Austrosciara montivaga ( Skuse, 1888 ) Skuse, 1888

Broadley, Adam, Kauschke, Ellen & Mohrig, Werner, 2016, Revision of the types of male Sciaridae (Diptera) described from Australia by F. A. A. Skuse, Zootaxa 4193 (3), pp. 401-450 : 410-413

Austrosciara montivaga ( Skuse, 1888) comb. n.

( Fig. 6 A‒E)

Sciara montivaga Skuse, 1888 [ Skuse (1888): 710 –711].

Type locality. Australia, New South Wales, Berowra.

Lectotype (here designated): Male. Slide bears original label data verbatim ‘ Sc. montivaga / Ƌ (ink) TYPE./ F. A. A. Skuse (print)’, ‘Berowra (M+S)’(ink). Mounted in Canada balsam Dec. 2015. ( ANIC; Slide No. 036-1).

Paralectotypes. 2 males (not studied).

Remarks. Originally described by Skuse as “ Hab.—Glenbrook (Masters); Berowra and Knapsack Gully (Masters and Skuse). August to November.”

Preservation. Gonostylus strongly deformed, other structures in rather good condition.

Additional description. Male. Head. Dark brown. Eye bridge 3 facets wide; flagellomeres brown, necks short, brownish, slightly bicoloured; 4th flagellomere with l/w index of 2.2, and hairs shorter than width of basal node; palpus 3-segmented, whitish, basal segment without sensory pit, with 2-3 bristles; 3rd segment long and thin. Thorax. Brownish, prescutellar and a few lateral bristles long and dark; scutellum with 4 long marginal bristles; postpronotum bare. Wing pale; R1 = 3/4 R; R5 throughout with macrotrichia dorsally and ventrally; y = x, with macrotrichia; C somewhat longer than ½ w; M-stem and base of M1 weakly visible; posterior veins without macrotrichia. Haltere short, whitish. Coxae and legs yellowish; apex of fore tibia with a broad comb of hyaline bristles, 1‒2 bristles separate from comb; spurs of middle and hind tibia equal in size, longer than width of tibia apex; claws without teeth. Abdomen. Brownish; with rather long sparse hairs. Hypopygium with v-shaped ventral base, without lobe or bristle patch; gonocoxites with short and sparse hairs at the inner ventral margin; gonostylus with apical tooth and 5 somewhat longer spines in the apical third of the inner side (the basal ones being longer) within bristles of about the same length; tegmen as long as broad, apically straight, with fine teeth and with a weak ventral parameral apodeme. Body length: 2.8 mm.

Comments. This species is characterized by long prescutellar and lateral bristles on the scutum, bare posterior wing veins, macrotrichia on y, gonostylus with apical tooth and 5 spines in apical third of the inner side, and a simple rectangular tegmen.

Distribution. Australia (New South Wales).

Figures

FIGURE 6. Austrosciara montivaga (Skuse, 1888). A. Hypopygium; B. Apex of gonostylus; C. Scape, pedicel and flagellomeres 1 ‒ 3.; D. Apex of fore tibia; E. Wing.