Pseudozygomma maculipennis ( Skuse, 1890 ) Skuse, 1890

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 : 442-444

Pseudozygomma maculipennis ( Skuse, 1890) comb. n.

( Fig. 26 A‒G)

Zygoneura maculipennis Skuse, 1890 [ Skuse (1890): 411 ‒412].

Type locality. Australia, New South Wales, Hogan ´s Brush, Narara Creek , near Gosford.

Lectotype (here designated): Male. Slide bears original label data verbatim ‘ Zygoneura maculipennis / Ƌ (ink) TYPE./ F. A. A. Skuse’ (print), ‘Hogan’s Brush/ Narara. Sk./ August.’ (ink). Mounted in Canada balsam Dec. 2015. ( ANIC; Slide No. 053-1).

Paralectotypes. 1 male, same data ( PWMP; Slide No. 053-3) ; 1 female: original label data verbatim ‘ Zygoneura maculipennis / ♀ (ink) TYPE./ F. A. A. Skuse’ (print), ‘Sydney’ (ink) (not studied).

Preservation. All morphological details in good condition; thorax of paralectotype damaged.

Remarks. Original description states “ Hab.—Sydney, and Hogan’s Brush, Narara Creek, near Gosford, N.S.W. (Skuse). Five specimens in August.”

Further material: 2 males, 17.‒24.XII.1993, NSW, Candelo near Bega, yellow trap, leg. A. Kallis (PWMP).

Additional description. Male. Head. Dark brown. Eye bridge 3 facets wide; flagellomeres brown, necks rather long, brown; 4th flagellomere with l/w index of 2.6, hairs very dense and somewhat longer than the width of the basal node; palpus 3-segmented, yellow, basal segment without sensory pit, with 2 bristles, last segment long. Thorax. Dark brown, scutum with short hairs (prescutellar and lateral hairs not more robust); scutellum with 2 longer marginal bristles; mediotergite with a few fine hyaline bristles in the middle; postpronotum bare. Wing pale, weak fuscous patch around the base of the M-fork; R1 = 2/3 R; R5 with ventral macrotrichia in the distal half; y = x, without macrotrichia; M-stem weakly visible, with 1‒3 macrotrichia; M-fork vase-like, with strongly arched M1; M-branches and 2/3 of CuA1 with macrotrichia, the strongly curved CuA2 with single macrotrichia only. Haltere short, brown. Coxae yellow, legs yellowish-brown, femora of hind legs brown in the distal half; fore tibia with a few spine-like bristles within the ground hair; apex of fore tibia with a broad comb of hyaline bristles, semicircular bordered; spurs of middle and hind tibia equal in size, longer than the width of the tibia apex; claws without teeth. Abdomen. Brown, densely hairy, rather long and dark. Hypopygium with broad v-shaped ventral base, without lobe or patch of bristles, but with hairs somewhat longer than gonocoxite on the inner ventral margin; gonostylus elongate, without apical tooth, apically as well as in the distal half of the inner side covered densely with short bristles and fine bristle-like spines (5‒6 spines somewhat longer than hairs near the middle of the inner side); tegmen deformed, with fine teeth; aedeagus rather short and thin. Body length: 3.2 mm.

Comments. This species is characterized by a vase-like M-fork, macrotrichia on M-branches and CuA1, a 3- segmented palpus without a sensory pit, brown coloured distal half of hind femora, a slightly semicircular bordered comb of bristles on the apex of the fore tibia and claws without teeth. The species belongs to the genus Pseudozygomma Mohrig , known from Papua New Guinea. In the shape of the gonostylus it is similar to Pseudoz. flavoabdominalis Mohrig, 2004.

Distribution. Australia (New South Wales).

Figures

FIGURE 26. Pseudozygomma maculipennis (Skuse, 1890). A. Hypopygium; B. Gonostylus, apical half; C. flagellomeres 3 ‒ 5; D. Palpus; E. Apex of fore tibia; F. Femora p 2 (outsides), femora p 3 (insides); G. Wing.