Tomosvaryella bicalcarata Földvari, Skevington & Motamedinia, 2023

Tomosvaryella bicalcarata Földvari, Skevington & Motamedinia sp. nov.

urn:lsid:zoobank.org:act:995F9A2A-0036-4302-B131-B7B5345D4907

Figs 10A–E View FIGURE 10 , 110 View FIGURE 110 , 148A View FIGURE 148

Diagnosis: This species can be recognized by the hind trochanter having two spur-like projections ( Fig. 148A View FIGURE 148 ); surstyli elongated in dorsal view ( Fig. 10A View FIGURE 10 ); phallic guide with six spines; phallus with three short ejaculatory ducts and two long membranous sheaths in ventral view ( Fig. 10E View FIGURE 10 ); hypandrial apodeme L-shaped in lateral view ( Fig. 10C–D View FIGURE 10 )

Description: MALE: Body length: 3.1–3.3 mm. Head. Flagellum acuminate; brown. Face silvery pollinose. Frons, upper part shining black, lower part distinctly silver pollinose; eyes touching for distance equal to 1.5–2 times the length of ocellar triangle. Occiput silvery pollinose, less so on upper 1/3. Thorax. Postpronotum pale, with 2–3 pale bristles. Mesonotum (viewed obliquely from front) brownish pollinose, anterior part more grey, grayish also from the side. Scutellum brownish pollinose and with 4–6 weak bristles along the distal edge. Dorsocentral bristles indistinct, somewhat more visible along frontal edge, numerous pale bristles around postpronotum. Halter, knob pale, stem brown. Legs. Mid coxa with 1–2 dark spine-like bristles. Trochanters and femora dark brown, shining ventrally, silvery pollinose posteriorly except shiny hind femur; knees and basal 1/5 of tibiae yellow (tibiae otherwise dark brown), tarsal segments yellow-brown, ventrally somewhat paler, last segment darker. Hind trochanter with double spurs, anterior is straighter and needle-like ( Fig. 148A View FIGURE 148 ); ventrobasal bristle (one) on fore and mid femora. Ventroapical row of spines on fore femur absent; 5–6 small, black spines on mid femur; hind femur without ventroapical spines, except 12–13 equally spaced bristles posteroventrally, longer on the distal half, in length up to 1.2–1.4 times the width of hind tibia at distal end. Subapical (distal) spines on first four tibiae absent. Metatarsi: hind metatarsus flattened, and almost as long as 2 nd and both with scrub-like bristles ventrally. Pulvilli shorter than last tarsal segment. Wing. Length: 2.9–3.0 mm. Upper side of basal costal cell with one short dark bristle. Fourth costal section 2–2.5 times as long as third costal section. Cross-vein r-m at middle of discal cell. 1–2 small brown setulae on tegula. Abdomen. Viewed obliquely from front tergites subshining black, tergite 1 silvery grey, sides silvery pollinose on tergites 3, 4 and 5 (largest on tergite 5). Dispersed strong dark bristles on all tergites present, longest on tergite 5 up to 0.5 times the width of hind tibia at distal end. Lateral bristles on first tergite present, 5–6 pale bristles up to 1.5 times as long as hind femur’s width at base. Postabdomen in dorsal view: T6, S7 invisible; T5 1.2 times as long as ST8. Genitalia without dissection: ST8 medium sized square shaped in dorsal view, brown and with the occasional abdominal bristles, otherwise velvet-like coverage; membranous area elongated, widening dorsally; epandrium brown, surstyli pale brown, long and broad. Genitalia. Genital capsule in dorsal view: epandrium wider than long (MLE:MWE = 0.8); surstyli symmetrical, rectangular shaped with pointing tips at its apical inner corner, left surstylus slightly longer and wider than right one ( Fig. 10A View FIGURE 10 ). Genital capsule in ventral view: phallic guide straight and slender, phallus with three ejaculatory ducts and with two membranous sheaths covered by some small condensed hairs at apex; gonopods elongated towards surstyli, equal in height, subepandrial sclerite long at apex and widened at base; hypandrium with a small hairy membranous sheath extended towards gonopod ( Fig. 10B View FIGURE 10 ). Genital capsule in lateral view: both surstyli curved towards sternite, more broadened at middle; hypandrial apodeme L-shaped, phallic guide with six dorso- dorsolateral spines (three short and three longer ones, the longest one twice as length as others) ( Fig. 10C–E View FIGURE 10 ).

FEMALE: Unknown.

Etymology: The name is from the Latin bi for two and calcar for spur, in reference to the hind trochanter having two spur-like projections.

Examined material: HOLOTYPE: AUSTRALIA: New South Wales: Culgoa National Park, 4.5km West-Northwest Cawwell Homestead, Claypan ( CGN3 View Materials M), 29°3’S, 147°1’E, Gidgee, 21.xii.2009 – 30.i.2010, B. Schiebaan, Malaise trap, CNC574785 View Materials (1♂, QM) GoogleMaps ; PARATYPES: AUSTRALIA: Queensland: Culgoa Floodplain National Park , 10km NE Toulby Gate ( CG3 ), 28°56’S, 147°0’E, 140m, Brigalow, 16.ix–1.x.2008, Simpson, Coward, Malaise trap, CNC576530 View Materials (1♂, CNC) GoogleMaps ; South Australia: Flinder’s Ranges National Park , Brachina Gorge, Heysen Hilltop , 31°20’S, 138°33’E, 9.x.1997, J.&A. Skevington & C. Lambkin, JSS8376 , JSS8384 , JSS8387–8 , JSS8391 (5♂, QM) GoogleMaps ; New South Wales: Culgoa National Park, 4.5km WNW Cawwell Homestead, Claypan ( CGN3 View Materials M), 29°3’S, 147°1’E, 192m, Gidgee, 22.XI–21. XII GoogleMaps .2009, C. Lambkin, N. Starick & B. Schiebaan, Malaise trap, CNC591856 View Materials (1♂, CNC) ; Culgoa National Park, 1km North-Northwest of Cawwell Homestead, Claypan ( CGN4 View Materials M), 29°4’S, 147°3’E, 136m, Gidgee, 30.I–18. V GoogleMaps .2010, Malaise trap, B. Schiebaan, CNC574679 View Materials (1♂, USNM) .

Distribution: Australia (New South Wales, Queensland, South Australia) ( Fig. 110 View FIGURE 110 ).

Notes: This species is found in dry habitats dominated by Acacia and is known to hilltop.