Tomosvaryella divaricata Motamedinia, Skevington & Földvari, 2023

Tomosvaryella divaricata Motamedinia, Skevington & Földvari sp. nov.

urn:lsid:zoobank.org:act:3CC06B94-AB98-4C32-8A2D-E9C8113E18EF

Figs 35A–E View FIGURE 35 , 118 View FIGURE 118

Diagnosis: This species can be recognized by the elongated surstyli, strongly narrowed at the apical half, their tips extended outwards in dorsal view ( Fig. 35A View FIGURE 35 ); gonopods triangle-shaped; one ejaculatory duct covered by some teeth in basal half ( Fig. 35D–E View FIGURE 35 ); ejaculatory apodeme funnel-shaped ( Fig. 35C View FIGURE 35 ).

Description: MALE: Body length: 3.5 mm. Head. Scape, pedicel, arista dark, Flagellum acuminate; yellow-brown, grey pollinose, arista with four short dark upper bristles and one lower bristle. Face silvery pollinose. Frons, upper part shining black; lower part distinctly silver pollinose; eyes touching for distance equal to 1.2 times the length of ocellar triangle. Occiput silvery pollinose with scattered short dark bristles. Thorax. Postpronotum pale, with 3–4 short pale bristles. Mesonotum (viewed obliquely from front) silvery brown (golden) pollinose. Dorsocentral and supra-alar bristles short, dark, Scutellum silvery brown pollinose with 4–6 bristles along distal edge. Halter, knob pale, stem light brown with 2–3 short dark bristles dorsally. Legs. Mid coxa with four long and 2 short dark bristles. Trochanters brown, femora black, silvery pollinose posteriorly except shiny hind femur; knees and basal 1/6 of tibiae yellow (tibiae otherwise brown), tarsal segments light brown, last tarsomeres brown. Hind trochanter without distinct feature, gray pollinose; ventrobasal bristles present (5–8) on fore and mid femur. Mid femur with two rows of short bristles posteroventrally and posterodorsally. Hind femur with 2–3 ventroapical spines. Subapical (distal) spines on first four tibiae present (short). Hind tarsomeres not flattened, hind metatarsus almost as long as 2–4 combined, dorsally all tarsomeres with erect bristles. Pulvilli shorter than last tarsal segment. Wing. Length: 3.5 mm. Upper side of basal costal cell with 2–3 long dark brown bristles. Fourth costal section 3 times as long as third costal section. Cross-vein r-m at middle of discal cell. 2–3 short dark setulae on tegula. Abdomen. Viewed obliquely from front tergites brown-black (golden), tergite 1 silvery grey. Lateral bristles on first tergite present, 4–10 short dark bristles up to as long as one quarter of hind femur’s width at base. Genitalia. Genital capsule in dorsal view: epandrium longer than wide (MLE:MWE = 1.1). Surstyli elongated, rather widened in basal half, strongly narrowed at the apical half, their tips extended outwards, left surstylus is longer than right one ( Fig. 35A View FIGURE 35 ). Genital capsule in ventral view: gonopods equal in height, triangle-shaped; phallic guide without spines; subepandrial sclerite short, one of ejaculatory ducts with some teeth in basal half ( Fig. 35B View FIGURE 35 ); Genital capsule in lateral view: both surstyli curved towards sternite ( Fig. 35D–E View FIGURE 35 ). Ejaculatory apodeme funnel shaped ( Fig. 35C View FIGURE 35 ). FEMALE: Unknown.

Etymology: From the Latin divaricatus, spread apart, in reference to the divergent tips of the surstyli.

Examined material: HOLOTYPE: AUSTRALIA: Northern Territory: near Darwin , 1km E Manton Dam, 12°53’S, 131°8’E, grass along stream near road, 3.IX.2004, J. Forrest & T. Wheeler, sweep net, LEM _0016204 (1♂, ANIC). GoogleMaps

Distribution: Australia (Northern Territory) ( Fig. 118 View FIGURE 118 ).