Tomosvaryella spinifex 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 : 201-203

publication ID

https://doi.org/10.11646/zootaxa.5599.1.1

publication LSID

lsid:zoobank.org:pub:B140A7ED-4B89-464B-8A3E-16934B175A40

DOI

https://doi.org/10.5281/zenodo.14971364

persistent identifier

https://treatment.plazi.org/id/715487A7-FF1A-ECA4-D8D9-ECCFFA8F134C

treatment provided by

Plazi

scientific name

Tomosvaryella spinifex Földvari, Skevington & Motamedinia
status

sp. nov.

Tomosvaryella spinifex Földvari, Skevington & Motamedinia sp. nov.

urn:lsid:zoobank.org:act:94E882AB-C082-4B86-BF9E-990DA9F7B556

Figs 91A–E View FIGURE 91 , 141 View FIGURE 141 , 150A View FIGURE 150

Diagnosis: This species can be recognized by the hind trochanter with a keel and 6–7 dark spines ( Fig. 150A View FIGURE 150 ); slender and elongated surstyli in dorsal view ( Fig. 91A View FIGURE 91 ); widened gonopods, pointed at apex, with a distinct projection on inner margin, their projections with an upwards small finger-like process in the middle ( Fig. 91B View FIGURE 91 ); phallic guide with 3–4 short dorso- dorsolateral spines; subepandrial sclerite widened, with a fin-shaped projection in its center ( Fig. 91B View FIGURE 91 ).

Description: MALE: Body length: 3.1– 3.1 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 2 times the length of ocellar triangle. Occiput silvery pollinose, less so on upper 1/3. Thorax. Postpronotum pale, with 3–4 short pale bristles. Mesonotum (viewed obliquely from front) silvery pollinose, anterior part more grey, greyish also from the side. Scutellum silvery brown pollinose and with 4–6 bristles along distal edge. Dorsocentral bristles short, dark, longer in frontal half, numerous pale bristles around postpronotum present. Halter knob pale, tip brownish, stem brown. Legs. Mid coxa with 3–4 long dark bristles. Trochanters brown, femora black, shining ventrally, silvery pollinose posteriorly except shiny hind femur; knees and basal 1/6 of tibiae yellow (tibiae otherwise brown), tarsal segments bright yellow. Hind trochanter with 45-degree keel, and 6–7 dark spines, longest proximally ( Fig. 150A View FIGURE 150 ); one ventrobasal spine present on fore femur, absent on mid femur. Hind femur without ventroapical spines, except 8–10 equally spaced bristles posteroventrally, longer on distal half, longest up to 2/3 the width of hind tibia at distal end. Short, subapical (distal) spines on fore- and mid tibiae present. Hind tarsomeres distinctly flattened (t1–3), hind metatarsus almost as long as 2–4 combined, dorsally all tarsomeres with erect bristles. Pulvilli shorter than last tarsal segment. Wing. Length: 3.2 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. 4–5 short dark setulae on tegula. Abdomen. Viewed obliquely from front tergites subshiny brown-black, tergite 1 silvery grey, silvery pollinose spots on tergites 4 and 5 (spot on tergite 5 larger). Dispersed strong dark bristles on all tergites present, longest on tergite 5 in length up to 1/3 the width of hind tibia at distal end. Lateral bristles on first tergite present, 4–5 dark bristles up to as long as ¾ of hind femur’s width at base. Postabdomen in dorsal view: T6, S7 invisible; T5 0.6–0.7 times as long as ST8. Genitalia without dissection: ST8 large, round, globular in dorsal view, brown and with distinct bristles, otherwise with velvet-like coverage; membranous area is slit-like, rounded, mostly directed posteriorly; epandrium brown, surstyli brown. Genitalia. Genital capsule in dorsal view: epandrium longer than wide (MLE:MWE = 1.2). Surstyli slender and elongated, curved towards midline at apex, left surstylus is longer and its apex is wider than right one ( Fig. 91A View FIGURE 91 ). Genital capsule in ventral view: both gonopods widened at base, extended towards surstyli, pointed at apex, gonopods with a distinct projection on inner margin, their projections with a small finger-like process in the middle; phallic guide with 3–4 short dorsolateral spines; subepandrial sclerite widened, with a fin-shaped projection in its center, its left margin covered with condensed short hairs ( Fig. 91B View FIGURE 91 ); Genital capsule in lateral view: both surstyli curved towards sternite, left one more widened, with hump-like edge dorsomedially ( Fig. 91D–E View FIGURE 91 ). Ejaculatory apodeme tube-like, bent, with a bulb in its middle ( Fig. 91C View FIGURE 91 ).

FEMALE: Unknown.

Etymology: This species is named after one of the dominant arid Australian grasses and is associated with Spinifex dominated grassland.

Examined material: HOLOTYPE: AUSTRALIA: Western Australia: Millstream-Chichester Nat[ional] P[ark], Roebourne Road, 21°26’S, 117°9’E, 337m, sandy creek, Eucalyptus Spinifex grassland, 27.IV–3.V.2003, C. Lambkin & T. Weir, Malaise trap, JSS16200 (1♂, WAM); PARATYPES: AUSTRALIA: Western Australia: 48 km NW Carnarvon; Blowholes Road; sandy trail, 24°35’S, 113°31’E, 7m, dry vegetated coastal dunes, 27.IV–11.V.2003, M.E. Irwin & F.D. Parker, Malaise trap, JSS15826, JSS15829 (1♂, CNC; 1♂, QM); Badgingarra National Park, 40 km east of Cervantes, 30°24’S, 115°25’E, 30.X.1987, M.E. Irwin & E.I. Schlinger, JSS8459 (1♂, CAS).

Distribution: Australia (Western Australia) ( Fig. 141 View FIGURE 141 ).

Note: Based on the DNA sequencing, this species is genetically similar to T. latistyla sp. nov. (4.0–5.4% pairwise divergence). Intraspecific genetic distance ranges from 0.0% to 1.3% (Supplementary file 3).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Pipunculidae

Genus

Tomosvaryella

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