Neoscutops nitidus, Ale-Rocha, Rosaly & Freitas, Geovânia, 2011

Ale-Rocha, Rosaly & Freitas, Geovânia, 2011, Revision of the Neotropical genus Neoscutops Malloch (Diptera: Periscelididae), Zootaxa 3016, pp. 1-28 : 14-15

publication ID	https://doi.org/ 10.5281/zenodo.200588
DOI	https://doi.org/10.5281/zenodo.6186720
persistent identifier	https://treatment.plazi.org/id/F95A87EE-FF84-C209-AED3-CECAFB28FED3
treatment provided by	Plazi
scientific name	Neoscutops nitidus
status	sp. nov.

Treatment

Neoscutops nitidus View in CoL sp. nov.

( Figs. 29–32 View FIGURES 25 – 32 , 69 View FIGURES 62 – 71 )

Diagnosis. Frons and face shiny yellow; antenna yellow; palpus yellow with brown apex; scutum dark brown with anterior margin of pronotum and postpronotal lobe pale yellow; coxae brown; fore femur yellow with basal ¼ brown, fore tibia yellow with apical ¼ brown; mid and hind femur brown with apical ¼ yellow, mid tibia brown with base and preapical ring yellow, hind tibia yellow; all tarsi pale yellow.

Description. Holotype male. Body: 3.8 mm. Wing: 3.3 mm. Thorax: 1.9. Head ( Fig. 69 View FIGURES 62 – 71 ). Frons shiny, dark yellow, with a few short fine yellow setae on margin. Face shiny, dark yellow, with small brown spots laterally. Face and parafacial with sparse short fine yellow setae. Gena pale yellow with sparse pale yellow microtomentum and short, fine brown setae. Antenna: yellow; pedicel with short weak brown setae; first flagellomere oval-elongate; arista sub-basal dorsal with 9 dorsal and 4 ventral, long rays plus small setae between rays. Mouthparts: proboscis pale brown; palpus yellow with distal margin brown, palpus elongate, about 3.3 times longer than wide, apex slightly rounded, with short black setae; clypeus yellow, bulged. Postcranium pale yellow with sparse pale microtomentum and sparse short, weak brown setae, without lateral band of dense microtomentum. Eyes: interfacetal setae sparse, very short and weak, inconspicuous. Setae: 1 lateral and 1 medial developed vertical pairs, lateral pair smaller than medial pair; 1 orbital pair inserted on half of frons, as long as vertical pair, reclinate, all setae yellow with brown apexes; postocellar pair lost; ocellar triangle densely covered with short, fine, yellow setae, with one more robust, parallel brown ocellar pair on lateral of ocellar triangle.

Thorax. Scutum shiny, dark brown with anterior margin of pronotum, postpronotal lobe and postalar callus pale yellow; clothed in short fine brown setae; with pale microtomentum on lateral margins. Scutellum and subscutellum dark brown with pale microtomentum. Pleurae dark brown with sparse brown microtomentum except for a shiny bare area that extends from lower half of anepisternum to upper half of katepisternum. Setae: postpronotal not differentiated, 2 notopleural, 1 postsutural supra-alar and 1 postalar black, strong and long, 1 dorsocentral prescutellar short, slender and pale brown; scutellum with 2 long robust yellow lateral pairs; katepisternum with 1 strong and very long seta on upper margin, densely covered by short and slender yellow setae on posterior 2/3.

Legs: coxae brown; fore femur yellow with basal ¼ brown, fore tibia yellow with apical ¼ brown; mid and hind femur brown with apical ¼ yellow, mid tibia brown with base and preapical ring yellow, hind tibia yellow; all tarsi pale yellow. Fore femur with ventral series of spine-like black setae; mid tarsus with small black apical spines on ventral surface of tarsomeres 1–4. Apicoventral seta of mid tibia robust, very short, not reaching middle of first tarsomere.

Wing: brown, darker on costal margin; the longitudinal fold crosses the crossvein dm-cu in the middle.

Abdomen dark brown, clothed in dense pale microtomentum; coating dense, slender, short pale brown setae, longer laterally on first segment. Tergite 1+2 about 2/5 of length of abdomen; sternite 6 as in Figure 32 View FIGURES 25 – 32 ; tergite 6 free from syntergosternite 7+8 ( Fig. 32 View FIGURES 25 – 32 ). Terminalia: phallus quite robust ( Fig. 30 View FIGURES 25 – 32 ); cercus large, with truncated apex in lateral view ( Figs. 29, 30 View FIGURES 25 – 32 ); postgonite slender, with crossing apexes; ejaculatory apodeme as in Figure 31 View FIGURES 25 – 32 .

Female. Unknown.

Type material. Holotype 3 ( USNM). COSTA RICA, Pedregoso, D.L. Rounds / A.L. Melander Collection 1961. Condition of holotype: good; postocular pair lost; abdomen in microvial with glycerin.

Distribution. Costa Rica.

Etymology. From Latin nitidus = bright, shining, referring to the shiny appearance of the face.