Tomosvaryella hamounensis Motamedinia & Skevington

Motamedinia, Behnam, Skevington, Jeffrey H. & Kelso, Scott, 2021, Revision of Tomosvaryella Aczél (Diptera: Pipunculidae) in the Middle East, with description of 19 new species, Zootaxa 5002 (1), pp. 1-103 : 34-35

Tomosvaryella hamounensis Motamedinia & Skevington sp. nov.

Figs 17A–E , 27J , 47B, 51, 67C–D

Diagnosis: This species can be recognized by the shape of surstyli in dorsal view, symmetrical, broadened apically ( Fig 17A ), both surstyli rather rectangular-shaped in lateral view ( Fig. 17 D–E ); epandrium wider than long ( Fig. 17A ); hind trochanter expanded apically with a small projection (Fig. 47B). Based on the shape of surstyli in dorsal view, this species resembles T. nodosa and T. pruinosa . It differs by having broader surstyli apically and lacking a hypandrial apodeme ( Fig 17B ). Additionally, the hind trochanter of T. pruinosa lacks the small projection found in T. hamounensis sp. nov. (Fig. 47B) and T. nodosa (Fig. 47C).

Description: MALE: Body length (excluding antennae): 2.5–2.7 mm (n = 11). Head. Scape dark, pedicel and flagellum brown, arista light brown. Flagellum long tapering and gray-white pollinose (LF:WF = 5.0). Eyes meeting for a distance of 10–12 facets. Frons dark silver-gray pollinose. Vertex black, lacking pollinosity, bearing an elevated ocellar triangle. Occiput dark and gray pollinose. Thorax. Postpronotal lobe light yellow, gray pollinose with 3–5 yellowish setae along the upper margin (up to 0.03 mm). Prescutum, Scutum, Scutellum black. Scutum with two short uniseriate rows of intra-alar setae and two uniseriate rows of dorsocentral setae. Scutellum gray pollinose with 8–10 thin short setae along lateral margin (up to 0.01 mm). Subscutellum black, gray pollinose. Pleura brown. Wing. Length: 2.2–2.8 mm. LW:MWW = 1.6. Wing almost entirely covered with microtrichia. Cross-vein r-m reaches dm at the middle. M 1 moderately undulating in middle. Halter length: 0.33 mm. Whitish, narrowly brown at base. Legs. Coxae brown, gray pollinose. Mid coxa with two or three short dark anterior setae. Trochanters brown, gray pollinose. Hind trochanter broader apically with small projection with some short setae (Fig. 47B). Femora brown with light brown apices, gray pollinose. All femora with one wrinkled indentations at base. Tibiae light brown but darker in middle, with two ventral rows of short setae on anterior and three rows on posterior side. Hind tibia with 1–2 wrinkled indentations in middle. Tarsi light brown with scattered brown setae at anterior margin. Pulvilli yellow. Claws light brown with black tips. Abdomen. Ground color brown. Tergite 1 densely gray pollinose, with 3–5 brown lateral setae (up to 0.08 mm). Tergite 2–5 gray pollinose, with scattered brown setae. Genitalia. Genital capsule in dorsal view: epandrium and surstyli light brown. Epandrium wider than long (MLE:MWE = 0.54). Surstyli rather small and symmetrical. Both surstyli broadened at the middle, with an inner small projection at apex ( Fig. 17A ). Genital capsule in ventral view: gonopods rather equal in height ( Fig. 17B ). Subepandrial sclerite small and triangular-shaped ( Fig. 17B ). Genital capsule in lateral view: both surstyli rather rectangular shape, left surstylus with small ventroapical projection and right surstylus with ventrobasal projection ( Fig. 17D–E ). Phallic guide strong, phallus with three ejaculatory ducts. Ejaculatory apodeme tube-like, bent, with a bulb in its middle ( Fig. 17C ).

FEMALE: Body length: 2.6–2.7 mm (n = 5). Frons gray polllinose, widened in middle. Occiput gray pollinose. Eyes separated. Long tapering flagellum (LF:WF = 3.5). Scutum gray pollinose with two row dorsocentral setae. Pleura dark brown, silver-gray pollinose. Wing length: 1.9‒2.0 mm. LW:MWW = 2.1‒2.3. Fore femur bearing two smaller anteroventral spines in basal third, hind femur with 1–2 wrinkled indentations in basal. Pulvilli smaller than distitarsi. Tergites 1–6 with scattered gray pollinose. Tergite 8 brown, rounded, gray pollinose, distal part of piercer straight ( Fig. 27J ). LP:LB = 1.3‒1.4. LDP:LPP = 2.8‒2.9.

Etymology. The specific epithet refers to Hamoun, the region where the specimens have been collected.

Specimens examined: HOLOTYPE: IRAN: Sistan & Baluchestan: Zabol , 31°02’N, 61°32’E, 470 m a.s.l., 13.ix.2016, M. Enaiatnia, Malaise trap, JSS51893 (1♂, CNC) ; PARATYPES: IRAN: Sistan & Baluchestan: Zabol , 31°02’N, 61°32’E, 13.ix.2016, M. Enaiatnia , Malaise trap, JSS51894–5 (2♂, TAU, USNM) ; 2.ix.2016, M. Enaiat- nia, Malaise trap, JSS51896 (1♀, CNC) ; 31°03’N, 61°22’E, 7.iv.2016, M. Enaiatnia , Malaise trap, JSS51816–7, JSS52164, JSS52169 (4♂, CNC) ; 2–13.ix.2016, M. Enaiatnia , funnel Malaise trap, JSS52166, JSS52156, JSS52178 (3♀, CNC) ; 6.x.2016, M. Enaiatnia , Malaise trap, JSS52170 (1♀, CNC) .

Distribution: Iran ( Fig. 51 ).

Note: Based on DNA barcodes, T. hamounensis sp. nov. is most similar to T. pruinosa , differing by 5.7 % (pairwise divergence) (Supplementary Table 1).

Figures

FIGURE 17. Male genitalia of Tomosvaryella hamounensis sp. nov., paratype (JSS51894, TAU) A) dorsal view, B) ventral view, C) ejaculatory apodeme, D, E) lateral view.

FIGURE 27. Ovipositors in lateral view A) Tomosvaryella ampliasa sp. nov., paratype (JSS43959, TAU), B) Tomosvaryella pilosiventris (JSS51961, CNC), C) Tomosvaryella pruinosa (CNC470591, CNC), D) Tomosvaryella spinula sp. nov., paratype (JSS51820, CNC), E) Tomosvaryella emaratensis sp. nov., paratype (CNCD137556, CNC), F) Tomosvaryella parakuthyi (CNC470514, CNC), G) Tomosvaryella oshidae sp. nov., paratype (JSS51976, CNC), H) Tomosvaryella soziana sp. nov., paratype (JSS52205, CNC), I) Tomosvaryella nodosa (CNC470648, CNC), J) T. hamounensis sp. nov., paratype (JSS52178, CNC).

FIGURE 51. Distribution of Tomosvaryella bistounensis sp. nov., T. emaratensis sp. nov., T. frontata, T. gazliensis, T. hamata, T. hamounensis sp. nov. in the Middle East.