Dexosarcophaga varenna ( Dodge, 1968 )
publication ID |
https://doi.org/ 10.5281/zenodo.156004 |
DOI |
https://doi.org/10.5281/zenodo.6279058 |
persistent identifier |
https://treatment.plazi.org/id/03E6EA05-FFF4-FFA3-AA73-F98398F17426 |
treatment provided by |
Plazi |
scientific name |
Dexosarcophaga varenna ( Dodge, 1968 ) |
status |
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Dexosarcophaga varenna ( Dodge, 1968) View in CoL ( Figs. 3650 View FIGURES 36 43 View FIGURES 44 50 )
Varcophaga varenna Dodge, 1968: 448 View in CoL . Type locality: Panama, Barro Colorado Is.; male holotype, SEM.
Dexosarcophaga varenna View in CoL ; Lopes, 1973b: 482 (PT examined, synonymy established). Dexosarcophaga dominicensis Lopes, 1973b: 480 View in CoL . Type locality: Dominica; male holotype, USNM. SYN. NOV.
Male – Total length = 56 mm.
Head – Frontoorbital and parafacial plates gray with slightly yellowish microtomentum, with a row of black setulae along eye margin; frontal vitta black; frons 0.20 X head width; frontal row of 911 bristles; 1 reclinate frontoorbital bristle, proclinate absent; outer vertical bristle not differentiated from the postocular setae; gena and postgena gray with black setae; antenna dark brown, first flagellomere with gray microtomentum, pedicel 0.3 X first flagellomere length, arista long plumose on basal 1/2; palpus black.. Thorax – Gray with slightly golden microtomentum in postpronotal and mesopleural areas. Prosternum with scattered setulae in posterior 1/2. Chaetotaxy: acrostichals 34 (weakly differentiated) + 1, dorsocentrals 34 + 4 (two posteriormost longer), intraalars 2 + 2, supraalars 2 + 3, postpronotals 3, postalars 2, notopleurals 4, scutellum with 2 marginals strong setae intercalated by 2 weak ones, 1 small apical, discals 1, meropleurals 7 9, katepisternals 3 (in a line). Wing hyaline, R1 bare, R4+5 setulose in basal 1/2 to crossvein rm, costal spine not differentiated, third costal sector without ventral setulae. Legs black, mid femur with posteroventral apical ctenidium (3 spines), mid tibia with 1 setae in the apical half and 1 strong one ventrally in anterior face, hind tibia with 1 anteroventral setae.
Abdomen – Gray with the usual silver tesselation and slightly golden microtomentum in lateral; T1+2–3 without median marginal seta, T4 with a pair of median marginal setae; ST2 with long and dense black setae. ST5 with scattered black thin setae, posterior margin with a shallow concavity ( Fig. 44 View FIGURES 44 50 ).
Terminalia – Syntergosternite 7+8, epandrium and cercus dark brown; epandrium with some differentiate dorsal setae and syntergosternite 7+8 with 3 pairs of marginal setae ( Fig. 36 View FIGURES 36 43 ); cercus moderately curved forwards in profile ( Figs. 36, 37 View FIGURES 36 43 ); clavate surstylus with setae in anterior margin ( Fig. 36 View FIGURES 36 43 ); gonopod with enlarged base ( Figs. 38, 39 View FIGURES 36 43 ) and paramere narrow and slightly curved, with a strong setae on anterior margin ( Figs. 38, 40 View FIGURES 36 43 ); phallus with a distinct basiphallus, distiphallus with a pair of ventral tonguelike process and a pair of membranous and spinous small lobes in the dorsal surface ( Figs. 38, 41 View FIGURES 36 43 , 45 View FIGURES 44 50 ); juxta narrow and elongated, protecting the apices of lateral styli ( Figs. 38, 41 View FIGURES 36 43 , 45 View FIGURES 44 50 ); long lateral stylus with simple base and dentate apex ( Figs. 41, 42 View FIGURES 36 43 , 45, 46 View FIGURES 44 50 ); median stylus represented by a small double rugose lobe between the apices of the lateral styli ( Figs. 41, 42 View FIGURES 36 43 , 45, 46 View FIGURES 44 50 ); vesica well sclerotized, bearing a pair of median projections with serrate margin, bifurcated at apical portion with each arm ending pointed and serrate with a membranous inner prolongation, see in ventral view ( Figs. 41, 43 View FIGURES 36 43 , 47 View FIGURES 44 50 ).
Female – Total length = 68 mm.
Like the male in most characters, except for: frons broader, 0.24 X head width; 2 well developed proclinate frontoorbital bristle; entire T6 with narrow hind region and series of marginal bristles; spiracle 6 situated in membrane and 7 within the sclerite; T8 divided in two broad and exposed plates, without setae; epiproct divided into two small plates, each one with 1 setae; ST6 broader than ST5; ST7 with longer bristles in posterior region; ST8 joined to ST7, with a sclerotized and setose posterior area with a little median anterior projection; membranous vaginal plate ( Figs. 48, 49 View FIGURES 44 50 ); spermathecae pyriform, finely striated ( Fig. 50 View FIGURES 44 50 ).
Material examined – Panama. Barro Colorado Is., 1 male, 7.III.1963, C.W. & M.E. Rettenmeyer ( V. varenna paratype) ( MNRJ); Dominica. Clarke Hall, 2 males, 12 18.X.1964 P.J. Spangler ( D. dominicensis paratypes) ( MNRJ); ibidem, 1 male and 1 female, 1116.XII.1964 P.J. Spangler ( D. dominicensis paratypes) ( MNRJ); ibidem, 1 male, 810.I.1965, W.W. Wirth ( D. dominicensis paratype) ( MNRJ).
Distribution – NEOTROPICAL – Dominica, Panama.
Remarks – A detailed analysis of the type of D. dominicensis gave reasons to consider the nominal species as a junior synonym of D. varenna ( Figs. 4447 View FIGURES 44 50 ). The shape and structural arrangement of the distiphallus of D. varenna and D. pusilla Lopes, 1975 suggest that these species may form a distinct speciesgroup. Both species have a pair of small sclerotized tonguelike processes, connected to the internal part of the distal area and projecting from near the base of the lateral styli ( Figs. 41 View FIGURES 36 43 , 45 View FIGURES 44 50 ).
MNRJ |
Museu Nacional/Universidade Federal de Rio de Janeiro |
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.
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Dexosarcophaga varenna ( Dodge, 1968 )
Mello-Patiu, Cátia Antunes De 2002 |
Dexosarcophaga varenna
Lopes 1973: 482 |
Lopes 1973: 480 |
Varcophaga varenna
Dodge 1968: 448 |