Trocnada dorsigera Walker

Dai, Wu & Dietrich, Christopher H., 2012, Review of the Australian leafhopper genus Trocnada with notes on related genera (Hemiptera: Cicadellidae: Iassinae), Zootaxa 3209, pp. 53-66 : 56

Trocnada dorsigera Walker

Figs. 1 A – J, 3A – H, 8A, 8F

Trocnada dorsigera Walker, 1858: 104 , Evans, 1966:208.

Abelterus incarnatus Stål, 1865: 158 , synonymised by Distant 1908: 100. Trocnada gigantea Evans, 1935: 78 , synonymised by Evans 1966: 208.

Description. Body length (including tegmen): male, 6.5 – 7.2mm, female 8.0 – 10.0mm.

General coloration female pink, pronotum sometimes yellowish and mottled with dark brown or black lateral markings on anterior margin. Forewing pink, sometimes with clavus yellowish brown or brownish black, or yellowish white with clavus pink ( Figs. 1 A – H). Male brown, pronotum mottled with dark brown or black lateral markings on anterior margin and spots on posterior margin ( Fig. 1 I – J). Hind femur macrosetae 2+2 with antepenultimate seta as large as others; tibial rows PD, AD, and AV with 31, 9, and 13 macrosetae, respectively.

Male pygofer ventral process with ventral extension quadrate ( Fig. 3 A), somewhat footlike with “toe” extended anteroventrad ( Fig. 3 A, D). Style apophysis with apex bluntly rounded ( Fig. 3 G). Connective stem moderately broad, distinctly widened posteriorly ( Fig. 3 H). Aedeagus shaft tubular, with paired apical processes short, slender, curved posteriorly; pair of lateral processes arising 1/4 distance from apex and extended along shaft slightly beyond gonopore ( Fig. 3 E – F).

Female sternite VII with posterior emargination conspicuous, semicircular ( Fig. 8 A). Second valvulae moderately broad; distal section of blades beyond prominent teeth without serrations, shorter than distance between teeth, dorsal margin between teeth evenly concave ( Fig. 8 F).

Material examined. Australia: Australian Capital Territory: 33, Black Mt., Light Trap 30 Nov. 1960, I.F.B. Common; 33, Black Mt., Light Trap, 27 Nov. 1960, I.F.B. Common; 13, 3Ƥ, Black Mt., Light Trap, 12-15 Dec. 1960, I.F.B. Common; 1Ƥ, Barry Dr nr Black Mtn, 2 Feb 1984, J. James; 3Ƥ, Corin Dam, 35 mi. W. Canberra, 25- 31 Dec. 1969. New South Wales: 1Ƥ, 4km NE by N of Whian Whian, 28.37S 153.21E, 21 Nov. 1976, I.F.B. Common & E.D. Edwards; 13, Upper Allyn R., 1500ft. 10 Nov. 1960, I.F.B. Common & M.S. Upton (ANIC). Queensland: 13, Lot 22 Mt. Berryman, Rd. Laidley, 3 Nov. 1990, at light, W. F. Chamberlain; 13, Indooroopilly, Brisbane, 30 Oct. 1990, at light, W.F. Chamberlain; 1Ƥ, Brisbane, 174 Jesmond Rd., 30 Oct. 1990, G. M. Chamberlain (INHS); 1Ƥ, Biggenden, Bluff Rd., 3 Jan. 1973, H. Frauca; 13, 1Ƥ, 9 miles W. of Paluma, 2500ft., 15 Apr. 1969, I.F.B. Common & M.S. Upton; 1Ƥ, 32km, NW by W of Cooktown, Isabella Creek, 15.18S 145.00E, 230m, 22 May 1977, I.F.B. Common & E.D. Edwards; 1Ƥ, Mt Coolum, 26.33S 153.05E, 15 Dec. 1968, at light, Britton & Misko. Tasmania: 2Ƥ, 13miles, S. Westbury, 4 Mar 1963, I.F.B. Common & M.S. Upton. Victoria: 1Ƥ Bendigo, 3 Nov. 1964, J.T. Medler, sweeping; 53, 3Ƥ, Little Desert, 13 miles S. of Kiata, 6-7 Nov. 1966, I.F.B. Common & M.S. Upton; 13, Lake Hattah National Park, 3 Nov. 1966, I.F.B. Common & M.S. Upton; 1Ƥ, Wyperfeld National Park, 4 Nov. 1966, I.F.B. Common & M.S. Upton. Western Australia: 13, 1Ƥ, 13km, E of Karalee, 31.17S, 119.59E, 13 Oct. 1970, Upton & Feehan; 1Ƥ, 3miles S by W of Mt. Ragged, 12 Nov 1969, M.S. Upton; 13, 35 miles SW by S of Norseman, 17 Nov. 1969, MS Upton; 13, 1Ƥ, 11 miles S, by W of Cocklebiddy, 2 Nov. 1969, M.S. Upton; 1Ƥ, 23 miles W of Fraser Range NS., 7 Nov. 1969, M.S. Upton; 1Ƥ, Karridale, Deep Dene, 20 March 1964, L.M. O’Halloran (ANIC).

Distribution. Australian Capital Territory (ACT), New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria.

Figures

FIGURE 1. Dorsal and lateral habitus of Trocnada dorsigera Walker [(A – H) female; (I – J) male].

FIGURE 3. Trocnada dorsigera Walker (A) Pygofer, lateral view. (B) Pygofer, ventral view. (C) Subgenital plate, ventral view. (D) Pygofer ventral process, lateral view. (E) Aedeagus, caudal view. (F) Aedeagus, lateral view. (G) Style, lateral view. (H) Connective.

FIGURE 8. Trocnada females. (A) Sternite VII, T. dorsigera; (B) same, T. alpina; (C) same, T. minuta. (D) First valvula, T. alpina; (E) detail of dorsal sculpturing. (F) second valvula, T. dorsigera; (G) same, T. alpina; (H) same, T. minuta.