Orosarcophaga ornata Townsend, 1927

Mello-Patiu, Cátia Antunes de & Riccardi, Paula Raile, 2021, On the identity of Lepidodexia (Orosarcophaga) ornata (Townsend, 1927) (Diptera: Sarcophagidae) and a new generic synonym, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 61, pp. 1-6 : 3-5

publication ID	https://doi.org/ 10.11606/1807-0205/2021.61.35
publication LSID	lsid:zoobank.org:pub:7742C7F7-0017-49D0-8495-1921C3EC817F
persistent identifier	https://treatment.plazi.org/id/03A9878F-B304-EA6E-FF06-4097FE9AF989
treatment provided by	Carolina
scientific name	Orosarcophaga ornata Townsend, 1927
status

Treatment

Orosarcophaga ornata Townsend, 1927 New status ( Figs. 1-2 View Figure 1 View Figure 2 )

Type material: Lectotype male ( USNM) [designated by Townsend 1938: 47, destroyed]. Brazil, São Paulo, Itaquaquecetuba ( Fig. 1C View Figure 1 ). The lectotype label ( Fig. 1C View Figure 1 ) does not include information on the locality, which was retrieved from Lopes (1969).

Additional material: 2 ♂♂ Brazil, Rio de Janeiro, Itatiaia, Parque Nacional de Itatiaia, trilha [= trail] Rui Braga, 1,198 m, 22°26′09.1″S, 44°37′31.2″W, 12-18.iii.2017, Van Someren – shrimp [bait], Nihei et al. leg. [ MNRJ]

Diagnosis: Head and thorax with intense golden pruinosity, black abdomen with silvery-gray pruinosity; syntergosternite 7 + 8 with blackish-brown anterior half and yellowish-brown posterior half; yellowish-brown epandrium, cerci, and phallus; cercal prong with acute and curved forward apex, in profile; pregonite with apical half curved and spatulate; distally dentated postgonite; juxta broad and not detached from the paraphallus, distal margin with a pair of teeth in the middle accompanied by 2-3 teeth on each side; vesica with the surface covered with microtrichiae, with two hook-like projections, in profile; broad median stylus, with one basal pair of elongated processes; long and robust lateral styli.

Male: Length: 7-9 mm (n = 3).

Head ( Figs.1 View Figure 1 A-B):Parafacial and fronto-orbital plates with intense golden pruinosity; parafacial plate with a row of setulae close to the eye; frons about 0.30x head width at ocellar triangle level; entirely blackish frontal vitta; rows of parallel frontal setae except two slightly divergent anteriormost, 9-10 well-developed frontal setae reaching pedicel apex level; reclinate orbital seta present, proclinate orbital setae absent; outer vertical setae 0.3x inner vertical; black ocellar triangle, ocellar setae as developed as frontals; postocular area with yellowish-gray pruinosity; gena with golden pruinosity and black setae; black postgena with slightly silvery pruinosity, black setae and some few whitish setae close to occiput; face with golden pruinosity; black facial ridge with short setulae in the inferior half; black antenna, first flagellomere with gray pruinosity and about 2x longer than pedicel; arista long plumose on basal 2/3; blackish palpus.

Thorax ( Figs. 1 View Figure 1 A-B): Black with intense golden pruinosity on mesonotum and scutellum, postpronotum,notopleuron, anepisternum, anepimeron, and katepisternum. Chaetotaxy: acrostichals 2-3 + 1, dorsocentrals 4 + 4 (2 longer posteriormost), intra-alars 1 + 2, supra-alars 2 + 3, postpronotals 3, notopleurals 4; katepisternals 3 setae almost in a straight line; setulose postalar wall; postalar callus with 2 setae; meral setae 10-11; bare proepisternum; setulose prosternum; scutellum with a pair of basal, lateral, and subapical setae (the lateral one shorter and near the subapical), a pair of preapical discal, and a pair of apical setae. Wing. Hyaline, with dark-brown veins; yellow basicosta and black tegula; bare vein R₁; vein R₄ ₊ ₅ with setulae dorsally on almost the entire distance to crossvein r-m; cell r₄ ₊ ₅ open at wing margin; third costal sector bare ventrally; costal spine not differentiated. Legs. Blackish-brown with silvery-gray pruinosity,yellowish-brown pulvilli; mid femur with a row of 3 median anterior setae,a row of anteroventral setae, 2 preapical posterior setae, a row of posteroventral setae with an apical ctenidium of 8-9 modified setae; mid tibia with 1 median anterodorsal, 1 apical dorsal setae,2 basal,1 median, and 1 apical posterodorsal setae; hind femur with a row of anterodorsal setae, a median row of anterior setae, a row of anteroventral setae, 1 preapical dorsal, and 1 preapical posterior setae; hind tibia with 1 basal, 1 median, and 1 apical setae in the same position on the anterodorsal and posterodorsal margins, and 1 median anterior seta; hind coxa and trochanter with normal setae.

Abdomen ( Figs. 1 View Figure 1 A-B, 2B): Black with silvery-gray pruinosity; T3 with 1 lateral marginal and no median marginal setae;T4 with 3 lateral marginal and 1 median marginal setae; T5 with a complete row of marginals (ca. 20); rectangular ST2-4, ST2-3 with numerous long hair-like pale setae and some black ones; ST3-4 with a patch of black setae on the middle of the posterior margin; blackish ST5 with a cushion-like elongated process in the inner margins, covered by spinous setae ( Fig. 2B View Figure 2 ).

Terminalia ( Figs. 2A, 2 View Figure 2 C-D): Syntergosternite 7 + 8 with blackish-brown anterior half and yellowish-brown posterior half, 4-5 pairs of well-developed marginal setae; yellowish-brown epandrium, cerci, and phallus; epandrium with sparse setae, longer on the dorsal surface ( Fig. 2A View Figure 2 ); clavate surstylus with long setae on the apical half ( Fig. 2A View Figure 2 ); broad cercal prongs, parallel but separat- ed, in posterior view, with acute, blackish, and curved forward apex, in profile ( Fig. 2A View Figure 2 ); long pregonite, apical half curved and spatulate, and postgonite as long as the pregonite, with a long median setae and distally dentate ( Fig. 2C View Figure 2 ); separated basi- and distiphallus, short basiphallus, about 0.5x the paraphallus length ( Fig. 2C View Figure 2 ); broad juxta not detached from the paraphallus, distal margin with a pair of teeth in the middle accompanied by 2-3 teeth on each side ( Figs. 2 View Figure 2 C-D); pilose vesica with two hook-like projections, in profile, which are an odd upper lobe covering a bifid lower lobe, in ventral view ( Figs. 2 View Figure 2 C-D); broad median stylus with one basal pair of elongated processes ( Fig. 2D View Figure 2 ; arrow); long and robust lateral styli ( Fig. 2D View Figure 2 ).

Remarks: The lectotype was on loan at the MNRJ and, unfortunately, it was lost during the fire which destroyed the MNRJ Entomological Collection ( Duarte, 2019). We observed that there are individual differences in the number of teeth in the juxtal lateral dentation among the specimens examined (2 or 3 teeth on each side of the median teeth pair).