Dexosarcophaga phoenix, Santos & Pape & Mello-Patiu, 2022
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publication ID |
https://doi.org/ 10.5852/ejt.2022.828.1857 |
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publication LSID |
lsid:zoobank.org:pub:DF138EE3-B825-4980-8BB5-3C03C53B7428 |
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DOI |
https://doi.org/10.5281/zenodo.6824152 |
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persistent identifier |
https://treatment.plazi.org/id/6E136889-13B8-4421-90AA-7667462CE4B1 |
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taxon LSID |
lsid:zoobank.org:act:6E136889-13B8-4421-90AA-7667462CE4B1 |
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treatment provided by |
Felipe |
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scientific name |
Dexosarcophaga phoenix |
| status |
sp. nov. |
Dexosarcophaga phoenix View in CoL sp. nov.
urn:lsid:zoobank.org:act:6E136889-13B8-4421-90AA-7667462CE4B1
Figs 1–2 View Fig View Fig , 3A–B View Fig
Diagnosis
Vein R 1 bare. Male: scutellum without apical setae; vesica funnel-shaped in ventral view ( Fig. 1E View Fig ); juxta like a cap or flat helmet, spread evenly across the paraphallus ( Fig. 1D View Fig ). Female: the two halves of T8 separated by less than the width of the cercus, each half of T8 with a deep anteromedian incision ( Fig. 2A–B View Fig ).
Etymology
The species epithet ‘ phoenix ’ should be treated as a noun in apposition. The ‘Phoenix’ is a mythological, resilient bird that arises from the ashes after having burned itself to death. This characteristic could symbolize a new beginning, like the start over of the Entomological Collection of Museu Nacional, Universidade Federal do Rio de Janeiro, after the tragic fire on 2 Sep. 2018 that destroyed most of its Entomological Collection, including all Sarcophagidae specimens. The new species is named in honor of the entire community of the Museu Nacional, for staying resilient after this tragic fire.
Material examined
Holotype BRAZIL • ♂; Rio de Janeiro, Itatiaia, Lagoa Azul ; 26 Sep. 1954; Albuquerque and Barros leg.; MNRJ [lost].
Paratypes BRAZIL • 1 ♂, 2 ♀♀; Minas Gerais, Nova Lima, Lagoa Grande ; 22 Feb. 1970; H.S. Lopes leg.; MNRJ [lost] • 1 ♂; Brasília , Distrito Federal; Nov. 1960; A.B. Guimarães leg.; MNRJ [lost] .
Description
Male (n=3)
Length: 6–8 mm.
HEAD. Parafacial, fronto-orbital plate and postocular orbits dark brown, with intense golden pollinosity ( Fig. 3A View Fig ); setae present on lower half of facial ridge; parafacial with row of setulae close to eye, lowermost 1–2 similar in size to subvibrissal setae; frons about 0.20 × head width at level of ocellar triangle; frontal vitta blackish; 8–11 well-developed frontal setae reaching level of apex of pedicel; rows of frontal setae parallel; reclinate orbital seta present, proclinate orbital setae absent; ocellar setae as developed as upper frontals; outer vertical seta undifferentiated from postocular setae; gena and genal groove with golden pollinosity ( Fig. 3A View Fig ); black setae on gena; postgena with silvery-gray pollinosity, black setae, and white setae restricted to posteriormost part ( Fig. 3A View Fig ); antenna dark brown ( Fig. 3A View Fig ); first flagellomere approximately 3× as long as pedicel; arista long plumose on basal ¾; palpus blackish ( Fig. 3A View Fig ).
THORAX. Dark brown with silvery-gray pollinosity ( Fig. 3A View Fig ); chaetotaxy: acrostichals 0–1 +1, dorsocentrals 3 (the anteriormost shorter) + 4 (two minor anterior), intra-alars 2+3, supra-alars 2 (the anterior one shorter) +3, postpronotals 3, notopleurals 4; postalar wall setulose; postalar callus with 2 setae; scutellum with one pair of basal and one pair of subapical setae, pair of preapical discal setae, apical setae absent; katepisternum with 3 setae almost in straight line; meral setae 8–10; proepisternum bare; prosternum setulose.
WING. Hyaline, veins dark brown; tegula dark brown; basicosta yellowish; vein R 4+5 setulose dorsally on ⅔ of distance to crossvein r-m; vein R 1 bare; cell r 4+5 open at wing margin; costal spine not differentiated; third costal sector bare ventrally.
LEGS. Blackish-brown, pulvilli yellowish-brown ( Fig. 3A View Fig ); mid femur with 2 median anterior setae, row of anteroventral setae, 2 preapical posterior setae, row of posteroventral setae and ctenidium of round spines posteroventrally; mid tibia with 1 median anterior seta, 1 basal posterior seta and 2 posterior setae in apical third; hind trochanter with normal anteromedian setae.
ABDOMEN. Dark brown, with silvery-gray pollinosity ( Fig. 3A View Fig ); T4 with 1 pair of longer median marginal setae and 1 pair of lateral marginal setae; row of about 14 marginal setae on T5; marginal setae of ST2–4 not differentiated from discal setae; ST5 deeply cleft to mid length, like inverted V; arms divergent, with sparse setae; pair of small setulose lobes almost meeting in midline; window absent ( Fig. 1A View Fig ).
TERMINALIA. Dark brown to black ( Fig. 3A–B View Fig ); cercus with numerous long setae in basal half and short and sparse setae in apical half; cercal prongs divergent and pointed ( Fig. 1B–C View Fig ); surstylus almost rectangular, with long apical setae ( Fig. 1B View Fig ); pregonite 2× as long as postgonite, curved like an ‘inverted C’ ( Fig. 1D View Fig ); postgonite with apex pointed and curved and a long seta inserted near middle of anterior margin ( Fig. 1D View Fig ); postgonal apodeme short and oval ( Fig. 1D View Fig ); basiphallus and distiphallus distinctly separated by dorsal membranous strip ( Fig. 1D View Fig ); vesica funnel-shaped in ventral view ( Fig. 1E View Fig ); juxta like cap or flat helmet ( Fig. 1D–E View Fig ); median stylus with enlarged base and apex narrow, slightly longer than lateral stylus, serrated laterally and with base curved towards ventral margin of paraphallus ( Fig. 1D–E View Fig ); lateral stylus narrow, with base slightly curved towards ventral margin of paraphallus and with apical spines ( Fig. 1D–E View Fig ).
Female (n =2)
Length: 6–8 mm. Differs from male as follows:
Frons about 0.30 × head width at level of ocellar triangle; 2 proclinate orbital setae similar to or slightly longer than reclinate orbital seta; outer vertical seta about ¾ length of inner vertical seta; mid femur without ctenidium; T5 with row of about 12 marginal setae; T6 undivided, broad posteriorly and with row of longer marginal setae at posterior margin ( Fig. 2A–B View Fig ); spiracle 6 in intersegmental membrane and spiracle 7 in tergal plate ( Fig. 2A–B View Fig ); T8 divided into two large and bare halves, separated by less than width of cercus, each half with deep anteromedian incision ( Fig. 2A–B View Fig ); marginal setae of ST2–4 slightly differentiated from discal setae ( Fig. 2A View Fig ); ST5 longer than wide ( Fig. 2A View Fig ); ST7–8 fused ( Fig. 2A–B View Fig ); ST6+ ST7 almost rectangular ( Fig. 2A–B View Fig ); numerous marginal setae on ST6 ( Fig. 2A–B View Fig ); ST7 as long as ST6, with numerous setae along posterior margin ( Fig. 2A–B View Fig ); ST8 short, almost as long as ST7 ( Fig. 2A–B View Fig ); epiproct membranous, with one pair of setae ( Fig. 2A–B View Fig ); hypoproct broad ( Fig. 2A–B View Fig ); cercus broad and rounded ( Fig. 2A–B View Fig ); vaginal plate membranous; spermathecae oval and striated ( Fig. 2C View Fig ).
Distribution
Brazil (Distrito Federal, Minas Gerais, Rio de Janeiro).
Remarks
Dexosarcophaga phoenix sp. nov. is morphologically similar to D. jandainae sp. nov. and D. angrensis (Lopes, 1975) . Dexosarcophaga phoenix sp. nov. and D. jandainae sp. nov. can be differentiated from D. angrensis by the absence of setosity on vein R 1 and by the complete visibility of the juxta in lateral view ( Figs 1D View Fig , 4D View Fig ) as opposed to a setose vein R 1 and an indistinct juxta in D. angrensis (Silva & MelloPatiu 2010: figs 46–47). Dexosarcophaga phoenix sp. nov. and D. jandainae sp. nov. share a helmetshaped juxta ( Figs 1D–E View Fig , 4D–E View Fig ), but they can be differentiated in particular by the shape of the vesica in ventral view, which is broadest proximally and looks like a funnel in D. phoenix sp. nov. ( Fig. 1E View Fig ), and is broadest distally and looks like an ‘X’ in D. jandainae sp. nov. ( Fig. 4E View Fig ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.