Dexosarcophaga napo Santos & Pape & Mello-Patiu 2022, sp. nov.
Creators: name: Santos, Josenilson Rodrigues dos
name: Pape, Thomas
name: Mello-Patiu, Cátia Antunes de
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sarcophagidae
Dexosarcophaga
Dexosarcophaga napo

description: Dexosarcophaga napo sp. nov.
urn:lsid:zoobank.org:act: 7D291A80-C95E-4B05-A495-2BFC055F6FA6
Figs 8E–F, 11
Diagnosis
Vein R 1 setulose. Male: scutellum without apical setae; pregonite with distal part curved and with a spine-like projection (Fig. 11D); vesica stick-like in lateral view, extremities enlarged in ventral view (Fig. 11D–E); juxta mostly membranous and almost squared (Figs 8F, 11D). [Female unknown.]
Etymology
The species epithet ‘ napo ’ should be treated as a noun in apposition. The name refers to the province (named after the Río Napo) of the type locality of the new species.
Material examined
Holotype ECUADOR • ♂; Napo Province, Yasuní National Park, Yasuní Research Station; 00º38′ S, 76º36′ W; Nov. 1998; T. Pape and B. Viklund leg.; NHRS [lost].
Paratypes ECUADOR • 4 ♂♂: same collection data as for holotype; NHRS [lost].
Description
Male (n=5)
Length: 5–7 mm. Differs from D. phoenix sp. nov. as follows: Frons about 0.28 × head width at level of ocellar triangle; 5–8 well-developed frontal setae reaching level of apex of pedicel; gena and genal groove with slightly yellowish-silver pollinosity (Fig. 8E); first flagellomere approximately 4× as long as pedicel; thorax with slightly yellowish-silver pollinosity (Fig. 8E); acrostichals 3 (weakly differentiated) +1; dorsocentrals 3 (anteriormost shorter) + 3 (well differentiated); intra-alars 2 +2; meral setae 5–7; vein R 1 setulose; third costal sector setulose ventrally; abdomen dark brown, with slightly yellowish-silver pollinosity (Fig. 8E–F); T4 with 1–2 pairs of lateral marginal setae; row of about 10 marginal setae on T5; short incision along inner margin of ST5 and arms with pad-shaped protrusion (Fig. 11A); cercal prongs convergent in posterior view and truncated in lateral view (Fig. 11B–C); pregonite as long as postgonite, apical half curved and with spine-like projection (Fig. 11D); ventral margin of basiphallus with projection (Fig. 11D); vesica stick-like in lateral view and apically enlarged in ventral view (Fig. 11D–E); juxta mostly membranous and almost squared (Fig. 11 D-E); median stylus tube-like with developed projection, shorter than lateral stylus, and with narrow apex (Fig. 11D–E); lateral stylus tube-like, with base twisted towards ventral margin of paraphallus (Fig. 11D–E).
Female
Unknown.
Distribution
Ecuador (Napo).
Remarks
Dexosarcophaga napo sp. nov. is morphologically similar to Dexosarcophaga inaequalis Lopes, 1975. Males of both species have a stick-like vesica in lateral view (Fig. 11D; Silva & Mello-Patiu 2010: figs 53–54) and paraphallus with a projected lobe ventrally (Fig. 11D; Silva & Mello-Patiu 2010: figs 53–54). These two species can be differentiated by the following features: basiphallus with a conspicuous projection at ventral margin (Fig. 11D), projected lobe of paraphallus pointing distally in lateral view (Fig. 11D), and median stylus with a developed projection (Fig. 11D–E) in Dexosarcophaga napo sp. nov., versus basiphallus without a conspicuous projection at ventral margin (Silva & MelloPatiu 2010: fig. 53), projected lobe of paraphallus pointing ventrally in lateral view (Silva & MelloPatiu 2010: figs 53–54), and median stylus without a developed projection (Silva & Mello-Patiu 2010: figs 54–55) in Dexosarcophaga inaequalis.
description: Published as part of Santos, Josenilson Rodrigues dos, Pape, Thomas & Mello-Patiu, Cátia Antunes de, 2022, Eight new species of Dexosarcophaga Townsend, 1917 (Diptera, Sarcophagidae) from the Neotropical Region, pp. 109-137 in European Journal of Taxonomy 828 on pages 129-131, DOI: 10.5852/ejt.2022.828.1857, http://zenodo.org/record/6823730