Oromasiphya ornata Townsend, 1927

Toma, Ronaldo & Pinheiro, Rodrigo A., 2025, New species of Oromasiphya Townsend (Diptera: Tachinidae) with a key to the species, Zootaxa 5729 (1), pp. 163-174 : 171-172

Oromasiphya ornata Townsend, 1927

( Figs. 7, 8 , 26–28 )

Diagnosis. This species can be distinguished from the other Oromasiphya species by the following combination of features: head with silver-gray overall pruinosity; occiput with white hairs; tergite 3 with a pair of median discal setae; apex of distiphallus with conical dorsal tube; apex of the ventral tubes ends at level of apex of the conical dorsal tube; apex of distiphallus about 0.45x of cercus length.

Description. Male. Body length: 8.75 mm, wing length: 7.8 mm.

Coloration. Head silver-gray pruinose, anterior border of ocellar triangle faintly yellowish gray pruinose viewed from certain angles; occiput with white hairs; frontal vitta brown with brass pruinosity near ocellar triangle; scape, pedicel and basal portion of postpedicel orange; apical two-thirds of postpedicel brown; palpus yellow; proboscis brown; dorsum of thorax black in ground color with gray pruinosity; scutum with four longitudinal black stripes with the same pattern as O. diamantina ; lateral of thorax and legs orange-brown; tegula and basicosta black; upper and lower calypters white; abdomen black, in dorsal view, apical third of tergite 5 orange; lateral of syntergite 1+2, basal two-thirds of the tergites 3 and 4, and basal half of tergite 5 irregular gray pruinose dorsally, apical portion of these tergites faint brass pruinose viewed from certain angles; abdomen, in ventral view, with syntergite 1+2, tergite 3, 4 and 5 orange-brown.

Head. Vertex about 0.27x head width in dorsal view; fronto-orbital plate with hairs descending near level of lower frontal setae; the lowest postocular setula at upper level of gena; pedicel about 0.48x length of postpedicel; scape about 0.39x length of pedicel; genal and subvibrissal setae about 0.50x vibrissa length.

Legs. Mid tibia with two strong anterodorsal setae interspersed by smaller setae, three posterior setae, the proximal one shorter, and two ventral setae, the most distal ventral seta larger and almost 4.0x length of the basal one.

Abdomen. Tergite 3 with a pair of median discal setae and one pair of lateral discal setae quite distinct from setula-like hairs; yellow patch of micro-hairs only on tergite 5.

The terminalia of this species ( Figs. 26–28 ) resemble those of O. guimai sp. nov., except for the slightly more robust cercus in lateral view and apex of distiphallus slightly more elongated, about 0.45x of cercus length.

Female: unknown.

Geographic distribution. Brazil ( São Paulo: Itaquaquecetuba).

Type material examined. Paratypes male ( MZUSP), labeled: “Itq 30 viii [handwritten]/ On Foliage”; “ Oromasiphya ornata TT male [handwritten]”; “dadiva Townsend 1926/ 22048 [in lateral] [all handwritten]”; “45/31”; “ Parátipo ” [green label]. The material was found dissected, and the terminalia are quite diaphanized .

Figures

FIGURES 1–8. Oromasiphya spp., male habitus, lateral and dorsal views (scale bar 1mm): 1 and 2, Oromasiphya diamantina sp. nov.; 3 and 4, Oromasiphya guimai sp. nov.; 5 and 6, Oromasiphya mineira sp. nov.; 7 and 8, Oromasiphya ornata Townsend.

FIGURES 17–31. Oromasiphya spp., male terminalia, lateral, posterior, and ventro-lateral views (scale bar 0,25 mm): 17– 19, Oromasiphya diamantina sp. nov.; 20–22, Oromasiphya guimai sp. nov.; 23–25, Oromasiphya mineira sp. nov.; 26–28, Oromasiphya ornata Townsend; 29–31, Oromasiphya urbanae Guimarães. Abbreviations: cerc—cercus; distph—distiphallus; dlfp—flap-like structure at the dorsal base of the dorsal tube; dlt—dorsal tube; epand—epandrium; hypd—hypandrium; pret+pgt—fused pre- and postgonites; segm7+8—segment 7+8; st5—sternite 5; st6—sternite 6; sur—surstylus; vlfp—flap-like structure at the ventral base of the ventral tube; vlt—ventral tube.