Arcyphysa candela, Wells & Contents, 2018

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 : 32-33

Arcyphysa candela sp. nov.

( Figs 113–115 , 160, 161 , 187)

Material examined. Holotype ♂, New South Wales, Brown Mountain , 18.i.1961, E.F. Riek ( NMV [PT-1017]).

Diagnosis. Alone among Australian species of Diplectroninae , Arcyphysa candela has a pair of small digitiform lobes dorsolaterally on the apical margin of abdominal segment IX, here suggested to be homologous with the elongate apicolateral processes of other species in the genus. This feature distinguishes Arcyphysa candela from Arc. angusta and Arc. diamontona , with which it shares the characteristic of strongly bowed coxopodites.

Description. Male. Length of each forewing: 9.8 mm (n = 1). Lateral filaments short, internal sacs small, ovoid, less than 0.5x length of segment. On head, anterolateral warts distinctly divided.

Male. Genitalia ( Figs 113–115 , 160–161 ): Abdominal segment IX laterally partially fused with tergite X, sharp triangular projection middorsally, lateral extensions of apicolateral margins absent, dorsally with pair of digitiform or candle-like processes tipped with seta apicolaterally; gonopods sinuous in ventral view and broadly curved, each with coxopodite rod-like in lateral view, harpago almost 1/4 length of coxopodite, length about 2x width, tapered, directed mesad; phallic apparatus stout basally, narrower in distal half, without chitinised spines, with slender upturned lip apically.

Female. Unknown.

Distribution. Known only from the type locality in SE New South Wales. Remarks. Unfortunately, the body of the holotype is badly bleached, making it very difficult to be sure of some features.

Figures

FIGURES 110–116. Arcyphysa gen. nov. spp., diagnostic features. 110–111, Arc. hystricosa (Neboiss 1979) (Qld, North Stradbroke Island [PT-512]): 110, ventral; 111, left lateral. 112, Arc. satana (Mosely 1953; N Qld, Crystal Cascades, Trib. Crystal Creek), ventral. 113–115, Arc.candela sp. nov. (NSW, Brown Mountain [PT-1017]): 113, left lateral; 114, ventral; 115, dorsal. 116, Arc. diamontona sp. nov. (Vic., Diamond Creek, 7 km SE of Gembrook [PT-1047]), ♀ terminal abdominal segments, left lateral.

FIGURES 146–163. Arcyphysa gen. nov. spp., ♂ diagnostic features. 146–150, heads, dorsal: 146, Arc.angusta (Banks 1939; [PT-1005]); 147, Arc. carnarvona sp. nov. (Qld, Carnarvon Gorge); 148, Arc. satana (Mosely 1953; N Qld, Crystal Cascades, Trib. Crystal Creek); 149, Arc. diamontona sp. nov. [PT-1047]; 150, Arc. hystricosa (Neboiss 1979; Qld, North Stradbroke Island [PT-512]). 151, Arc. diamontana (Vic., Diamond Creek, 7 km SE of Gembrook), ♂ right fore- and hind wings, dorsal. 152–153, Arc. hystricosa [PT-512]: 152, antennal segments; 153, maxillary palp. 154–163, ♂ genitalia. 154–155, Arc. hystricosa [PT-512]: 154, ventral, and 155, left lateral; 156–157, Arc. satana (N Qld, Crystal Cascades, Trib. Crystal Creek): 156, ventral, and 157, left lateral; 158–159, Arc. angusta (NSW, Styx R. [PT-1005]): 158, ventral, and 159, left lateral; 160– 161, Arc. candela sp. nov. (NSW, Brown Mountain [PT-1017]): 160, ventral, and 161, left lateral; 162–163, Arc. diamontona [PT-1047]:162, ventral, and 163, left lateral. Scale bar = 2 mm. Abbreviations: ac = anal cell; alp = apicolateral process; A 1+2+3 = fused anal veins A 1, A 2, A 3;dc = discoidal cell; dalw = divided anterolateral wart; cox = coxopodite; mc = mediancell; har = harpago; ph = phallic apparatus; pw = posterior wart; X = abdominal segment X.