Petrolina Barbosa & Mello-Patiu, 2023

Barbosa, Taciano Moura, Mello-Patiu, Cátia Antunes & Vasconcelos, Simão Dias, 2023, A new Sarcophaginae (Diptera: Sarcophagidae) from Brazil: the peculiar colour of Petrolina bifasciata gen. nov., sp. nov., from the Caatinga xeric shrubland of northeastern Brazil, Zootaxa 5352 (2), pp. 235-244 : 236-240

Genus Petrolina Barbosa & Mello-Patiu gen. nov.

Type species: Petrolina bifasciata sp. nov., by present designation.

( Figs 1–16 )

Diagnosis. Differs from other Neotropical genera of Sarcophaginae by its peculiar coloration with only two black stripes dorsally on thorax ( Fig 11 ). Phallus with vesica reduced to a small plaque ( Fig 8 ); juxta long, with two sclerotized and broadly separated projections, which are united at the membranous base ( Fig 9 ); median and lateral stylus exposed and free at apex of phallus ( Figs 14 and 15 ); median stylus very long, exceeding length of juxta and presenting the distal part in the form of an arrowhead ( Figs 14 and 15 ); lateral stylus with base folded laterally and facing dorsal part of phallus, covering base of juxta in dorsal view ( Figs 7 and 9 ).

Etymology. The name of the genus was chosen as a tribute to the municipality of Petrolina , where the holotype was collected. The species epithet refers to the presence of two black stripes on the grey thorax, which is the distinguishing feature of the adult. This character so far differentiates the genus and the species from all other taxa within the subfamily Sarcophaginae .

Figures

FIGURES 1–5. Petrolina bifasciata gen. nov., sp. nov., male and female terminalia paratypes (MNRJ [lost]). 1. Male cerci, dorsal view. 2. Syntergosternite 7+8, epandrium, cercus and surstylus, lateral view. 3. Male sternite 5. 4. Female terminalia, ventral view. 5. Spermatheca.Abbreviations: ar, arm; bs, base; ce, cercus; ep, epandrium; hp, hypoproct; sur, surstylus; st5, sternite 5; st 6, 7 and 8, sternites 6, 7 and 8; stg 7+8, syntergosternite 7+8; tg 6+7, tergite 6+7; tg 8, tergite 8.

FIGURES 6–9. Petrolina bifasciata gen. nov., sp. nov., male terminalia, paratype. 6. Phallus and associated structures, lateral view. 7. Distiphallus, dorsal view. 8. Distiphallus, lateral view. 9. Distiphallus, ventral view.Abbreviations: bp, basiphallus; ea, ejaculatory apodeme; hp, hypandrium; ga, postgonal apodeme; j, juxta; ls, lateral stylus; ms, median stylus; ph, phallapodeme; po, postgonite; pr, pregonite; pp, paraphallus; v, vesica.

FIGURES 10–16. Petrolina bifasciata gen. nov., sp. nov. 10–12 and 16. Holotype. 13–15. Female paratype (UFPE) and male paratype (MNRJ [lost]). 10. Male habitus, lateral view. 11. Male habitus, dorsal view. 12. Male terminalia, lateral view. 13. Female terminalia, ventral view. 14 Distiphallus, ventral view (SEM). 15. Distiphallus, lateral view (SEM). 16. Cerci, dorsal view. Abbreviations: ce, cercus; ep, epandrium; j, juxta; ls, lateral stylus; ms, median stylus; po, postgonite; pr, pregonite; phl, phallus; sur, surstylus; pp, paraphallus; st 6, 7 and 8, sternites 6, 7 and 8; tg 5, tergite 5; tg 6+7, tergite 6+7; tg 8, tergite 8; v, vesica.