Scatopsciara nigrothoracica, Mohrig & Kauschke & Broadley, 2018

Mohrig, Werner, Kauschke, Ellen & Broadley, Adam, 2018, New black fungus gnats (Diptera: Sciaridae) from Eastern Australia, Zootaxa 4450 (2), pp. 203-241 : 237-239

Scatopsciara nigrothoracica sp. n.

( Fig. 24 A–C )

Type locality: Australia, Victoria, Twin River Drive, South Morang.

Holotype: Male, 18.i.2015, yellow trap in vegetable garden, leg. A. Broadley, #74B (ANIC).

Description. Male. Head: Dark brown. Eye bridge 3–4 facets wide. Antenna brown; 4th flagellomere with l/w index of 1.5, with whitish hairs, somewhat shorter than the diameter of the basal node; neck brown. Palpus brownish, 3-segmented, basal segment with 1 bristle, without a deepened sensory area. Thorax. Brown. Scutum with dark hairs, some lateral and prescutellar bristles longer; scutellum with 2 longer marginal bristles. Postpronotum bare. Wing pale, R1 short, somewhat longer than 1/2 R; R5 without ventral macrotrichia; C shorter than 1/2 w; y shorter than x, without macrotrichia; posterior wing veins without macrotrichia. Haltere brown. Coxa and legs brown; apex of fore tibia with a rather wide comb-like row of bristles; spurs of middle and hind tibiae distinctly unequal in size; claws without teeth. Abdomen. Brown, with brown hairs. Hypopygium basally wide and v-shaped; gonocoxites with rather short and sparse hairs at the inner ventral margin; gonostylus pointed to the apex, the inner side flattened, with an apical tooth and 3 spines at the inner side, 2 as a cross pair near the middle, the third below the middle. Tegmen large, wider than long. Aedeagus rather short. Body length: 2.0 mm.

Comments. The species is characterized by the dark body colour and the pointed gonostylus with a flattened inner side and 3 short spines.

Distribution. Australia: Victoria.

Figures

FIGURE 24. Scatopsciara nigrothoracica sp. n. A. Hypopygium; B. FlagEllomErEs 3–5; C. Tibial organ.