Tomosvaryella eucalypti Motamedinia, Skevington & Földvari, 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 : 92

Tomosvaryella eucalypti Motamedinia, Skevington & Földvari sp. nov.

urn:lsid:zoobank.org:act:0BFF9791-E176-4A82-AD32-C5C119A6EBD3

Figs 39A–E , 121

Diagnosis: This species can be recognized by having 2–4 dark bristles ventrobasally on the hind trochanter; elongated surstyli, moderately narrowed before apex, bent to each other at the apex, both surstyli with a small lobe at base along inner margin in dorsal view ( Fig. 39A ); both gonopods extended towards surstyli with a semicircular projection on inner margin; phallic guide long and pointed at the apex with 3–4 dorso- dorsolateral spines in ventral margin ( Fig. 39B ); both surstyli widened at basal half, strongly narrowed at the apical half in lateral view: ( Fig. 39D–E ).

Description: MALE: Body length: 2.8 mm. Head. Flagellum long tapering, yellow-brown, brown pollinose. Scape and pedicel dark. Face silvery pollinose. Frons, upper part shining black; lower part distinctly silver pollinose; eyes touching for distance equal to 2.2 times the length of ocellar triangle. Occiput silvery pollinose, less so on upper 1/3. Thorax. Postpronotum pale, with 3–4 medium dark bristles. Mesonotum (viewed obliquely from front) silvery-brown pollinose, anterior part greyer. Dorsocentral bristles short, dark, longer in frontal half, numerous pale bristles around postpronotum present. Scutellum silvery brown pollinose and with 6–8 short dark bristles along distal edge. Halter, knob pale, tip brownish, stem brown. Legs. Mid coxa with 2–3 long 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. Hind trochanter with 2–4 dark bristles ventrobasally; 2–4 ventrobasal spines present on fore and shorter on mid femur. Hind femur without ventroapical spines. Subapical (distal) spines on first four tibiae present (short). Hind tarsomeres moderately flattened, hind metatarsus almost as long as 2–4 combined, dorsally all tarsomeres with erect bristles. Pulvilli shorter than last tarsal segment. Wing. Length: 2.7 mm. Upper side of basal costal cell with one long dark brown bristle. Fourth costal section 3 times as long as third costal section. Cross-vein r-m at middle of discal cell. 3–4 short dark setulae on tegula. Abdomen. Viewed obliquely from front tergites brown-black, tergite 1 silvery grey with 8–10 long dark lateral bristles; other tergites brown pollinose; membranous area rounded. Genitalia. Genital capsule in dorsal view: epandrium longer than wide (MLE:MWE = 1.2). Surstyli equal in height, elongated, widened at the base, moderately narrowed before apex, bent to each other at the apex, both surstyli with a small lobe ventrobasally ( Fig. 39A ). Genital capsule in ventral view: both gonopods extended towards surstyli, pointed at apex, gonopods with a semicircular projection on inner margin; phallic guide long and pointed at the apex with 3–4 dorso- dorsolateral spines, one is longer; subepandrial sclerite distinct ( Fig. 39B ); Genital capsule in lateral view: both surstyli widened at basal half, curved to the sternite, strongly narrowed at the apical half ( Fig. 39D–E ). Ejaculatory apodeme tube-like, bent, with a bulb in its middle ( Fig. 39C ).

FEMALE: Unknown.

Etymology: This species is named after the Eucalyptus forest habitat that the only known specimen was captured in.

Examined material: HOLOTYPE: AUSTRALIA: Queensland: Lonesome National Park, near Lookout (LNP4M), 25°30’S, 148°49’E, 535m, closed Eucalyptus woodland on rocky ridge, 3–26.XI.2010, Lambkin et al., Malaise trap, CNC591805 (1♂, QM).

Distribution: Australia (Queensland) ( Fig. 121 ).

Notes: Based on the terminalia characters, this species is close to Tomosvaryella ledknapperensis sp. nov. and Tomosvaryella prolata sp. nov. The shape of surstyli in lateral view differs from these two species.

Figures

FIGURE 39. Male genitalia of Tomosvaryella eucalypti sp. nov. (CNC591805, QM) A) dorsal view, B) ventral view, C) ejaculatory apodeme, D, E) lateral view.

FIGURE 121. Distribution of Tomosvaryella deltastyla sp. nov., T. dirigostyla sp. nov., T. eucalypti sp. nov. in Australia.