view being almost truncate apically, some with a concavity on the apex, and some with the mesal margin extended, digitiform; the mesal lobe on each coxopodite sometimes is scarcely developed; and in preserved specimens the phallotrema may or may not be extended. The form appears to be consistent in samples, but much more study is needed to evaluate the extent of separation of populations. For the present, all are assigned to Au. victoriana .

Figures

FIGURES 49–58. Austropsyche Banks 1939 spp., diagnostic features. 49–50, ♂ right fore- and hind wings, dorsal: 49, Au. bifurcata (Kimmins 1953; holotype); 50, Au. ambigua sp. nov. (NSW, Upper Manning River, 20 km NNW Rawdon Vale [PT- 1019]). 51, Au. ambigua sp. nov. [PT-1019], ♂ maxillary palp. 52–56, Au. victoriana Banks 1939, ♂ genitalia: 52, (holotype), left lateral; 53–54, (Vic., Kalymna Falls, Williams Range, Grampians [PT-1009]): 53, ventral, and 54, left lateral; 55–56, (Vic., CementCreek [PT-1100]):55, left lateral,and 56, phallic apparatus, leftlateral and ventral and dorsal, respectively, leftto right. 57–58, ♀ terminal abdominal segments, left lateral: 57, Au. victoriana (Vic, Cumberland Falls, SE Marysville [PT-1046]); 58, Au.ambigua sp. nov. (NSW, Upper Manning River, 20 km NNW Rawdon Vale [PT-1058]). Scale bars = 2 mm.Abbreviations: ac = anal cell; A 1+2+3 = fused anal veins A 1, A 2, A 3;dc = discoidal cell; cox = coxopodite; coxp = mesal process on coxopodite; fI, fII, fIII, fIV, fV = forks I–V; mc = median cell; har = harpago; ph = phallic apparatus; VIII, IX, X = abdominal segments VIII, IX, X.

FIGURES 70–83. Austropsyche Banks 1939 spp., ♂ diagnostic features.70–75, heads, dorsal:70, Au.victoriana Banks 1939; 71, Au.bifurcata (Kimmins 1953); 72, Au. kaputar sp. nov.; 73, Au. acuta sp. nov.; 74, Au. ambigua sp. nov.; 75, Au. morana sp. nov. 76–79, right fore- and hind wings, dorsal: 76, Au.victoriana; 77, Au. kaputar sp. nov.; 78, Au.acuta sp. nov.; 79, Au. morana sp. nov. 80, Au. acuta sp. nov., antennal segments. 81, Au. acuta sp. nov., maxillary palp. 82, Au. victoriana, reticulate-walled internal sacs of abdominal segments VI and VII, ventral. 83, Au. acuta sp. nov., left lateral filament on segment V, ventral. Scale bars = 2 mm. Abbreviations: ac = anal cell; alw = anterolateral wart; amw = anteromesal wart; A 1+2+3 = fused anal veins A 1, A 2, A 3; dc = discoidal cell; mc = median cell; pw = posterior wart.

FIGURES 84–101. Austropsyche Banks 1939 spp., genitalia diagnostic features. 84–95, ♂ genitalia: 84–87, Au. victoriana Banks 1939:84–85, (typical form): 84, ventral, and 85, left lateral; 86, (Vic., Wilhelmina Falls [TRI-12958]), ventral, showing variation in development of the ventrolateral ‘plates’ at the bases of the gonopods; 87, (Vic., Cumberland Falls, SE Marysville [PT-1018]), ventral, showing variation in development of the ventrolateral ‘plates’ at the bases of the gonopods. 88–89, Au. bifurcata (Kimmins 1953; (ACT, Bendora [1015]): 88, ventral, and 89, left lateral. 90–91, Au.kaputar sp. nov. (holotype): 90, ventral, and 91, left lateral. 92, Au. acuta sp. nov. (NSW, Upper Crystal Creek), ventral. 93, Au. ambigua sp. nov. (Vic. Noorinbee [1097]), ventral.94–95, Au. morana sp. nov. (holotype): 94, ventral; 95, left lateral.96–101, ♀ terminal abdominal segments.96–97, Au.bifurcata (NSW, New South Wales,Dead Horse Gap): 96, ventral, and 97, left lateral; 98, Au.victoriana, ventral. 99, Au. morana sp. nov. (Qld, trickle on Moran's Falls track, Lamington NP), ventral. 100–101, Au. acuta sp. nov. (NSW, Upper Crystal Creek): 100, ventral, and 101, left lateral.