Dexosarcophaga limon, Santos & Pape & Mello-Patiu, 2022

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, European Journal of Taxonomy 828, pp. 109-137 : 121

Dexosarcophaga limon sp. nov.

urn:lsid:zoobank.org:act:96DDE888-0828-433C-9E66-71D6F7689605

Figs 3F , 6

Diagnosis

Vein R 1 bare. Male: scutellum with a pair of reduced apical setae; vesica with a ventral, sclerotized lobe ( Fig. 6D–E ); juxta folding around tip of paraphallus and with numerous spine-like processes ( Fig. 6D– E ). [Female unknown.]

Etymology

The species epithet ‘ limon ’ should be treated as a noun in apposition. The name refers to the province where the type locality of the new species is located.

Material examined

Holotype COSTA RICA • ♂; Limón, 15 km S of Siquerres, Las Brisas, Nairi-Barbilla nr Rio Dantas; alt. 300– 500 m; 21–28 Aug.1996; Gustafsson, Pape and Viklund leg.; INBio [lost].

Description

Male (n=1)

Length: 8 mm. Differs from D. phoenix sp. nov. as follows:

Frons about 0.25 × head width at level of ocellar triangle; 10 well-developed frontal setae reaching level of apex of pedicel; first flagellomere approximately 4× as long as pedicel; thorax with slightly yellowish-silver pollinosity ( Fig. 3F ); intra-alars 2 +2, postpronotals 2; meral setae 5–7; scutellum with pair of reduced apical setae; abdomen dark brown, with golden pollinosity; T5 with row of 12 marginal setae; cercus with pointed apex ( Fig. 6B–C ); surstylus trapezium-shaped in lateral view ( Fig. 6B ); pregonite almost straight, 1.5× length of postgonite and with broad base ( Fig. 6D ); vesica consisting of membranous and sclerotized areas and with ventral dark lobe with 2–3 spines ( Fig. 6D–E ); juxta equipped with numerous spines ( Fig. 6D–E ); median stylus with enlarged base and narrow apex, slightly shorter than lateral stylus, base curved towards ventral and dorsal margins of paraphallus and with apical spines ( Fig. 6D–E ); lateral stylus with base slightly curved towards ventral margin of paraphallus and with apical spines ( Fig. 6D–E ).

Female

Unknown.

Distribution

Costa Rica (Limón).

Remarks

Dexosarcophaga limon sp. nov. is morphologically similar to D. petra sp. nov. and D. paulistana (Lopes, 1982) by having a vesica with a rounded lobe in lateral view ( Figs 6D , 7D ; Lopes 1982a: fig. 58). Dexosarcophaga limon sp. nov. and D. petra sp. nov. can be differentiated from D. paulistana by the distally completely rounded vesica ( Figs 6D , 7D ) and with a digitiform projection distally in D. paulistana ( Lopes 1982a: fig. 58). Males of D. limon sp. nov. can be differentiated from those of D. petra sp. nov. by the following features: ST5 with arm-like processes almost parallel-sides in middle part, apically rounded, and almost half as long as sternite ( Fig. 6A ), cercus almost straight in lateral view ( Fig. 6B ), and juxta with small spines apically ( Fig. 6D–E ). In D. petra sp. nov., these features appear as follows: ST5 with arm-like processes gradually tapering, apically pointed and distinctly shorter than half of sternite, and with two small but distinct lobes projecting near the midline ( Fig. 7A ); apical half of cercus curved anteriorly ( Fig. 7B ), and juxta with small spines only at base ( Fig. 7D–E ).

Figures

Fig. 3. Dexosarcophaga spp., male habitus and terminalia. A–B. Dexosarcophaga phoenix sp. nov., holotype (MNRJ [lost]). A. Habitus, lateral view. B. Terminalia, lateral view. C–D. Dexosarcophaga jandainae sp. nov., ♂, paratype (MZUSP [lost]), Brazil, Mato Grosso, Chapada dos Guimarães. C. Habitus, lateral view. D. Terminalia, lateral view. E. Dexosarcophaga patiuorum sp. nov., ♂, holotype (MNRJ [lost]), habitus, lateral view. F. Dexosarcophaga limon sp. nov., ♂, holotype (INBio [lost]), habitus, lateral view. Scale bars = 1.0 mm.

Fig. 6. Dexosarcophaga limon sp. nov., ♂, holotype (INBio [lost]). A. Sternite 5, ventral view. B. Syntergosternite 7 +8, epandrium, cercus and surstylus, lateral view. C. Cerci, posterior view. D. Phallus and associated structures, lateral view. E. Distiphallus, ventral view. Abbreviations: see Material and methods. Scale bars =0.1 mm.

Fig. 7. Dexosarcophaga petra sp. nov., ♂, paratype (MNRJ [lost]), Brazil, Rio de Janeiro, Angra dos Reis. A. Sternite 5, ventral view. B. Syntergosternite 7+ 8, epandrium, cercus and surstylus, lateral view. C. Cerci, posterior view. D. Phallus and associated structures, lateral view. E. Distiphallus, ventral view. Abbreviations: see Material and methods. Scale bars =0.1 mm.