Bradysia ornatula ( 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 : 429-432

Bradysia ornatula ( Skuse, 1888) comb. n.

( Fig. 18 A‒C)

Sciara ornatula Skuse, 1888 [ Skuse (1888): 711 ‒712].

Type locality. Australia, New South Wales, Sydney.

Lectotype (here designated): Male. Slide bears original label data verbatim ‘ Sc. ornatula / Ƌ (ink) TYPE./ F. A. A. Skuse’ (print), ‘Sydney/ S’ (ink). Mounted in Canada balsam Dec. 2015. ( ANIC; Slide No. 039-1).

Paralectotypes. 4 males (not studied).

Remarks. Original description states “ Hab.—Sydney (Skuse). September.”

Preservation. Well preserved, all important morphological structures visible.

Additional description. Male. Head. Eye bridge 4 facets wide. Antenna brownish, necks bicoloured; 4th flagellomere with l/w-index of 3.2, with dense pale hairs that are longer than the width of the basal node; necks rather long, whitish, with brownish ends; palpus 3-segmented; basal segment with deepened sensory area and 1‒2 bristles. Thorax. Brownish, scutum with a few long and dark lateral bristles; scutellum with two long marginal bristles; postpronotum bare. Wing pale; R1 = 2/3 R; R5 with dorsal macrotrichia only; C = 3/4 w; y = x, without macrotrichia; posterior veins without macrotrichia. Haltere short, brownish. Legs yellowish; fore tibia with a small comb of 4‒5 pale bristles; spurs of middle and hind tibia equal in size, thin, as long as the apex of the tibia wide; claws toothless. Abdomen. Brownish, with sparse, short pale hairs. Hypopygium brownish, with v-shaped ventral base, without lobe or patch of bristles, gonocoxite with short fine hairs on the inner ventral margin; gonostylus bulbous in the middle, with dorsoapical tooth and 5‒6 apical/subapical spines among dense hairs at the apex; tegmen not visible. Body length: 2.2 mm.

Comments. The species is characterized by rather long densely hairy flagellomeres, with the hairs longer than the width of the basal node; a bulbous gonostylus with a claw-like tooth and 5‒6 spines among bristles of the same size at the apex. It belongs to the B. hilaris group.

Distribution. Australia (New South Wales).

Figures

FIGURE 18. Bradysia ornatula (Skuse, 1888). A. Hypopygium; B. Apex of gonostylus; C. Flagellomeres 2 ‒ 5.