Phrudoneura adusta Bickel

Bickel, Daniel J., 2013, Phrudoneura (Diptera: Dolichopodidae) from Australia and Melanesia, Zootaxa 3680 (1) : -

Phrudoneura adusta Bickel , sp. nov.

( Figs 3 b, 6c)

Type material. NEW CALEDONIA: Holotype 3, paratypes 10 3, 11 Ƥ, Ouenguip, 19 km W of Hienghène, 16– 17.VII.1995, yellow pans nr. cascading creek, B.J. Sinclair (holotype, 2 3, 2 Ƥ, paratypes MNHN; paratypes also deposited CNC, BPBM, AMS).

Additional material. NEW CALEDONIA: 3 3, Prov. Nord, Mt Mandjélia, 5 km WSW Puébo, 20.397ºS 164.528ºE, Malaise trap, 780 m, 13–27.XI.2000, 27.XI.-8.XII.2000, 21.585° S, Schlinger & Irwin ( INHS); 3, N of Tipindje, in cave on beach, 11.III.1978, Schlinger ( INHS); 3, Mt Koghis, 17 km NNE Nouméa, 22º10.567'S 166º30.293'E, 550 m, 24.XI.-11.XII.2000, Malaise trap, Schlinger, Irwin & Webb ( INHS).

Description: Male ( Fig. 6 c): length: 2.1; wing: 2.2 x 0.9; similar to P. hibernalis except as noted:

Head: antenna dark brown but with yellowish margin along base of first flagellomere near join with pedicel; first flagellomere also subrectangular.

Thorax: setae black; mesonotum mostly dark with only faint yellowish colour on anterior slope; setation similar.

Legs: coxae and remainder of legs almost entirely yellow except for dark brown maculation posterobasally on CII, and distal half of FIII brown; I: 2.6/ 2.2/ 1.3; 0.6; 0.6; 0.4; 0.4; setation similar; II: 3.2/ 3.5/ 1.8; 1.2; 0.7; 0.5; 0.3; setation similar, but TII without posterior row of six short erect spaced setae; III: 3.4; 4.4; 1.0/ 1.7/ 1.0/ 0.7/ 0.4; setation similar.

Wing: M ends in membrane one-third distance between dm-cu crossvein and wing apex (MSSC); anal angle weak; CuAx ratio 0.5.

Abdomen: entirely dark brown with sparse short black setae; sternum 8 ovate with distinctive inverted Vshaped internal carina at base, and covering left basal hypopygial foramen; hypopygium ( Fig. 3 a) mostly dark brown with pale yellow cercus; epandrium subcircular; ventral distal margin of epandrium with 3 pedunculate setae, not on raised ledge; surstylus with short arms bearing various modified setae; subepandrial sclerite digitiform, with row of dorsal setae and toothlike apical seta; cercus digitiform and highly setose.

Female: similar to male except lacking MSSC and as noted: face and clypeus more widely separated, colour and legs setation similar; vein M joins margin just behind wing apex.

Remarks. Phrudoneura adusta is widely distributed across Grande Terre. The specific epithet is from the Latin and relates to its dark colour. (Also see discussion under P. h i b e r n a l i s).

Figures

FIGURE 3. Phrudoneura hibernalis sp. nov.; a. hypopygium, left lateral. P. adusta sp. nov.; b. male postabdomen, left lateral. Scale line = 0.1 mm.

FIGURE 6. Phrudoneura maculata Meuffels & Grootaert; a. male habitus, left lateral; b. male habitus, left lateral (Mt Mandjélia colour variant). P. adusta sp. nov.; c. male habitus, left lateral. P. hibernalis sp. nov.; d. male habitus, left lateral.