Tomosvaryella petala 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 : 171-173

Tomosvaryella petala Földvari, Skevington & Motamedinia sp. nov.

urn:lsid:zoobank.org:act:B1384E74-377B-4431-B7B3-467AB873FCF6

Figs 77A–E , 115 , 150B

Diagnosis: This species can be recognized by the hind trochanter having a slight keel covered by some short dark bristles; distal half of hind tibia distinctly flattened ( Fig. 150B ); syntergosternite 8 covered by distinct bristles; elongated surstyli in dorsal view ( Fig. 77A ); left gonopod longer than right one, both gonopods extended towards surstyli with a distinct projection on inner margin; phallic guide with 5–6 dorso- dorsolateral spines, one is downward and longer than others; subepandrial sclerite with a small fine-shaped edge in its center in ventral view ( Fig. 77B ).

Description: MALE: Body length: 2.4–2.5 mm. Head. Flagellum acuminate; yellow-brown. Face silvery pollinose. Frons, upper part shining black; lower part distinctly silver pollinose; eyes touching for distance equal to 1–1.5 times the length of ocellar triangle. Occiput silvery pollinose, less so on upper 1/3. Thorax. Postpronotum pale, with 2–3 distinct pale bristles. Mesonotum (viewed obliquely from front) silvery pollinose, anterior part more grey, grayish also from the side. Scutellum silvery brown pollinose and with 4–6 bristles along distal edge. Dorsocentral bristles distinct, dark, mostly in frontal half, a few pale bristles around postpronotum present. Halter knob pale, stem brown. Legs. Mid coxa with 2–3 long dark bristles. Trochanters brown, femora black, shining ventrally, silvery pollinose posteriorly except shiny hind femur; knees and basal 1/4 of tibia yellow (tibia otherwise brown), tarsal segments yellow, last segment darker. Hind trochanter with slight keel, and 7–10 short dark bristles, equally spaced; ventrobasal spines absent on fore and mid femur. Hind femur without ventroapical spines, except 10–12 short equally spaced bristles posteroventrally, longer on distal half, longest up to 1/3 the width of hind tibia at distal end. Subapical (distal) spines on fore tibia well developed. Distal half of hind tibia distinctly flattened. Hind tarsomeres distinctly flattened (especially tarsomeres 1–3), hind metatarsus as long as 2–4 combined; posterior corners with distinct bristles on all tarsomeres. Pulvilli shorter than last tarsal segment. Wing. Length: 2.5 mm. Upper side of basal costal cell with one long dark brown bristle. Fourth costal section 1.5–2 times as long as third costal section. Cross-vein r-m at middle of discal cell. 4–5 short dark setulae on tegula. Abdomen. Viewed obliquely from anterior tergites subshiny brown-black, tergite 1 silvery grey, silvery pollinose spots on tergites 4 and 5 (spot on t5 larger). Dispersed strong dark bristles on all tergites present, longest on ST8 posterior end, in length up to 1.5 times the width of hind tibia at distal end. Lateral bristles on first tergite present, 4–5 dark bristles up to as long as 3/4 hind femur’s width at base. Postabdomen in dorsal view: T6, S7 invisible; T5 1.5–1.7 times as long as ST8. Genitalia without dissection: ST8 medium sized, rounded in dorsal view, brown and with the longest bristles of the abdomen; membranous area is rounded dorsally, narrow ventrally, mostly directed posterodorsally; epandrium brown, surstyli yellow. Genitalia. Genital capsule in dorsal view: epandrium longer than wide (MLE:MWE = 1.5). Surstyli symmetrical, elongated, left surstylus straight and longer than right one (not curved to right one), right one curved to left one apically ( Fig. 77A ). Genital capsule in ventral view: gonopods unequal in height, left is longer than right one, both gonopods extended towards surstyli with a distinct projection on inner margin; phallic guide with 5–6 dorso- dorsolateral spines, one is downward and longer than others; subepandrial sclerite with a small fine-shaped edge in its center ( Fig. 77B ); Genital capsule in lateral view: both surstyli moderately slender to apex, right surstylus curved to sternite, left surstylus straight in basal two thirds, distinctly curved towards sternite in apical third ( Fig. 77D–E ). Ejaculatory apodeme tube-like, bent ( Fig. 77C ).

FEMALE: unknown.

Etymology: From the Greek petalos, broad, flat or outspread, in reference to the flattened distal half of the hind tibia.

Examined material: HOLOTYPE: AUSTRALIA: Western Australia: Millstream-Chichester Nat [ional] Park, Yarraloola Road , Fortescue River , 21°38’S, 117°7’E, rocky creek bed, drying pools, 28.IV–3.V.2003, C. Lambkin & T. Weir, Malaise trap, JSS16215 (1♂, WAM) ; PARATYPES: AUSTRALIA: Australian Capital Territory: Black Mountain , 35°16’S, 149°6’E, 15–17.II.1980; 27.II.1980, D.H. Colless, Malaise trap, JSS8505 , JSS8692 (1♂, ANIC; 1♂, CNC) ; New South Wales: 20 km E of Forbes , 33°23’S, 148°1’E, in Callitris forest, 9.IV.1977, Z. Liepa, JSS9178 (1♂, ANIC) ; Queensland: Prince of Wales Island, Torres Strait , 10°41’S, 142°11’E, 27–30. V .1969, Neboiss, JSS8795 (1♂, MVMA); Sunnybank, 27°34’S, 153°3’E, 9.III.1957, Haseler, JSS8279 (1♂, QM); 30 km north of Wrothan Park , 17°0’S, 144°19’E, 23.IV.1983, J.F. Donaldson, JSS8959 (1♂, QDPC) ; Western Australia: Heinsman Rock, Mount Ragged Track , 30°7’S, 123°28’E, 145m, woodland near drying pools, 30.X–18.XI.2003, C. Lambkin & J. Recsei, Malaise trap, ANIC Bulk Sample 2179, JSS16240 (1♂, ANIC); Karijini National Park, Banjima Road , 22°24’S, 118°16’E, 696m, in muddy creek, burnt Eucalyptus grassland, 15–18. V .2003, C. Lambkin, J. Recsei & N. Starick , Malaise trap, JSS15970 (1♂, ANIC); Millstream-Chichester National Park , Black Hill Pool , 21°20’S, 117°15’E, 176m, over wide dry rocky creek bed, Eucalyptus , 7–12. V .2003, C. Lambkin & D. Yeates, Malaise trap, JSS16316 (1♂, ANIC) .

Distribution: Australia (Australian Capital Territory, New South Wales, Queensland, Western Australia) ( Fig. 115 ).

Figures

FIGURE 77. Male genitalia of Tomosvaryella petala sp. nov. (JSS16215, WAM) A) dorsal view, B) ventral view, C) ejaculatory apodeme, D, E) lateral view.

FIGURE 115. Distribution of Tomosvaryella brooksi sp. nov., T. petala sp. nov., T. planca sp. nov. in Australia.

FIGURE 150. Hind legs of Tomosvaryella species in lateral view A) T. spinifex sp. nov., holotype (JSS16200, WAM), B) T. petala sp. nov., paratype (JSS16316, ANIC), C) T. parvistyla sp. nov., holotype (CNC575122, QM), D) T. minychoma sp. nov., holotype (JSS7363, WAM), E) Mid leg of T. calcarilonga sp. nov., paratype (JSS7634, QM), F) mid leg of T. leimonias, holotype (JSS4150, ZMAN).