Dexosarcophaga pallida, Santos & Pape & Mello-Patiu, 2022
publication ID |
https://doi.org/ 10.5852/ejt.2022.828.1857 |
publication LSID |
lsid:zoobank.org:pub:DF138EE3-B825-4980-8BB5-3C03C53B7428 |
DOI |
https://doi.org/10.5281/zenodo.6824168 |
persistent identifier |
https://treatment.plazi.org/id/65C1F210-E75B-4A8A-A85E-F4704CB39D21 |
taxon LSID |
lsid:zoobank.org:act:65C1F210-E75B-4A8A-A85E-F4704CB39D21 |
treatment provided by |
Felipe |
scientific name |
Dexosarcophaga pallida |
status |
sp. nov. |
Dexosarcophaga pallida View in CoL sp. nov.
urn:lsid:zoobank.org:act:65C1F210-E75B-4A8A-A85E-F4704CB39D21
Diagnosis
Vein R 1 bare. Male: scutellum without apical setae; vesica narrow at base and expanded at apex in ventral view ( Fig. 12E View Fig ); juxta strongly membranous, smooth and not differentiated from paraphallus ( Fig. 12D–E View Fig ). [Female unknown.]
Etymology
The species epithet ‘ pallida ’ should be treated as a noun in apposition. The name is a Latin adjective ‘ pallida ’ (= Latin), meaning ‘pale’, and alluding to the light apex of the distiphallus.
Material examined
Holotype COLOMBIA • ♂; Caquetá, Chiribiquete National Park , W Campamento; alt. 840 m; 26 Nov. 1992; G. Andrade-C leg.; NHRS [lost].
Paratype COLOMBIA • 1 ♂; same collection data as for holotype; NHRS [lost] .
Description
Male (n=2)
Length: 5–6 mm. Differs from D. phoenix sp. nov. as follows:
Frons about0.30 × head width at level of ocellar triangle; 7–9 well-developed frontal setae reaching level of apex of pedicel; gena and genal groove with slightly yellowish-silver pollinosity ( Fig. 13A View Fig ); acrostichals 3 (weakly differentiated) + 1; dorsocentrals 4 (anteriormost shorter) +3 (two minor anterior); intra-alars 2+ 2; meral setae 5–7; abdomen dark brown, with slightly yellowish-silver pollinosity; T4 with 1–2 pairs of lateral marginal setae; row of about 10 marginal setae on T5; marginal setae of ST2–4 slightly differentiated from discal setae; short median incision at posterior margin of ST5 ( Fig. 12A View Fig ); surstylus slightly curved ( Fig. 12B View Fig ); vesica narrow at base and expanded at apex in ventral view ( Fig. 12E View Fig ); juxta arching over acrophallus, strongly membranous, smooth and not clearly differentiated from paraphallus ( Fig. 12D–E View Fig ); median stylus narrow and with apical spines ( Fig. 12D–E View Fig ); lateral stylus equipped with strong spines apically and base curved towards ventral margin of paraphallus ( Fig. 12D–E View Fig ).
Female
Unknown.
Distribution
Colombia (Caquetá).
Remarks
Dexosarcophaga pallida sp. nov. is morphologically similar to Dexosarcophaga currani Dodge, 1968 . Males of both species have a stick-like vesica in lateral view ( Fig. 12D View Fig ; Mello-Patiu 2002: figs 53, 56) and a membranous projection from the ventral part of the paraphallus at the level of the acrophallus ( Fig. 12D View Fig ; Mello-Patiu 2002: figs 53, 56). The latter projection may be formed by the paraphallus or be a composite of both the paraphallus and the juxta. These two species can be differentiated by the following features: vesica strongly bifurcated at apex ( Fig. 12E View Fig ) and lateral and median styli approximately ⅓ the length of paraphallus ( Fig. 12D–E View Fig ) in Dexosarcophaga pallida sp. nov., versus vesica slightly bifurcated at apex ( Mello-Patiu 2002: fig. 58) and lateral and median styli approximately ½ the length of paraphallus ( Mello-Patiu 2002: figs 53, 56–57) in Dexosarcophaga currani .
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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