Tomosvaryella indistincta Földvari, Skevington & Motamedinia, 2023

Motamedinia, Behnam, Földvari, Mihaly, Skevington, Jeffrey H. & Kelso, Scott, 2023, Revision of Australian Tomosvaryella Aczél (Diptera: Pipunculidae) with description of 100 new species, Zootaxa 5599 (1), pp. 1-271 : 106-108

Tomosvaryella indistincta Földvari, Skevington & Motamedinia sp. nov.

urn:lsid:zoobank.org:act:798CD895-AB4F-4F20-8E8B-787B15E29A86

Figs 47A–E , 125

Diagnosis: This species can be recognized by shape of surstyli in dorsal view, broadened at base, gradually narrowed toward apex in dorsal view ( Fig. 47A ); long hypandrium, round gonopods at apex, indistinct subepandrial sclerite and sinuous ejaculatory ducts in ventral view ( Fig. 47B ); broadened surstyli in lateral view ( Fig. 47D–E ).

Description: MALE: Body length: 3.8 mm. Head. Flagellum tapering; brown, gray pollinose. Scape, pedicel black. Face silvery pollinose. Frons shining black; eyes touching for distance equal to 1.1 times the length of ocellar triangle. Occiput silvery pollinose. Thorax. Postpronotum pale, with 4–6 extra short, pale bristles. Mesonotum (viewed obliquely from front) greyish pollinose, anterior part greyer. Scutellum silvery pollinose and with 7–8 weak bristles along the distal edge. Dorsocentral bristles with very short and pale in a row, somewhat longer along frontal edge. Halter, knob pale, stem brown. Legs. Mid coxa with three long, dark bristles. Coxae, trochanters and femora black, shining ventrally, silvery pollinose posteriorly; knees and basal 1/5 of tibiae and femora yellow, tarsal segments brown, ventrally somewhat paler, last segment same dark brown. Mid trochanter with 6–8 short bristles. Hind trochanter without a keel, only some short bristles ventrally. Ventroapical row of 4–5 very weak spines on fore femur present; 5–6 small, black spines on mid femur. Ventrobasal spines absent on fore and mid femora; hind tibia with a wrinkle in the middle. Hind tarsi long, metatarsus almost as long as 2–5 combined; stronger, peg-like dark spines on metatarsus laterally along anterior edge. Pulvilli as long as last tarsal segment. Wing. Length: 3.8 mm. Upper side of basal costal cell with three long pale and three shorter bristles short dark bristle. Fourth costal section 3–3.5 times as long as third costal section. Cross-vein r-m distinctly distal to middle of discal cell. Abdomen. detached. Genitalia. capsule in dorsal view: epandrium and surstyli brown. Epandrium as long as wide (MLE: MWE = 0.0). Surstyli rather symmetrical, elongated; both surstyli broadened at base, moderately narrowed towards apex; right surstylus wider than left one basally, left surstylus damaged before apex ( Fig. 47A ). Genital capsule in ventral view: gonopods rounded at apex, equal in height; hypandrium long and sclerotized, subepandrial sclerite short and indistinct, only short distance between gonopod and base of surstyli ( Fig. 47B ); phallus with three distinct long sinuous ejaculatory ducts. Genital capsule in lateral view: both surstyli broadened and gently curved towards sternite before apex; phallic guide broad, pointed at apex ( Figs 47D–E ). Ejaculatory apodeme spade-shaped ( Fig. 47C ).

FEMALE: unknown.

Etymology: Indistinctus is Latin for obscure or dim and refers to the indistinct subepandrial sclerite found in the male genitalia.

Examined material: HOLOTYPE: Australia: New South Wales: Kinchega National Park, near Ranger h[ead]q[uarters], 32°24’S, 142°23’E, on paper daisy flower, 15.X.1997, J. Skevington, S. Winterton & C. Lambkin, JSS8368 (1♂, QM).

Distribution: Australia (New South Wales) ( Fig. 125 ).

Note: This species is genetically most similar to T. biloba sp. nov. (9.8–18.1% pairwise divergence) (Supplementary file 3).

Figures

FIGURE 47. Male genitalia of Tomosvaryella indistincta sp. nov. (JSS8368, QM) A) dorsal view, B) ventral view, C) ejaculatory apodeme, D, E) lateral view.

FIGURE 125. Distribution of Tomosvaryella indistincta sp. nov., T. infundibula sp. nov., T. kooncheraensis sp. nov. in Australia.